diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index ddd820d..6056db7 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -367,6 +367,10 @@
 	intf->condition = USB_INTERFACE_UNBOUND;
 	usb_cancel_queued_reset(intf);
 
+	/* If the LPM disable succeeded, balance the ref counts. */
+	if (!lpm_disable_error)
+		usb_unlocked_enable_lpm(udev);
+
 	/* Unbound interfaces are always runtime-PM-disabled and -suspended */
 	if (driver->supports_autosuspend)
 		pm_runtime_disable(dev);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 673ee46..64854d7 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3241,8 +3241,7 @@
 			(state == USB3_LPM_U2 &&
 			 (u2_sel > USB3_LPM_MAX_U2_SEL_PEL ||
 			  u2_pel > USB3_LPM_MAX_U2_SEL_PEL))) {
-		dev_dbg(&udev->dev, "Device-initiated %s disabled due "
-				"to long SEL %llu ms or PEL %llu ms\n",
+		dev_dbg(&udev->dev, "Device-initiated %s disabled due to long SEL %llu us or PEL %llu us\n",
 				usb3_lpm_names[state], u1_sel, u1_pel);
 		return -EINVAL;
 	}
@@ -3320,16 +3319,6 @@
 
 	if (enable) {
 		/*
-		 * First, let the device know about the exit latencies
-		 * associated with the link state we're about to enable.
-		 */
-		ret = usb_req_set_sel(udev, state);
-		if (ret < 0) {
-			dev_warn(&udev->dev, "Set SEL for device-initiated "
-					"%s failed.\n", usb3_lpm_names[state]);
-			return -EBUSY;
-		}
-		/*
 		 * Now send the control transfer to enable device-initiated LPM
 		 * for either U1 or U2.
 		 */
@@ -3414,7 +3403,28 @@
 static void usb_enable_link_state(struct usb_hcd *hcd, struct usb_device *udev,
 		enum usb3_link_state state)
 {
-	int timeout;
+	int timeout, ret;
+	__u8 u1_mel = udev->bos->ss_cap->bU1devExitLat;
+	__le16 u2_mel = udev->bos->ss_cap->bU2DevExitLat;
+
+	/* If the device says it doesn't have *any* exit latency to come out of
+	 * U1 or U2, it's probably lying.  Assume it doesn't implement that link
+	 * state.
+	 */
+	if ((state == USB3_LPM_U1 && u1_mel == 0) ||
+			(state == USB3_LPM_U2 && u2_mel == 0))
+		return;
+
+	/*
+	 * First, let the device know about the exit latencies
+	 * associated with the link state we're about to enable.
+	 */
+	ret = usb_req_set_sel(udev, state);
+	if (ret < 0) {
+		dev_warn(&udev->dev, "Set SEL for device-initiated %s failed.\n",
+				usb3_lpm_names[state]);
+		return;
+	}
 
 	/* We allow the host controller to set the U1/U2 timeout internally
 	 * first, so that it can change its schedule to account for the
diff --git a/include/linux/usb/Kbuild b/include/linux/usb/Kbuild
index b607f35..e69de29 100644
--- a/include/linux/usb/Kbuild
+++ b/include/linux/usb/Kbuild
@@ -1,10 +0,0 @@
-header-y += audio.h
-header-y += cdc.h
-header-y += ch9.h
-header-y += ch11.h
-header-y += functionfs.h
-header-y += gadgetfs.h
-header-y += midi.h
-header-y += g_printer.h
-header-y += tmc.h
-header-y += video.h
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index a54b825..3d84619 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -17,531 +17,11 @@
  * Types and defines in this file are either specific to version 1.0 of
  * this standard or common for newer versions.
  */
-
 #ifndef __LINUX_USB_AUDIO_H
 #define __LINUX_USB_AUDIO_H
 
-#include <linux/types.h>
-
-/* bInterfaceProtocol values to denote the version of the standard used */
-#define UAC_VERSION_1			0x00
-#define UAC_VERSION_2			0x20
-
-/* A.2 Audio Interface Subclass Codes */
-#define USB_SUBCLASS_AUDIOCONTROL	0x01
-#define USB_SUBCLASS_AUDIOSTREAMING	0x02
-#define USB_SUBCLASS_MIDISTREAMING	0x03
-
-/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */
-#define UAC_HEADER			0x01
-#define UAC_INPUT_TERMINAL		0x02
-#define UAC_OUTPUT_TERMINAL		0x03
-#define UAC_MIXER_UNIT			0x04
-#define UAC_SELECTOR_UNIT		0x05
-#define UAC_FEATURE_UNIT		0x06
-#define UAC1_PROCESSING_UNIT		0x07
-#define UAC1_EXTENSION_UNIT		0x08
-
-/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */
-#define UAC_AS_GENERAL			0x01
-#define UAC_FORMAT_TYPE			0x02
-#define UAC_FORMAT_SPECIFIC		0x03
-
-/* A.7 Processing Unit Process Types */
-#define UAC_PROCESS_UNDEFINED		0x00
-#define UAC_PROCESS_UP_DOWNMIX		0x01
-#define UAC_PROCESS_DOLBY_PROLOGIC	0x02
-#define UAC_PROCESS_STEREO_EXTENDER	0x03
-#define UAC_PROCESS_REVERB		0x04
-#define UAC_PROCESS_CHORUS		0x05
-#define UAC_PROCESS_DYN_RANGE_COMP	0x06
-
-/* A.8 Audio Class-Specific Endpoint Descriptor Subtypes */
-#define UAC_EP_GENERAL			0x01
-
-/* A.9 Audio Class-Specific Request Codes */
-#define UAC_SET_			0x00
-#define UAC_GET_			0x80
-
-#define UAC__CUR			0x1
-#define UAC__MIN			0x2
-#define UAC__MAX			0x3
-#define UAC__RES			0x4
-#define UAC__MEM			0x5
-
-#define UAC_SET_CUR			(UAC_SET_ | UAC__CUR)
-#define UAC_GET_CUR			(UAC_GET_ | UAC__CUR)
-#define UAC_SET_MIN			(UAC_SET_ | UAC__MIN)
-#define UAC_GET_MIN			(UAC_GET_ | UAC__MIN)
-#define UAC_SET_MAX			(UAC_SET_ | UAC__MAX)
-#define UAC_GET_MAX			(UAC_GET_ | UAC__MAX)
-#define UAC_SET_RES			(UAC_SET_ | UAC__RES)
-#define UAC_GET_RES			(UAC_GET_ | UAC__RES)
-#define UAC_SET_MEM			(UAC_SET_ | UAC__MEM)
-#define UAC_GET_MEM			(UAC_GET_ | UAC__MEM)
-
-#define UAC_GET_STAT			0xff
-
-/* A.10 Control Selector Codes */
-
-/* A.10.1 Terminal Control Selectors */
-#define UAC_TERM_COPY_PROTECT		0x01
-
-/* A.10.2 Feature Unit Control Selectors */
-#define UAC_FU_MUTE			0x01
-#define UAC_FU_VOLUME			0x02
-#define UAC_FU_BASS			0x03
-#define UAC_FU_MID			0x04
-#define UAC_FU_TREBLE			0x05
-#define UAC_FU_GRAPHIC_EQUALIZER	0x06
-#define UAC_FU_AUTOMATIC_GAIN		0x07
-#define UAC_FU_DELAY			0x08
-#define UAC_FU_BASS_BOOST		0x09
-#define UAC_FU_LOUDNESS			0x0a
-
-#define UAC_CONTROL_BIT(CS)	(1 << ((CS) - 1))
-
-/* A.10.3.1 Up/Down-mix Processing Unit Controls Selectors */
-#define UAC_UD_ENABLE			0x01
-#define UAC_UD_MODE_SELECT		0x02
-
-/* A.10.3.2 Dolby Prologic (tm) Processing Unit Controls Selectors */
-#define UAC_DP_ENABLE			0x01
-#define UAC_DP_MODE_SELECT		0x02
-
-/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
-#define UAC_3D_ENABLE			0x01
-#define UAC_3D_SPACE			0x02
-
-/* A.10.3.4 Reverberation Processing Unit Control Selectors */
-#define UAC_REVERB_ENABLE		0x01
-#define UAC_REVERB_LEVEL		0x02
-#define UAC_REVERB_TIME			0x03
-#define UAC_REVERB_FEEDBACK		0x04
-
-/* A.10.3.5 Chorus Processing Unit Control Selectors */
-#define UAC_CHORUS_ENABLE		0x01
-#define UAC_CHORUS_LEVEL		0x02
-#define UAC_CHORUS_RATE			0x03
-#define UAC_CHORUS_DEPTH		0x04
-
-/* A.10.3.6 Dynamic Range Compressor Unit Control Selectors */
-#define UAC_DCR_ENABLE			0x01
-#define UAC_DCR_RATE			0x02
-#define UAC_DCR_MAXAMPL			0x03
-#define UAC_DCR_THRESHOLD		0x04
-#define UAC_DCR_ATTACK_TIME		0x05
-#define UAC_DCR_RELEASE_TIME		0x06
-
-/* A.10.4 Extension Unit Control Selectors */
-#define UAC_XU_ENABLE			0x01
-
-/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */
-#define UAC_MS_HEADER			0x01
-#define UAC_MIDI_IN_JACK		0x02
-#define UAC_MIDI_OUT_JACK		0x03
-
-/* MIDI - A.1 MS Class-Specific Endpoint Descriptor Subtypes */
-#define UAC_MS_GENERAL			0x01
-
-/* Terminals - 2.1 USB Terminal Types */
-#define UAC_TERMINAL_UNDEFINED		0x100
-#define UAC_TERMINAL_STREAMING		0x101
-#define UAC_TERMINAL_VENDOR_SPEC	0x1FF
-
-/* Terminal Control Selectors */
-/* 4.3.2  Class-Specific AC Interface Descriptor */
-struct uac1_ac_header_descriptor {
-	__u8  bLength;			/* 8 + n */
-	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
-	__u8  bDescriptorSubtype;	/* UAC_MS_HEADER */
-	__le16 bcdADC;			/* 0x0100 */
-	__le16 wTotalLength;		/* includes Unit and Terminal desc. */
-	__u8  bInCollection;		/* n */
-	__u8  baInterfaceNr[];		/* [n] */
-} __attribute__ ((packed));
-
-#define UAC_DT_AC_HEADER_SIZE(n)	(8 + (n))
-
-/* As above, but more useful for defining your own descriptors: */
-#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n)			\
-struct uac1_ac_header_descriptor_##n {			\
-	__u8  bLength;						\
-	__u8  bDescriptorType;					\
-	__u8  bDescriptorSubtype;				\
-	__le16 bcdADC;						\
-	__le16 wTotalLength;					\
-	__u8  bInCollection;					\
-	__u8  baInterfaceNr[n];					\
-} __attribute__ ((packed))
-
-/* 4.3.2.1 Input Terminal Descriptor */
-struct uac_input_terminal_descriptor {
-	__u8  bLength;			/* in bytes: 12 */
-	__u8  bDescriptorType;		/* CS_INTERFACE descriptor type */
-	__u8  bDescriptorSubtype;	/* INPUT_TERMINAL descriptor subtype */
-	__u8  bTerminalID;		/* Constant uniquely terminal ID */
-	__le16 wTerminalType;		/* USB Audio Terminal Types */
-	__u8  bAssocTerminal;		/* ID of the Output Terminal associated */
-	__u8  bNrChannels;		/* Number of logical output channels */
-	__le16 wChannelConfig;
-	__u8  iChannelNames;
-	__u8  iTerminal;
-} __attribute__ ((packed));
-
-#define UAC_DT_INPUT_TERMINAL_SIZE			12
-
-/* Terminals - 2.2 Input Terminal Types */
-#define UAC_INPUT_TERMINAL_UNDEFINED			0x200
-#define UAC_INPUT_TERMINAL_MICROPHONE			0x201
-#define UAC_INPUT_TERMINAL_DESKTOP_MICROPHONE		0x202
-#define UAC_INPUT_TERMINAL_PERSONAL_MICROPHONE		0x203
-#define UAC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE		0x204
-#define UAC_INPUT_TERMINAL_MICROPHONE_ARRAY		0x205
-#define UAC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY	0x206
-
-/* Terminals - control selectors */
-
-#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL		0x01
-
-/* 4.3.2.2 Output Terminal Descriptor */
-struct uac1_output_terminal_descriptor {
-	__u8  bLength;			/* in bytes: 9 */
-	__u8  bDescriptorType;		/* CS_INTERFACE descriptor type */
-	__u8  bDescriptorSubtype;	/* OUTPUT_TERMINAL descriptor subtype */
-	__u8  bTerminalID;		/* Constant uniquely terminal ID */
-	__le16 wTerminalType;		/* USB Audio Terminal Types */
-	__u8  bAssocTerminal;		/* ID of the Input Terminal associated */
-	__u8  bSourceID;		/* ID of the connected Unit or Terminal*/
-	__u8  iTerminal;
-} __attribute__ ((packed));
-
-#define UAC_DT_OUTPUT_TERMINAL_SIZE			9
-
-/* Terminals - 2.3 Output Terminal Types */
-#define UAC_OUTPUT_TERMINAL_UNDEFINED			0x300
-#define UAC_OUTPUT_TERMINAL_SPEAKER			0x301
-#define UAC_OUTPUT_TERMINAL_HEADPHONES			0x302
-#define UAC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO	0x303
-#define UAC_OUTPUT_TERMINAL_DESKTOP_SPEAKER		0x304
-#define UAC_OUTPUT_TERMINAL_ROOM_SPEAKER		0x305
-#define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER	0x306
-#define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER	0x307
-
-/* Set bControlSize = 2 as default setting */
-#define UAC_DT_FEATURE_UNIT_SIZE(ch)		(7 + ((ch) + 1) * 2)
-
-/* As above, but more useful for defining your own descriptors: */
-#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch)			\
-struct uac_feature_unit_descriptor_##ch {			\
-	__u8  bLength;						\
-	__u8  bDescriptorType;					\
-	__u8  bDescriptorSubtype;				\
-	__u8  bUnitID;						\
-	__u8  bSourceID;					\
-	__u8  bControlSize;					\
-	__le16 bmaControls[ch + 1];				\
-	__u8  iFeature;						\
-} __attribute__ ((packed))
-
-/* 4.3.2.3 Mixer Unit Descriptor */
-struct uac_mixer_unit_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bUnitID;
-	__u8 bNrInPins;
-	__u8 baSourceID[];
-} __attribute__ ((packed));
-
-static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc)
-{
-	return desc->baSourceID[desc->bNrInPins];
-}
-
-static inline __u32 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc,
-						  int protocol)
-{
-	if (protocol == UAC_VERSION_1)
-		return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
-			desc->baSourceID[desc->bNrInPins + 1];
-	else
-		return  (desc->baSourceID[desc->bNrInPins + 4] << 24) |
-			(desc->baSourceID[desc->bNrInPins + 3] << 16) |
-			(desc->baSourceID[desc->bNrInPins + 2] << 8)  |
-			(desc->baSourceID[desc->bNrInPins + 1]);
-}
-
-static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc,
-						int protocol)
-{
-	return (protocol == UAC_VERSION_1) ?
-		desc->baSourceID[desc->bNrInPins + 3] :
-		desc->baSourceID[desc->bNrInPins + 5];
-}
-
-static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc,
-					      int protocol)
-{
-	return (protocol == UAC_VERSION_1) ?
-		&desc->baSourceID[desc->bNrInPins + 4] :
-		&desc->baSourceID[desc->bNrInPins + 6];
-}
-
-static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc)
-{
-	__u8 *raw = (__u8 *) desc;
-	return raw[desc->bLength - 1];
-}
-
-/* 4.3.2.4 Selector Unit Descriptor */
-struct uac_selector_unit_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bUintID;
-	__u8 bNrInPins;
-	__u8 baSourceID[];
-} __attribute__ ((packed));
-
-static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc)
-{
-	__u8 *raw = (__u8 *) desc;
-	return raw[desc->bLength - 1];
-}
-
-/* 4.3.2.5 Feature Unit Descriptor */
-struct uac_feature_unit_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bUnitID;
-	__u8 bSourceID;
-	__u8 bControlSize;
-	__u8 bmaControls[0]; /* variable length */
-} __attribute__((packed));
-
-static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc)
-{
-	__u8 *raw = (__u8 *) desc;
-	return raw[desc->bLength - 1];
-}
-
-/* 4.3.2.6 Processing Unit Descriptors */
-struct uac_processing_unit_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bUnitID;
-	__u16 wProcessType;
-	__u8 bNrInPins;
-	__u8 baSourceID[];
-} __attribute__ ((packed));
-
-static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc)
-{
-	return desc->baSourceID[desc->bNrInPins];
-}
-
-static inline __u32 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc,
-						       int protocol)
-{
-	if (protocol == UAC_VERSION_1)
-		return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
-			desc->baSourceID[desc->bNrInPins + 1];
-	else
-		return  (desc->baSourceID[desc->bNrInPins + 4] << 24) |
-			(desc->baSourceID[desc->bNrInPins + 3] << 16) |
-			(desc->baSourceID[desc->bNrInPins + 2] << 8)  |
-			(desc->baSourceID[desc->bNrInPins + 1]);
-}
-
-static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc,
-						     int protocol)
-{
-	return (protocol == UAC_VERSION_1) ?
-		desc->baSourceID[desc->bNrInPins + 3] :
-		desc->baSourceID[desc->bNrInPins + 5];
-}
-
-static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc,
-						    int protocol)
-{
-	return (protocol == UAC_VERSION_1) ?
-		desc->baSourceID[desc->bNrInPins + 4] :
-		desc->baSourceID[desc->bNrInPins + 6];
-}
-
-static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
-						   int protocol)
-{
-	return (protocol == UAC_VERSION_1) ?
-		&desc->baSourceID[desc->bNrInPins + 5] :
-		&desc->baSourceID[desc->bNrInPins + 7];
-}
-
-static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
-						   int protocol)
-{
-	__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
-	return desc->baSourceID[desc->bNrInPins + control_size];
-}
-
-static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc,
-						 int protocol)
-{
-	__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
-	return &desc->baSourceID[desc->bNrInPins + control_size + 1];
-}
-
-/* 4.5.2 Class-Specific AS Interface Descriptor */
-struct uac1_as_header_descriptor {
-	__u8  bLength;			/* in bytes: 7 */
-	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
-	__u8  bDescriptorSubtype;	/* AS_GENERAL */
-	__u8  bTerminalLink;		/* Terminal ID of connected Terminal */
-	__u8  bDelay;			/* Delay introduced by the data path */
-	__le16 wFormatTag;		/* The Audio Data Format */
-} __attribute__ ((packed));
-
-#define UAC_DT_AS_HEADER_SIZE		7
-
-/* Formats - A.1.1 Audio Data Format Type I Codes */
-#define UAC_FORMAT_TYPE_I_UNDEFINED	0x0
-#define UAC_FORMAT_TYPE_I_PCM		0x1
-#define UAC_FORMAT_TYPE_I_PCM8		0x2
-#define UAC_FORMAT_TYPE_I_IEEE_FLOAT	0x3
-#define UAC_FORMAT_TYPE_I_ALAW		0x4
-#define UAC_FORMAT_TYPE_I_MULAW		0x5
-
-struct uac_format_type_i_continuous_descriptor {
-	__u8  bLength;			/* in bytes: 8 + (ns * 3) */
-	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
-	__u8  bDescriptorSubtype;	/* FORMAT_TYPE */
-	__u8  bFormatType;		/* FORMAT_TYPE_1 */
-	__u8  bNrChannels;		/* physical channels in the stream */
-	__u8  bSubframeSize;		/* */
-	__u8  bBitResolution;
-	__u8  bSamFreqType;
-	__u8  tLowerSamFreq[3];
-	__u8  tUpperSamFreq[3];
-} __attribute__ ((packed));
-
-#define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE	14
-
-struct uac_format_type_i_discrete_descriptor {
-	__u8  bLength;			/* in bytes: 8 + (ns * 3) */
-	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
-	__u8  bDescriptorSubtype;	/* FORMAT_TYPE */
-	__u8  bFormatType;		/* FORMAT_TYPE_1 */
-	__u8  bNrChannels;		/* physical channels in the stream */
-	__u8  bSubframeSize;		/* */
-	__u8  bBitResolution;
-	__u8  bSamFreqType;
-	__u8  tSamFreq[][3];
-} __attribute__ ((packed));
-
-#define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n)		\
-struct uac_format_type_i_discrete_descriptor_##n {		\
-	__u8  bLength;						\
-	__u8  bDescriptorType;					\
-	__u8  bDescriptorSubtype;				\
-	__u8  bFormatType;					\
-	__u8  bNrChannels;					\
-	__u8  bSubframeSize;					\
-	__u8  bBitResolution;					\
-	__u8  bSamFreqType;					\
-	__u8  tSamFreq[n][3];					\
-} __attribute__ ((packed))
-
-#define UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n)	(8 + (n * 3))
-
-struct uac_format_type_i_ext_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bFormatType;
-	__u8 bSubslotSize;
-	__u8 bBitResolution;
-	__u8 bHeaderLength;
-	__u8 bControlSize;
-	__u8 bSideBandProtocol;
-} __attribute__((packed));
-
-/* Formats - Audio Data Format Type I Codes */
-
-#define UAC_FORMAT_TYPE_II_MPEG	0x1001
-#define UAC_FORMAT_TYPE_II_AC3	0x1002
-
-struct uac_format_type_ii_discrete_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bFormatType;
-	__le16 wMaxBitRate;
-	__le16 wSamplesPerFrame;
-	__u8 bSamFreqType;
-	__u8 tSamFreq[][3];
-} __attribute__((packed));
-
-struct uac_format_type_ii_ext_descriptor {
-	__u8 bLength;
-	__u8 bDescriptorType;
-	__u8 bDescriptorSubtype;
-	__u8 bFormatType;
-	__u16 wMaxBitRate;
-	__u16 wSamplesPerFrame;
-	__u8 bHeaderLength;
-	__u8 bSideBandProtocol;
-} __attribute__((packed));
-
-/* type III */
-#define UAC_FORMAT_TYPE_III_IEC1937_AC3	0x2001
-#define UAC_FORMAT_TYPE_III_IEC1937_MPEG1_LAYER1	0x2002
-#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_NOEXT	0x2003
-#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_EXT	0x2004
-#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER1_LS	0x2005
-#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER23_LS	0x2006
-
-/* Formats - A.2 Format Type Codes */
-#define UAC_FORMAT_TYPE_UNDEFINED	0x0
-#define UAC_FORMAT_TYPE_I		0x1
-#define UAC_FORMAT_TYPE_II		0x2
-#define UAC_FORMAT_TYPE_III		0x3
-#define UAC_EXT_FORMAT_TYPE_I		0x81
-#define UAC_EXT_FORMAT_TYPE_II		0x82
-#define UAC_EXT_FORMAT_TYPE_III		0x83
-
-struct uac_iso_endpoint_descriptor {
-	__u8  bLength;			/* in bytes: 7 */
-	__u8  bDescriptorType;		/* USB_DT_CS_ENDPOINT */
-	__u8  bDescriptorSubtype;	/* EP_GENERAL */
-	__u8  bmAttributes;
-	__u8  bLockDelayUnits;
-	__le16 wLockDelay;
-} __attribute__((packed));
-#define UAC_ISO_ENDPOINT_DESC_SIZE	7
-
-#define UAC_EP_CS_ATTR_SAMPLE_RATE	0x01
-#define UAC_EP_CS_ATTR_PITCH_CONTROL	0x02
-#define UAC_EP_CS_ATTR_FILL_MAX		0x80
-
-/* status word format (3.7.1.1) */
-
-#define UAC1_STATUS_TYPE_ORIG_MASK		0x0f
-#define UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF	0x0
-#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_IF	0x1
-#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_EP	0x2
-
-#define UAC1_STATUS_TYPE_IRQ_PENDING		(1 << 7)
-#define UAC1_STATUS_TYPE_MEM_CHANGED		(1 << 6)
-
-struct uac1_status_word {
-	__u8 bStatusType;
-	__u8 bOriginator;
-} __attribute__((packed));
+#include <uapi/linux/usb/audio.h>
 
-#ifdef __KERNEL__
 
 struct usb_audio_control {
 	struct list_head list;
@@ -561,6 +41,4 @@
 	struct usb_descriptor_header *desc;
 };
 
-#endif /* __KERNEL__ */
-
 #endif /* __LINUX_USB_AUDIO_H */
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index d1d732c..9c210f2 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -29,887 +29,11 @@
  *     someone that the two other points are non-issues for that
  *     particular descriptor type.
  */
-
 #ifndef __LINUX_USB_CH9_H
 #define __LINUX_USB_CH9_H
 
-#include <linux/types.h>	/* __u8 etc */
-#include <asm/byteorder.h>	/* le16_to_cpu */
-
-/*-------------------------------------------------------------------------*/
-
-/* CONTROL REQUEST SUPPORT */
-
-/*
- * USB directions
- *
- * This bit flag is used in endpoint descriptors' bEndpointAddress field.
- * It's also one of three fields in control requests bRequestType.
- */
-#define USB_DIR_OUT			0		/* to device */
-#define USB_DIR_IN			0x80		/* to host */
-
-/*
- * USB types, the second of three bRequestType fields
- */
-#define USB_TYPE_MASK			(0x03 << 5)
-#define USB_TYPE_STANDARD		(0x00 << 5)
-#define USB_TYPE_CLASS			(0x01 << 5)
-#define USB_TYPE_VENDOR			(0x02 << 5)
-#define USB_TYPE_RESERVED		(0x03 << 5)
-
-/*
- * USB recipients, the third of three bRequestType fields
- */
-#define USB_RECIP_MASK			0x1f
-#define USB_RECIP_DEVICE		0x00
-#define USB_RECIP_INTERFACE		0x01
-#define USB_RECIP_ENDPOINT		0x02
-#define USB_RECIP_OTHER			0x03
-/* From Wireless USB 1.0 */
-#define USB_RECIP_PORT			0x04
-#define USB_RECIP_RPIPE		0x05
-
-/*
- * Standard requests, for the bRequest field of a SETUP packet.
- *
- * These are qualified by the bRequestType field, so that for example
- * TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
- * by a GET_STATUS request.
- */
-#define USB_REQ_GET_STATUS		0x00
-#define USB_REQ_CLEAR_FEATURE		0x01
-#define USB_REQ_SET_FEATURE		0x03
-#define USB_REQ_SET_ADDRESS		0x05
-#define USB_REQ_GET_DESCRIPTOR		0x06
-#define USB_REQ_SET_DESCRIPTOR		0x07
-#define USB_REQ_GET_CONFIGURATION	0x08
-#define USB_REQ_SET_CONFIGURATION	0x09
-#define USB_REQ_GET_INTERFACE		0x0A
-#define USB_REQ_SET_INTERFACE		0x0B
-#define USB_REQ_SYNCH_FRAME		0x0C
-#define USB_REQ_SET_SEL			0x30
-#define USB_REQ_SET_ISOCH_DELAY		0x31
-
-#define USB_REQ_SET_ENCRYPTION		0x0D	/* Wireless USB */
-#define USB_REQ_GET_ENCRYPTION		0x0E
-#define USB_REQ_RPIPE_ABORT		0x0E
-#define USB_REQ_SET_HANDSHAKE		0x0F
-#define USB_REQ_RPIPE_RESET		0x0F
-#define USB_REQ_GET_HANDSHAKE		0x10
-#define USB_REQ_SET_CONNECTION		0x11
-#define USB_REQ_SET_SECURITY_DATA	0x12
-#define USB_REQ_GET_SECURITY_DATA	0x13
-#define USB_REQ_SET_WUSB_DATA		0x14
-#define USB_REQ_LOOPBACK_DATA_WRITE	0x15
-#define USB_REQ_LOOPBACK_DATA_READ	0x16
-#define USB_REQ_SET_INTERFACE_DS	0x17
-
-/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
- * used by hubs to put ports into a new L1 suspend state, except that it
- * forgot to define its number ...
- */
-
-/*
- * USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
- * are read as a bit array returned by USB_REQ_GET_STATUS.  (So there
- * are at most sixteen features of each type.)  Hubs may also support a
- * new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend.
- */
-#define USB_DEVICE_SELF_POWERED		0	/* (read only) */
-#define USB_DEVICE_REMOTE_WAKEUP	1	/* dev may initiate wakeup */
-#define USB_DEVICE_TEST_MODE		2	/* (wired high speed only) */
-#define USB_DEVICE_BATTERY		2	/* (wireless) */
-#define USB_DEVICE_B_HNP_ENABLE		3	/* (otg) dev may initiate HNP */
-#define USB_DEVICE_WUSB_DEVICE		3	/* (wireless)*/
-#define USB_DEVICE_A_HNP_SUPPORT	4	/* (otg) RH port supports HNP */
-#define USB_DEVICE_A_ALT_HNP_SUPPORT	5	/* (otg) other RH port does */
-#define USB_DEVICE_DEBUG_MODE		6	/* (special devices only) */
-
-/*
- * Test Mode Selectors
- * See USB 2.0 spec Table 9-7
- */
-#define	TEST_J		1
-#define	TEST_K		2
-#define	TEST_SE0_NAK	3
-#define	TEST_PACKET	4
-#define	TEST_FORCE_EN	5
-
-/*
- * New Feature Selectors as added by USB 3.0
- * See USB 3.0 spec Table 9-6
- */
-#define USB_DEVICE_U1_ENABLE	48	/* dev may initiate U1 transition */
-#define USB_DEVICE_U2_ENABLE	49	/* dev may initiate U2 transition */
-#define USB_DEVICE_LTM_ENABLE	50	/* dev may send LTM */
-#define USB_INTRF_FUNC_SUSPEND	0	/* function suspend */
-
-#define USB_INTR_FUNC_SUSPEND_OPT_MASK	0xFF00
-/*
- * Suspend Options, Table 9-7 USB 3.0 spec
- */
-#define USB_INTRF_FUNC_SUSPEND_LP	(1 << (8 + 0))
-#define USB_INTRF_FUNC_SUSPEND_RW	(1 << (8 + 1))
-
-#define USB_ENDPOINT_HALT		0	/* IN/OUT will STALL */
-
-/* Bit array elements as returned by the USB_REQ_GET_STATUS request. */
-#define USB_DEV_STAT_U1_ENABLED		2	/* transition into U1 state */
-#define USB_DEV_STAT_U2_ENABLED		3	/* transition into U2 state */
-#define USB_DEV_STAT_LTM_ENABLED	4	/* Latency tolerance messages */
-
-/**
- * struct usb_ctrlrequest - SETUP data for a USB device control request
- * @bRequestType: matches the USB bmRequestType field
- * @bRequest: matches the USB bRequest field
- * @wValue: matches the USB wValue field (le16 byte order)
- * @wIndex: matches the USB wIndex field (le16 byte order)
- * @wLength: matches the USB wLength field (le16 byte order)
- *
- * This structure is used to send control requests to a USB device.  It matches
- * the different fields of the USB 2.0 Spec section 9.3, table 9-2.  See the
- * USB spec for a fuller description of the different fields, and what they are
- * used for.
- *
- * Note that the driver for any interface can issue control requests.
- * For most devices, interfaces don't coordinate with each other, so
- * such requests may be made at any time.
- */
-struct usb_ctrlrequest {
-	__u8 bRequestType;
-	__u8 bRequest;
-	__le16 wValue;
-	__le16 wIndex;
-	__le16 wLength;
-} __attribute__ ((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
- * (rarely) accepted by SET_DESCRIPTOR.
- *
- * Note that all multi-byte values here are encoded in little endian
- * byte order "on the wire".  Within the kernel and when exposed
- * through the Linux-USB APIs, they are not converted to cpu byte
- * order; it is the responsibility of the client code to do this.
- * The single exception is when device and configuration descriptors (but
- * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
- * in this case the fields are converted to host endianness by the kernel.
- */
-
-/*
- * Descriptor types ... USB 2.0 spec table 9.5
- */
-#define USB_DT_DEVICE			0x01
-#define USB_DT_CONFIG			0x02
-#define USB_DT_STRING			0x03
-#define USB_DT_INTERFACE		0x04
-#define USB_DT_ENDPOINT			0x05
-#define USB_DT_DEVICE_QUALIFIER		0x06
-#define USB_DT_OTHER_SPEED_CONFIG	0x07
-#define USB_DT_INTERFACE_POWER		0x08
-/* these are from a minor usb 2.0 revision (ECN) */
-#define USB_DT_OTG			0x09
-#define USB_DT_DEBUG			0x0a
-#define USB_DT_INTERFACE_ASSOCIATION	0x0b
-/* these are from the Wireless USB spec */
-#define USB_DT_SECURITY			0x0c
-#define USB_DT_KEY			0x0d
-#define USB_DT_ENCRYPTION_TYPE		0x0e
-#define USB_DT_BOS			0x0f
-#define USB_DT_DEVICE_CAPABILITY	0x10
-#define USB_DT_WIRELESS_ENDPOINT_COMP	0x11
-#define USB_DT_WIRE_ADAPTER		0x21
-#define USB_DT_RPIPE			0x22
-#define USB_DT_CS_RADIO_CONTROL		0x23
-/* From the T10 UAS specification */
-#define USB_DT_PIPE_USAGE		0x24
-/* From the USB 3.0 spec */
-#define	USB_DT_SS_ENDPOINT_COMP		0x30
-
-/* Conventional codes for class-specific descriptors.  The convention is
- * defined in the USB "Common Class" Spec (3.11).  Individual class specs
- * are authoritative for their usage, not the "common class" writeup.
- */
-#define USB_DT_CS_DEVICE		(USB_TYPE_CLASS | USB_DT_DEVICE)
-#define USB_DT_CS_CONFIG		(USB_TYPE_CLASS | USB_DT_CONFIG)
-#define USB_DT_CS_STRING		(USB_TYPE_CLASS | USB_DT_STRING)
-#define USB_DT_CS_INTERFACE		(USB_TYPE_CLASS | USB_DT_INTERFACE)
-#define USB_DT_CS_ENDPOINT		(USB_TYPE_CLASS | USB_DT_ENDPOINT)
-
-/* All standard descriptors have these 2 fields at the beginning */
-struct usb_descriptor_header {
-	__u8  bLength;
-	__u8  bDescriptorType;
-} __attribute__ ((packed));
-
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_DEVICE: Device descriptor */
-struct usb_device_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 bcdUSB;
-	__u8  bDeviceClass;
-	__u8  bDeviceSubClass;
-	__u8  bDeviceProtocol;
-	__u8  bMaxPacketSize0;
-	__le16 idVendor;
-	__le16 idProduct;
-	__le16 bcdDevice;
-	__u8  iManufacturer;
-	__u8  iProduct;
-	__u8  iSerialNumber;
-	__u8  bNumConfigurations;
-} __attribute__ ((packed));
-
-#define USB_DT_DEVICE_SIZE		18
-
-
-/*
- * Device and/or Interface Class codes
- * as found in bDeviceClass or bInterfaceClass
- * and defined by www.usb.org documents
- */
-#define USB_CLASS_PER_INTERFACE		0	/* for DeviceClass */
-#define USB_CLASS_AUDIO			1
-#define USB_CLASS_COMM			2
-#define USB_CLASS_HID			3
-#define USB_CLASS_PHYSICAL		5
-#define USB_CLASS_STILL_IMAGE		6
-#define USB_CLASS_PRINTER		7
-#define USB_CLASS_MASS_STORAGE		8
-#define USB_CLASS_HUB			9
-#define USB_CLASS_CDC_DATA		0x0a
-#define USB_CLASS_CSCID			0x0b	/* chip+ smart card */
-#define USB_CLASS_CONTENT_SEC		0x0d	/* content security */
-#define USB_CLASS_VIDEO			0x0e
-#define USB_CLASS_WIRELESS_CONTROLLER	0xe0
-#define USB_CLASS_MISC			0xef
-#define USB_CLASS_APP_SPEC		0xfe
-#define USB_CLASS_VENDOR_SPEC		0xff
-
-#define USB_SUBCLASS_VENDOR_SPEC	0xff
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_CONFIG: Configuration descriptor information.
- *
- * USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
- * descriptor type is different.  Highspeed-capable devices can look
- * different depending on what speed they're currently running.  Only
- * devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
- * descriptors.
- */
-struct usb_config_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 wTotalLength;
-	__u8  bNumInterfaces;
-	__u8  bConfigurationValue;
-	__u8  iConfiguration;
-	__u8  bmAttributes;
-	__u8  bMaxPower;
-} __attribute__ ((packed));
-
-#define USB_DT_CONFIG_SIZE		9
-
-/* from config descriptor bmAttributes */
-#define USB_CONFIG_ATT_ONE		(1 << 7)	/* must be set */
-#define USB_CONFIG_ATT_SELFPOWER	(1 << 6)	/* self powered */
-#define USB_CONFIG_ATT_WAKEUP		(1 << 5)	/* can wakeup */
-#define USB_CONFIG_ATT_BATTERY		(1 << 4)	/* battery powered */
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_STRING: String descriptor */
-struct usb_string_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 wData[1];		/* UTF-16LE encoded */
-} __attribute__ ((packed));
-
-/* note that "string" zero is special, it holds language codes that
- * the device supports, not Unicode characters.
- */
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_INTERFACE: Interface descriptor */
-struct usb_interface_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bInterfaceNumber;
-	__u8  bAlternateSetting;
-	__u8  bNumEndpoints;
-	__u8  bInterfaceClass;
-	__u8  bInterfaceSubClass;
-	__u8  bInterfaceProtocol;
-	__u8  iInterface;
-} __attribute__ ((packed));
-
-#define USB_DT_INTERFACE_SIZE		9
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_ENDPOINT: Endpoint descriptor */
-struct usb_endpoint_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bEndpointAddress;
-	__u8  bmAttributes;
-	__le16 wMaxPacketSize;
-	__u8  bInterval;
-
-	/* NOTE:  these two are _only_ in audio endpoints. */
-	/* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
-	__u8  bRefresh;
-	__u8  bSynchAddress;
-} __attribute__ ((packed));
-
-#define USB_DT_ENDPOINT_SIZE		7
-#define USB_DT_ENDPOINT_AUDIO_SIZE	9	/* Audio extension */
-
-
-/*
- * Endpoints
- */
-#define USB_ENDPOINT_NUMBER_MASK	0x0f	/* in bEndpointAddress */
-#define USB_ENDPOINT_DIR_MASK		0x80
-
-#define USB_ENDPOINT_XFERTYPE_MASK	0x03	/* in bmAttributes */
-#define USB_ENDPOINT_XFER_CONTROL	0
-#define USB_ENDPOINT_XFER_ISOC		1
-#define USB_ENDPOINT_XFER_BULK		2
-#define USB_ENDPOINT_XFER_INT		3
-#define USB_ENDPOINT_MAX_ADJUSTABLE	0x80
-
-/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
-#define USB_ENDPOINT_INTRTYPE		0x30
-#define USB_ENDPOINT_INTR_PERIODIC	(0 << 4)
-#define USB_ENDPOINT_INTR_NOTIFICATION	(1 << 4)
-
-#define USB_ENDPOINT_SYNCTYPE		0x0c
-#define USB_ENDPOINT_SYNC_NONE		(0 << 2)
-#define USB_ENDPOINT_SYNC_ASYNC		(1 << 2)
-#define USB_ENDPOINT_SYNC_ADAPTIVE	(2 << 2)
-#define USB_ENDPOINT_SYNC_SYNC		(3 << 2)
-
-#define USB_ENDPOINT_USAGE_MASK		0x30
-#define USB_ENDPOINT_USAGE_DATA		0x00
-#define USB_ENDPOINT_USAGE_FEEDBACK	0x10
-#define USB_ENDPOINT_USAGE_IMPLICIT_FB	0x20	/* Implicit feedback Data endpoint */
-
-/*-------------------------------------------------------------------------*/
-
-/**
- * usb_endpoint_num - get the endpoint's number
- * @epd: endpoint to be checked
- *
- * Returns @epd's number: 0 to 15.
- */
-static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
-{
-	return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
-}
-
-/**
- * usb_endpoint_type - get the endpoint's transfer type
- * @epd: endpoint to be checked
- *
- * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
- * to @epd's transfer type.
- */
-static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
-{
-	return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
-}
-
-/**
- * usb_endpoint_dir_in - check if the endpoint has IN direction
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type IN, otherwise it returns false.
- */
-static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
-}
-
-/**
- * usb_endpoint_dir_out - check if the endpoint has OUT direction
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type OUT, otherwise it returns false.
- */
-static inline int usb_endpoint_dir_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
-}
-
-/**
- * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type bulk, otherwise it returns false.
- */
-static inline int usb_endpoint_xfer_bulk(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_BULK);
-}
-
-/**
- * usb_endpoint_xfer_control - check if the endpoint has control transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type control, otherwise it returns false.
- */
-static inline int usb_endpoint_xfer_control(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_CONTROL);
-}
-
-/**
- * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type interrupt, otherwise it returns
- * false.
- */
-static inline int usb_endpoint_xfer_int(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_INT);
-}
-
-/**
- * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint is of type isochronous, otherwise it returns
- * false.
- */
-static inline int usb_endpoint_xfer_isoc(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
-		USB_ENDPOINT_XFER_ISOC);
-}
-
-/**
- * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has bulk transfer type and IN direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_bulk_in(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
-}
-
-/**
- * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has bulk transfer type and OUT direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_bulk_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
-}
-
-/**
- * usb_endpoint_is_int_in - check if the endpoint is interrupt IN
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has interrupt transfer type and IN direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_int_in(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
-}
-
-/**
- * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has interrupt transfer type and OUT direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_int_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd);
-}
-
-/**
- * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has isochronous transfer type and IN direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_isoc_in(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd);
-}
-
-/**
- * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
- * @epd: endpoint to be checked
- *
- * Returns true if the endpoint has isochronous transfer type and OUT direction,
- * otherwise it returns false.
- */
-static inline int usb_endpoint_is_isoc_out(
-				const struct usb_endpoint_descriptor *epd)
-{
-	return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
-}
-
-/**
- * usb_endpoint_maxp - get endpoint's max packet size
- * @epd: endpoint to be checked
- *
- * Returns @epd's max packet
- */
-static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
-{
-	return __le16_to_cpu(epd->wMaxPacketSize);
-}
-
-static inline int usb_endpoint_interrupt_type(
-		const struct usb_endpoint_descriptor *epd)
-{
-	return epd->bmAttributes & USB_ENDPOINT_INTRTYPE;
-}
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
-struct usb_ss_ep_comp_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bMaxBurst;
-	__u8  bmAttributes;
-	__le16 wBytesPerInterval;
-} __attribute__ ((packed));
-
-#define USB_DT_SS_EP_COMP_SIZE		6
-
-/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
-static inline int
-usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
-{
-	int		max_streams;
-
-	if (!comp)
-		return 0;
-
-	max_streams = comp->bmAttributes & 0x1f;
-
-	if (!max_streams)
-		return 0;
-
-	max_streams = 1 << max_streams;
-
-	return max_streams;
-}
-
-/* Bits 1:0 of bmAttributes if this is an isoc endpoint */
-#define USB_SS_MULT(p)			(1 + ((p) & 0x3))
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
-struct usb_qualifier_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 bcdUSB;
-	__u8  bDeviceClass;
-	__u8  bDeviceSubClass;
-	__u8  bDeviceProtocol;
-	__u8  bMaxPacketSize0;
-	__u8  bNumConfigurations;
-	__u8  bRESERVED;
-} __attribute__ ((packed));
-
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_OTG (from OTG 1.0a supplement) */
-struct usb_otg_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bmAttributes;	/* support for HNP, SRP, etc */
-} __attribute__ ((packed));
-
-/* from usb_otg_descriptor.bmAttributes */
-#define USB_OTG_SRP		(1 << 0)
-#define USB_OTG_HNP		(1 << 1)	/* swap host/device roles */
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_DEBUG:  for special highspeed devices, replacing serial console */
-struct usb_debug_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	/* bulk endpoints with 8 byte maxpacket */
-	__u8  bDebugInEndpoint;
-	__u8  bDebugOutEndpoint;
-} __attribute__((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
-struct usb_interface_assoc_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bFirstInterface;
-	__u8  bInterfaceCount;
-	__u8  bFunctionClass;
-	__u8  bFunctionSubClass;
-	__u8  bFunctionProtocol;
-	__u8  iFunction;
-} __attribute__ ((packed));
-
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_SECURITY:  group of wireless security descriptors, including
- * encryption types available for setting up a CC/association.
- */
-struct usb_security_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 wTotalLength;
-	__u8  bNumEncryptionTypes;
-} __attribute__((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_KEY:  used with {GET,SET}_SECURITY_DATA; only public keys
- * may be retrieved.
- */
-struct usb_key_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  tTKID[3];
-	__u8  bReserved;
-	__u8  bKeyData[0];
-} __attribute__((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_ENCRYPTION_TYPE:  bundled in DT_SECURITY groups */
-struct usb_encryption_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bEncryptionType;
-#define	USB_ENC_TYPE_UNSECURE		0
-#define	USB_ENC_TYPE_WIRED		1	/* non-wireless mode */
-#define	USB_ENC_TYPE_CCM_1		2	/* aes128/cbc session */
-#define	USB_ENC_TYPE_RSA_1		3	/* rsa3072/sha1 auth */
-	__u8  bEncryptionValue;		/* use in SET_ENCRYPTION */
-	__u8  bAuthKeyIndex;
-} __attribute__((packed));
-
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_BOS:  group of device-level capabilities */
-struct usb_bos_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__le16 wTotalLength;
-	__u8  bNumDeviceCaps;
-} __attribute__((packed));
-
-#define USB_DT_BOS_SIZE		5
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_DEVICE_CAPABILITY:  grouped with BOS */
-struct usb_dev_cap_header {
-	__u8  bLength;
-	__u8  bDescriptorType;
-	__u8  bDevCapabilityType;
-} __attribute__((packed));
-
-#define	USB_CAP_TYPE_WIRELESS_USB	1
-
-struct usb_wireless_cap_descriptor {	/* Ultra Wide Band */
-	__u8  bLength;
-	__u8  bDescriptorType;
-	__u8  bDevCapabilityType;
-
-	__u8  bmAttributes;
-#define	USB_WIRELESS_P2P_DRD		(1 << 1)
-#define	USB_WIRELESS_BEACON_MASK	(3 << 2)
-#define	USB_WIRELESS_BEACON_SELF	(1 << 2)
-#define	USB_WIRELESS_BEACON_DIRECTED	(2 << 2)
-#define	USB_WIRELESS_BEACON_NONE	(3 << 2)
-	__le16 wPHYRates;	/* bit rates, Mbps */
-#define	USB_WIRELESS_PHY_53		(1 << 0)	/* always set */
-#define	USB_WIRELESS_PHY_80		(1 << 1)
-#define	USB_WIRELESS_PHY_107		(1 << 2)	/* always set */
-#define	USB_WIRELESS_PHY_160		(1 << 3)
-#define	USB_WIRELESS_PHY_200		(1 << 4)	/* always set */
-#define	USB_WIRELESS_PHY_320		(1 << 5)
-#define	USB_WIRELESS_PHY_400		(1 << 6)
-#define	USB_WIRELESS_PHY_480		(1 << 7)
-	__u8  bmTFITXPowerInfo;	/* TFI power levels */
-	__u8  bmFFITXPowerInfo;	/* FFI power levels */
-	__le16 bmBandGroup;
-	__u8  bReserved;
-} __attribute__((packed));
-
-/* USB 2.0 Extension descriptor */
-#define	USB_CAP_TYPE_EXT		2
-
-struct usb_ext_cap_descriptor {		/* Link Power Management */
-	__u8  bLength;
-	__u8  bDescriptorType;
-	__u8  bDevCapabilityType;
-	__le32 bmAttributes;
-#define USB_LPM_SUPPORT			(1 << 1)	/* supports LPM */
-#define USB_BESL_SUPPORT		(1 << 2)	/* supports BESL */
-#define USB_BESL_BASELINE_VALID		(1 << 3)	/* Baseline BESL valid*/
-#define USB_BESL_DEEP_VALID		(1 << 4)	/* Deep BESL valid */
-#define USB_GET_BESL_BASELINE(p)	(((p) & (0xf << 8)) >> 8)
-#define USB_GET_BESL_DEEP(p)		(((p) & (0xf << 12)) >> 12)
-} __attribute__((packed));
-
-#define USB_DT_USB_EXT_CAP_SIZE	7
-
-/*
- * SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB
- * specific device level capabilities
- */
-#define		USB_SS_CAP_TYPE		3
-struct usb_ss_cap_descriptor {		/* Link Power Management */
-	__u8  bLength;
-	__u8  bDescriptorType;
-	__u8  bDevCapabilityType;
-	__u8  bmAttributes;
-#define USB_LTM_SUPPORT			(1 << 1) /* supports LTM */
-	__le16 wSpeedSupported;
-#define USB_LOW_SPEED_OPERATION		(1)	 /* Low speed operation */
-#define USB_FULL_SPEED_OPERATION	(1 << 1) /* Full speed operation */
-#define USB_HIGH_SPEED_OPERATION	(1 << 2) /* High speed operation */
-#define USB_5GBPS_OPERATION		(1 << 3) /* Operation at 5Gbps */
-	__u8  bFunctionalitySupport;
-	__u8  bU1devExitLat;
-	__le16 bU2DevExitLat;
-} __attribute__((packed));
-
-#define USB_DT_USB_SS_CAP_SIZE	10
-
-/*
- * Container ID Capability descriptor: Defines the instance unique ID used to
- * identify the instance across all operating modes
- */
-#define	CONTAINER_ID_TYPE	4
-struct usb_ss_container_id_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-	__u8  bDevCapabilityType;
-	__u8  bReserved;
-	__u8  ContainerID[16]; /* 128-bit number */
-} __attribute__((packed));
-
-#define USB_DT_USB_SS_CONTN_ID_SIZE	20
-/*-------------------------------------------------------------------------*/
-
-/* USB_DT_WIRELESS_ENDPOINT_COMP:  companion descriptor associated with
- * each endpoint descriptor for a wireless device
- */
-struct usb_wireless_ep_comp_descriptor {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bMaxBurst;
-	__u8  bMaxSequence;
-	__le16 wMaxStreamDelay;
-	__le16 wOverTheAirPacketSize;
-	__u8  bOverTheAirInterval;
-	__u8  bmCompAttributes;
-#define USB_ENDPOINT_SWITCH_MASK	0x03	/* in bmCompAttributes */
-#define USB_ENDPOINT_SWITCH_NO		0
-#define USB_ENDPOINT_SWITCH_SWITCH	1
-#define USB_ENDPOINT_SWITCH_SCALE	2
-} __attribute__((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
- * host and a device for connection set up, mutual authentication, and
- * exchanging short lived session keys.  The handshake depends on a CC.
- */
-struct usb_handshake {
-	__u8 bMessageNumber;
-	__u8 bStatus;
-	__u8 tTKID[3];
-	__u8 bReserved;
-	__u8 CDID[16];
-	__u8 nonce[16];
-	__u8 MIC[8];
-} __attribute__((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
- * A CC may also be set up using non-wireless secure channels (including
- * wired USB!), and some devices may support CCs with multiple hosts.
- */
-struct usb_connection_context {
-	__u8 CHID[16];		/* persistent host id */
-	__u8 CDID[16];		/* device id (unique w/in host context) */
-	__u8 CK[16];		/* connection key */
-} __attribute__((packed));
-
-/*-------------------------------------------------------------------------*/
-
-/* USB 2.0 defines three speeds, here's how Linux identifies them */
-
-enum usb_device_speed {
-	USB_SPEED_UNKNOWN = 0,			/* enumerating */
-	USB_SPEED_LOW, USB_SPEED_FULL,		/* usb 1.1 */
-	USB_SPEED_HIGH,				/* usb 2.0 */
-	USB_SPEED_WIRELESS,			/* wireless (usb 2.5) */
-	USB_SPEED_SUPER,			/* usb 3.0 */
-};
+#include <uapi/linux/usb/ch9.h>
 
-#ifdef __KERNEL__
 
 /**
  * usb_speed_string() - Returns human readable-name of the speed.
@@ -919,86 +43,4 @@
  */
 extern const char *usb_speed_string(enum usb_device_speed speed);
 
-#endif
-
-enum usb_device_state {
-	/* NOTATTACHED isn't in the USB spec, and this state acts
-	 * the same as ATTACHED ... but it's clearer this way.
-	 */
-	USB_STATE_NOTATTACHED = 0,
-
-	/* chapter 9 and authentication (wireless) device states */
-	USB_STATE_ATTACHED,
-	USB_STATE_POWERED,			/* wired */
-	USB_STATE_RECONNECTING,			/* auth */
-	USB_STATE_UNAUTHENTICATED,		/* auth */
-	USB_STATE_DEFAULT,			/* limited function */
-	USB_STATE_ADDRESS,
-	USB_STATE_CONFIGURED,			/* most functions */
-
-	USB_STATE_SUSPENDED
-
-	/* NOTE:  there are actually four different SUSPENDED
-	 * states, returning to POWERED, DEFAULT, ADDRESS, or
-	 * CONFIGURED respectively when SOF tokens flow again.
-	 * At this level there's no difference between L1 and L2
-	 * suspend states.  (L2 being original USB 1.1 suspend.)
-	 */
-};
-
-enum usb3_link_state {
-	USB3_LPM_U0 = 0,
-	USB3_LPM_U1,
-	USB3_LPM_U2,
-	USB3_LPM_U3
-};
-
-/*
- * A U1 timeout of 0x0 means the parent hub will reject any transitions to U1.
- * 0xff means the parent hub will accept transitions to U1, but will not
- * initiate a transition.
- *
- * A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to
- * U1 after that many microseconds.  Timeouts of 0x80 to 0xFE are reserved
- * values.
- *
- * A U2 timeout of 0x0 means the parent hub will reject any transitions to U2.
- * 0xff means the parent hub will accept transitions to U2, but will not
- * initiate a transition.
- *
- * A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to
- * U2 after N*256 microseconds.  Therefore a U2 timeout value of 0x1 means a U2
- * idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means
- * 65.024ms.
- */
-#define USB3_LPM_DISABLED		0x0
-#define USB3_LPM_U1_MAX_TIMEOUT		0x7F
-#define USB3_LPM_U2_MAX_TIMEOUT		0xFE
-#define USB3_LPM_DEVICE_INITIATED	0xFF
-
-struct usb_set_sel_req {
-	__u8	u1_sel;
-	__u8	u1_pel;
-	__le16	u2_sel;
-	__le16	u2_pel;
-} __attribute__ ((packed));
-
-/*
- * The Set System Exit Latency control transfer provides one byte each for
- * U1 SEL and U1 PEL, so the max exit latency is 0xFF.  U2 SEL and U2 PEL each
- * are two bytes long.
- */
-#define USB3_LPM_MAX_U1_SEL_PEL		0xFF
-#define USB3_LPM_MAX_U2_SEL_PEL		0xFFFF
-
-/*-------------------------------------------------------------------------*/
-
-/*
- * As per USB compliance update, a device that is actively drawing
- * more than 100mA from USB must report itself as bus-powered in
- * the GetStatus(DEVICE) call.
- * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
- */
-#define USB_SELF_POWER_VBUS_MAX_DRAW		100
-
 #endif /* __LINUX_USB_CH9_H */
diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h
index a843d08..65d0a88 100644
--- a/include/linux/usb/functionfs.h
+++ b/include/linux/usb/functionfs.h
@@ -1,171 +1,8 @@
 #ifndef __LINUX_FUNCTIONFS_H__
 #define __LINUX_FUNCTIONFS_H__ 1
 
+#include <uapi/linux/usb/functionfs.h>
 
-#include <linux/types.h>
-#include <linux/ioctl.h>
-
-#include <linux/usb/ch9.h>
-
-
-enum {
-	FUNCTIONFS_DESCRIPTORS_MAGIC = 1,
-	FUNCTIONFS_STRINGS_MAGIC     = 2
-};
-
-
-#ifndef __KERNEL__
-
-/* Descriptor of an non-audio endpoint */
-struct usb_endpoint_descriptor_no_audio {
-	__u8  bLength;
-	__u8  bDescriptorType;
-
-	__u8  bEndpointAddress;
-	__u8  bmAttributes;
-	__le16 wMaxPacketSize;
-	__u8  bInterval;
-} __attribute__((packed));
-
-
-/*
- * All numbers must be in little endian order.
- */
-
-struct usb_functionfs_descs_head {
-	__le32 magic;
-	__le32 length;
-	__le32 fs_count;
-	__le32 hs_count;
-} __attribute__((packed));
-
-/*
- * Descriptors format:
- *
- * | off | name      | type         | description                          |
- * |-----+-----------+--------------+--------------------------------------|
- * |   0 | magic     | LE32         | FUNCTIONFS_{FS,HS}_DESCRIPTORS_MAGIC |
- * |   4 | length    | LE32         | length of the whole data chunk       |
- * |   8 | fs_count  | LE32         | number of full-speed descriptors     |
- * |  12 | hs_count  | LE32         | number of high-speed descriptors     |
- * |  16 | fs_descrs | Descriptor[] | list of full-speed descriptors       |
- * |     | hs_descrs | Descriptor[] | list of high-speed descriptors       |
- *
- * descs are just valid USB descriptors and have the following format:
- *
- * | off | name            | type | description              |
- * |-----+-----------------+------+--------------------------|
- * |   0 | bLength         | U8   | length of the descriptor |
- * |   1 | bDescriptorType | U8   | descriptor type          |
- * |   2 | payload         |      | descriptor's payload     |
- */
-
-struct usb_functionfs_strings_head {
-	__le32 magic;
-	__le32 length;
-	__le32 str_count;
-	__le32 lang_count;
-} __attribute__((packed));
-
-/*
- * Strings format:
- *
- * | off | name       | type                  | description                |
- * |-----+------------+-----------------------+----------------------------|
- * |   0 | magic      | LE32                  | FUNCTIONFS_STRINGS_MAGIC   |
- * |   4 | length     | LE32                  | length of the data chunk   |
- * |   8 | str_count  | LE32                  | number of strings          |
- * |  12 | lang_count | LE32                  | number of languages        |
- * |  16 | stringtab  | StringTab[lang_count] | table of strings per lang  |
- *
- * For each language there is one stringtab entry (ie. there are lang_count
- * stringtab entires).  Each StringTab has following format:
- *
- * | off | name    | type              | description                        |
- * |-----+---------+-------------------+------------------------------------|
- * |   0 | lang    | LE16              | language code                      |
- * |   2 | strings | String[str_count] | array of strings in given language |
- *
- * For each string there is one strings entry (ie. there are str_count
- * string entries).  Each String is a NUL terminated string encoded in
- * UTF-8.
- */
-
-#endif
-
-
-/*
- * Events are delivered on the ep0 file descriptor, when the user mode driver
- * reads from this file descriptor after writing the descriptors.  Don't
- * stop polling this descriptor.
- */
-
-enum usb_functionfs_event_type {
-	FUNCTIONFS_BIND,
-	FUNCTIONFS_UNBIND,
-
-	FUNCTIONFS_ENABLE,
-	FUNCTIONFS_DISABLE,
-
-	FUNCTIONFS_SETUP,
-
-	FUNCTIONFS_SUSPEND,
-	FUNCTIONFS_RESUME
-};
-
-/* NOTE:  this structure must stay the same size and layout on
- * both 32-bit and 64-bit kernels.
- */
-struct usb_functionfs_event {
-	union {
-		/* SETUP: packet; DATA phase i/o precedes next event
-		 *(setup.bmRequestType & USB_DIR_IN) flags direction */
-		struct usb_ctrlrequest	setup;
-	} __attribute__((packed)) u;
-
-	/* enum usb_functionfs_event_type */
-	__u8				type;
-	__u8				_pad[3];
-} __attribute__((packed));
-
-
-/* Endpoint ioctls */
-/* The same as in gadgetfs */
-
-/* IN transfers may be reported to the gadget driver as complete
- *	when the fifo is loaded, before the host reads the data;
- * OUT transfers may be reported to the host's "client" driver as
- *	complete when they're sitting in the FIFO unread.
- * THIS returns how many bytes are "unclaimed" in the endpoint fifo
- * (needed for precise fault handling, when the hardware allows it)
- */
-#define	FUNCTIONFS_FIFO_STATUS	_IO('g', 1)
-
-/* discards any unclaimed data in the fifo. */
-#define	FUNCTIONFS_FIFO_FLUSH	_IO('g', 2)
-
-/* resets endpoint halt+toggle; used to implement set_interface.
- * some hardware (like pxa2xx) can't support this.
- */
-#define	FUNCTIONFS_CLEAR_HALT	_IO('g', 3)
-
-/* Specific for functionfs */
-
-/*
- * Returns reverse mapping of an interface.  Called on EP0.  If there
- * is no such interface returns -EDOM.  If function is not active
- * returns -ENODEV.
- */
-#define	FUNCTIONFS_INTERFACE_REVMAP	_IO('g', 128)
-
-/*
- * Returns real bEndpointAddress of an endpoint.  If function is not
- * active returns -ENODEV.
- */
-#define	FUNCTIONFS_ENDPOINT_REVMAP	_IO('g', 129)
-
-
-#ifdef __KERNEL__
 
 struct ffs_data;
 struct usb_composite_dev;
@@ -197,5 +34,3 @@
 
 
 #endif
-
-#endif
diff --git a/include/uapi/linux/usb/Kbuild b/include/uapi/linux/usb/Kbuild
index aafaa5a..6cb4ea8 100644
--- a/include/uapi/linux/usb/Kbuild
+++ b/include/uapi/linux/usb/Kbuild
@@ -1 +1,11 @@
 # UAPI Header export list
+header-y += audio.h
+header-y += cdc.h
+header-y += ch11.h
+header-y += ch9.h
+header-y += functionfs.h
+header-y += g_printer.h
+header-y += gadgetfs.h
+header-y += midi.h
+header-y += tmc.h
+header-y += video.h
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
new file mode 100644
index 0000000..ac90037
--- /dev/null
+++ b/include/uapi/linux/usb/audio.h
@@ -0,0 +1,545 @@
+/*
+ * <linux/usb/audio.h> -- USB Audio definitions.
+ *
+ * Copyright (C) 2006 Thumtronics Pty Ltd.
+ * Developed for Thumtronics by Grey Innovation
+ * Ben Williamson <ben.williamson@greyinnovation.com>
+ *
+ * This software is distributed under the terms of the GNU General Public
+ * License ("GPL") version 2, as published by the Free Software Foundation.
+ *
+ * This file holds USB constants and structures defined
+ * by the USB Device Class Definition for Audio Devices.
+ * Comments below reference relevant sections of that document:
+ *
+ * http://www.usb.org/developers/devclass_docs/audio10.pdf
+ *
+ * Types and defines in this file are either specific to version 1.0 of
+ * this standard or common for newer versions.
+ */
+
+#ifndef _UAPI__LINUX_USB_AUDIO_H
+#define _UAPI__LINUX_USB_AUDIO_H
+
+#include <linux/types.h>
+
+/* bInterfaceProtocol values to denote the version of the standard used */
+#define UAC_VERSION_1			0x00
+#define UAC_VERSION_2			0x20
+
+/* A.2 Audio Interface Subclass Codes */
+#define USB_SUBCLASS_AUDIOCONTROL	0x01
+#define USB_SUBCLASS_AUDIOSTREAMING	0x02
+#define USB_SUBCLASS_MIDISTREAMING	0x03
+
+/* A.5 Audio Class-Specific AC Interface Descriptor Subtypes */
+#define UAC_HEADER			0x01
+#define UAC_INPUT_TERMINAL		0x02
+#define UAC_OUTPUT_TERMINAL		0x03
+#define UAC_MIXER_UNIT			0x04
+#define UAC_SELECTOR_UNIT		0x05
+#define UAC_FEATURE_UNIT		0x06
+#define UAC1_PROCESSING_UNIT		0x07
+#define UAC1_EXTENSION_UNIT		0x08
+
+/* A.6 Audio Class-Specific AS Interface Descriptor Subtypes */
+#define UAC_AS_GENERAL			0x01
+#define UAC_FORMAT_TYPE			0x02
+#define UAC_FORMAT_SPECIFIC		0x03
+
+/* A.7 Processing Unit Process Types */
+#define UAC_PROCESS_UNDEFINED		0x00
+#define UAC_PROCESS_UP_DOWNMIX		0x01
+#define UAC_PROCESS_DOLBY_PROLOGIC	0x02
+#define UAC_PROCESS_STEREO_EXTENDER	0x03
+#define UAC_PROCESS_REVERB		0x04
+#define UAC_PROCESS_CHORUS		0x05
+#define UAC_PROCESS_DYN_RANGE_COMP	0x06
+
+/* A.8 Audio Class-Specific Endpoint Descriptor Subtypes */
+#define UAC_EP_GENERAL			0x01
+
+/* A.9 Audio Class-Specific Request Codes */
+#define UAC_SET_			0x00
+#define UAC_GET_			0x80
+
+#define UAC__CUR			0x1
+#define UAC__MIN			0x2
+#define UAC__MAX			0x3
+#define UAC__RES			0x4
+#define UAC__MEM			0x5
+
+#define UAC_SET_CUR			(UAC_SET_ | UAC__CUR)
+#define UAC_GET_CUR			(UAC_GET_ | UAC__CUR)
+#define UAC_SET_MIN			(UAC_SET_ | UAC__MIN)
+#define UAC_GET_MIN			(UAC_GET_ | UAC__MIN)
+#define UAC_SET_MAX			(UAC_SET_ | UAC__MAX)
+#define UAC_GET_MAX			(UAC_GET_ | UAC__MAX)
+#define UAC_SET_RES			(UAC_SET_ | UAC__RES)
+#define UAC_GET_RES			(UAC_GET_ | UAC__RES)
+#define UAC_SET_MEM			(UAC_SET_ | UAC__MEM)
+#define UAC_GET_MEM			(UAC_GET_ | UAC__MEM)
+
+#define UAC_GET_STAT			0xff
+
+/* A.10 Control Selector Codes */
+
+/* A.10.1 Terminal Control Selectors */
+#define UAC_TERM_COPY_PROTECT		0x01
+
+/* A.10.2 Feature Unit Control Selectors */
+#define UAC_FU_MUTE			0x01
+#define UAC_FU_VOLUME			0x02
+#define UAC_FU_BASS			0x03
+#define UAC_FU_MID			0x04
+#define UAC_FU_TREBLE			0x05
+#define UAC_FU_GRAPHIC_EQUALIZER	0x06
+#define UAC_FU_AUTOMATIC_GAIN		0x07
+#define UAC_FU_DELAY			0x08
+#define UAC_FU_BASS_BOOST		0x09
+#define UAC_FU_LOUDNESS			0x0a
+
+#define UAC_CONTROL_BIT(CS)	(1 << ((CS) - 1))
+
+/* A.10.3.1 Up/Down-mix Processing Unit Controls Selectors */
+#define UAC_UD_ENABLE			0x01
+#define UAC_UD_MODE_SELECT		0x02
+
+/* A.10.3.2 Dolby Prologic (tm) Processing Unit Controls Selectors */
+#define UAC_DP_ENABLE			0x01
+#define UAC_DP_MODE_SELECT		0x02
+
+/* A.10.3.3 3D Stereo Extender Processing Unit Control Selectors */
+#define UAC_3D_ENABLE			0x01
+#define UAC_3D_SPACE			0x02
+
+/* A.10.3.4 Reverberation Processing Unit Control Selectors */
+#define UAC_REVERB_ENABLE		0x01
+#define UAC_REVERB_LEVEL		0x02
+#define UAC_REVERB_TIME			0x03
+#define UAC_REVERB_FEEDBACK		0x04
+
+/* A.10.3.5 Chorus Processing Unit Control Selectors */
+#define UAC_CHORUS_ENABLE		0x01
+#define UAC_CHORUS_LEVEL		0x02
+#define UAC_CHORUS_RATE			0x03
+#define UAC_CHORUS_DEPTH		0x04
+
+/* A.10.3.6 Dynamic Range Compressor Unit Control Selectors */
+#define UAC_DCR_ENABLE			0x01
+#define UAC_DCR_RATE			0x02
+#define UAC_DCR_MAXAMPL			0x03
+#define UAC_DCR_THRESHOLD		0x04
+#define UAC_DCR_ATTACK_TIME		0x05
+#define UAC_DCR_RELEASE_TIME		0x06
+
+/* A.10.4 Extension Unit Control Selectors */
+#define UAC_XU_ENABLE			0x01
+
+/* MIDI - A.1 MS Class-Specific Interface Descriptor Subtypes */
+#define UAC_MS_HEADER			0x01
+#define UAC_MIDI_IN_JACK		0x02
+#define UAC_MIDI_OUT_JACK		0x03
+
+/* MIDI - A.1 MS Class-Specific Endpoint Descriptor Subtypes */
+#define UAC_MS_GENERAL			0x01
+
+/* Terminals - 2.1 USB Terminal Types */
+#define UAC_TERMINAL_UNDEFINED		0x100
+#define UAC_TERMINAL_STREAMING		0x101
+#define UAC_TERMINAL_VENDOR_SPEC	0x1FF
+
+/* Terminal Control Selectors */
+/* 4.3.2  Class-Specific AC Interface Descriptor */
+struct uac1_ac_header_descriptor {
+	__u8  bLength;			/* 8 + n */
+	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
+	__u8  bDescriptorSubtype;	/* UAC_MS_HEADER */
+	__le16 bcdADC;			/* 0x0100 */
+	__le16 wTotalLength;		/* includes Unit and Terminal desc. */
+	__u8  bInCollection;		/* n */
+	__u8  baInterfaceNr[];		/* [n] */
+} __attribute__ ((packed));
+
+#define UAC_DT_AC_HEADER_SIZE(n)	(8 + (n))
+
+/* As above, but more useful for defining your own descriptors: */
+#define DECLARE_UAC_AC_HEADER_DESCRIPTOR(n)			\
+struct uac1_ac_header_descriptor_##n {			\
+	__u8  bLength;						\
+	__u8  bDescriptorType;					\
+	__u8  bDescriptorSubtype;				\
+	__le16 bcdADC;						\
+	__le16 wTotalLength;					\
+	__u8  bInCollection;					\
+	__u8  baInterfaceNr[n];					\
+} __attribute__ ((packed))
+
+/* 4.3.2.1 Input Terminal Descriptor */
+struct uac_input_terminal_descriptor {
+	__u8  bLength;			/* in bytes: 12 */
+	__u8  bDescriptorType;		/* CS_INTERFACE descriptor type */
+	__u8  bDescriptorSubtype;	/* INPUT_TERMINAL descriptor subtype */
+	__u8  bTerminalID;		/* Constant uniquely terminal ID */
+	__le16 wTerminalType;		/* USB Audio Terminal Types */
+	__u8  bAssocTerminal;		/* ID of the Output Terminal associated */
+	__u8  bNrChannels;		/* Number of logical output channels */
+	__le16 wChannelConfig;
+	__u8  iChannelNames;
+	__u8  iTerminal;
+} __attribute__ ((packed));
+
+#define UAC_DT_INPUT_TERMINAL_SIZE			12
+
+/* Terminals - 2.2 Input Terminal Types */
+#define UAC_INPUT_TERMINAL_UNDEFINED			0x200
+#define UAC_INPUT_TERMINAL_MICROPHONE			0x201
+#define UAC_INPUT_TERMINAL_DESKTOP_MICROPHONE		0x202
+#define UAC_INPUT_TERMINAL_PERSONAL_MICROPHONE		0x203
+#define UAC_INPUT_TERMINAL_OMNI_DIR_MICROPHONE		0x204
+#define UAC_INPUT_TERMINAL_MICROPHONE_ARRAY		0x205
+#define UAC_INPUT_TERMINAL_PROC_MICROPHONE_ARRAY	0x206
+
+/* Terminals - control selectors */
+
+#define UAC_TERMINAL_CS_COPY_PROTECT_CONTROL		0x01
+
+/* 4.3.2.2 Output Terminal Descriptor */
+struct uac1_output_terminal_descriptor {
+	__u8  bLength;			/* in bytes: 9 */
+	__u8  bDescriptorType;		/* CS_INTERFACE descriptor type */
+	__u8  bDescriptorSubtype;	/* OUTPUT_TERMINAL descriptor subtype */
+	__u8  bTerminalID;		/* Constant uniquely terminal ID */
+	__le16 wTerminalType;		/* USB Audio Terminal Types */
+	__u8  bAssocTerminal;		/* ID of the Input Terminal associated */
+	__u8  bSourceID;		/* ID of the connected Unit or Terminal*/
+	__u8  iTerminal;
+} __attribute__ ((packed));
+
+#define UAC_DT_OUTPUT_TERMINAL_SIZE			9
+
+/* Terminals - 2.3 Output Terminal Types */
+#define UAC_OUTPUT_TERMINAL_UNDEFINED			0x300
+#define UAC_OUTPUT_TERMINAL_SPEAKER			0x301
+#define UAC_OUTPUT_TERMINAL_HEADPHONES			0x302
+#define UAC_OUTPUT_TERMINAL_HEAD_MOUNTED_DISPLAY_AUDIO	0x303
+#define UAC_OUTPUT_TERMINAL_DESKTOP_SPEAKER		0x304
+#define UAC_OUTPUT_TERMINAL_ROOM_SPEAKER		0x305
+#define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER	0x306
+#define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER	0x307
+
+/* Set bControlSize = 2 as default setting */
+#define UAC_DT_FEATURE_UNIT_SIZE(ch)		(7 + ((ch) + 1) * 2)
+
+/* As above, but more useful for defining your own descriptors: */
+#define DECLARE_UAC_FEATURE_UNIT_DESCRIPTOR(ch)			\
+struct uac_feature_unit_descriptor_##ch {			\
+	__u8  bLength;						\
+	__u8  bDescriptorType;					\
+	__u8  bDescriptorSubtype;				\
+	__u8  bUnitID;						\
+	__u8  bSourceID;					\
+	__u8  bControlSize;					\
+	__le16 bmaControls[ch + 1];				\
+	__u8  iFeature;						\
+} __attribute__ ((packed))
+
+/* 4.3.2.3 Mixer Unit Descriptor */
+struct uac_mixer_unit_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bUnitID;
+	__u8 bNrInPins;
+	__u8 baSourceID[];
+} __attribute__ ((packed));
+
+static inline __u8 uac_mixer_unit_bNrChannels(struct uac_mixer_unit_descriptor *desc)
+{
+	return desc->baSourceID[desc->bNrInPins];
+}
+
+static inline __u32 uac_mixer_unit_wChannelConfig(struct uac_mixer_unit_descriptor *desc,
+						  int protocol)
+{
+	if (protocol == UAC_VERSION_1)
+		return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
+			desc->baSourceID[desc->bNrInPins + 1];
+	else
+		return  (desc->baSourceID[desc->bNrInPins + 4] << 24) |
+			(desc->baSourceID[desc->bNrInPins + 3] << 16) |
+			(desc->baSourceID[desc->bNrInPins + 2] << 8)  |
+			(desc->baSourceID[desc->bNrInPins + 1]);
+}
+
+static inline __u8 uac_mixer_unit_iChannelNames(struct uac_mixer_unit_descriptor *desc,
+						int protocol)
+{
+	return (protocol == UAC_VERSION_1) ?
+		desc->baSourceID[desc->bNrInPins + 3] :
+		desc->baSourceID[desc->bNrInPins + 5];
+}
+
+static inline __u8 *uac_mixer_unit_bmControls(struct uac_mixer_unit_descriptor *desc,
+					      int protocol)
+{
+	return (protocol == UAC_VERSION_1) ?
+		&desc->baSourceID[desc->bNrInPins + 4] :
+		&desc->baSourceID[desc->bNrInPins + 6];
+}
+
+static inline __u8 uac_mixer_unit_iMixer(struct uac_mixer_unit_descriptor *desc)
+{
+	__u8 *raw = (__u8 *) desc;
+	return raw[desc->bLength - 1];
+}
+
+/* 4.3.2.4 Selector Unit Descriptor */
+struct uac_selector_unit_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bUintID;
+	__u8 bNrInPins;
+	__u8 baSourceID[];
+} __attribute__ ((packed));
+
+static inline __u8 uac_selector_unit_iSelector(struct uac_selector_unit_descriptor *desc)
+{
+	__u8 *raw = (__u8 *) desc;
+	return raw[desc->bLength - 1];
+}
+
+/* 4.3.2.5 Feature Unit Descriptor */
+struct uac_feature_unit_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bUnitID;
+	__u8 bSourceID;
+	__u8 bControlSize;
+	__u8 bmaControls[0]; /* variable length */
+} __attribute__((packed));
+
+static inline __u8 uac_feature_unit_iFeature(struct uac_feature_unit_descriptor *desc)
+{
+	__u8 *raw = (__u8 *) desc;
+	return raw[desc->bLength - 1];
+}
+
+/* 4.3.2.6 Processing Unit Descriptors */
+struct uac_processing_unit_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bUnitID;
+	__u16 wProcessType;
+	__u8 bNrInPins;
+	__u8 baSourceID[];
+} __attribute__ ((packed));
+
+static inline __u8 uac_processing_unit_bNrChannels(struct uac_processing_unit_descriptor *desc)
+{
+	return desc->baSourceID[desc->bNrInPins];
+}
+
+static inline __u32 uac_processing_unit_wChannelConfig(struct uac_processing_unit_descriptor *desc,
+						       int protocol)
+{
+	if (protocol == UAC_VERSION_1)
+		return (desc->baSourceID[desc->bNrInPins + 2] << 8) |
+			desc->baSourceID[desc->bNrInPins + 1];
+	else
+		return  (desc->baSourceID[desc->bNrInPins + 4] << 24) |
+			(desc->baSourceID[desc->bNrInPins + 3] << 16) |
+			(desc->baSourceID[desc->bNrInPins + 2] << 8)  |
+			(desc->baSourceID[desc->bNrInPins + 1]);
+}
+
+static inline __u8 uac_processing_unit_iChannelNames(struct uac_processing_unit_descriptor *desc,
+						     int protocol)
+{
+	return (protocol == UAC_VERSION_1) ?
+		desc->baSourceID[desc->bNrInPins + 3] :
+		desc->baSourceID[desc->bNrInPins + 5];
+}
+
+static inline __u8 uac_processing_unit_bControlSize(struct uac_processing_unit_descriptor *desc,
+						    int protocol)
+{
+	return (protocol == UAC_VERSION_1) ?
+		desc->baSourceID[desc->bNrInPins + 4] :
+		desc->baSourceID[desc->bNrInPins + 6];
+}
+
+static inline __u8 *uac_processing_unit_bmControls(struct uac_processing_unit_descriptor *desc,
+						   int protocol)
+{
+	return (protocol == UAC_VERSION_1) ?
+		&desc->baSourceID[desc->bNrInPins + 5] :
+		&desc->baSourceID[desc->bNrInPins + 7];
+}
+
+static inline __u8 uac_processing_unit_iProcessing(struct uac_processing_unit_descriptor *desc,
+						   int protocol)
+{
+	__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
+	return desc->baSourceID[desc->bNrInPins + control_size];
+}
+
+static inline __u8 *uac_processing_unit_specific(struct uac_processing_unit_descriptor *desc,
+						 int protocol)
+{
+	__u8 control_size = uac_processing_unit_bControlSize(desc, protocol);
+	return &desc->baSourceID[desc->bNrInPins + control_size + 1];
+}
+
+/* 4.5.2 Class-Specific AS Interface Descriptor */
+struct uac1_as_header_descriptor {
+	__u8  bLength;			/* in bytes: 7 */
+	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
+	__u8  bDescriptorSubtype;	/* AS_GENERAL */
+	__u8  bTerminalLink;		/* Terminal ID of connected Terminal */
+	__u8  bDelay;			/* Delay introduced by the data path */
+	__le16 wFormatTag;		/* The Audio Data Format */
+} __attribute__ ((packed));
+
+#define UAC_DT_AS_HEADER_SIZE		7
+
+/* Formats - A.1.1 Audio Data Format Type I Codes */
+#define UAC_FORMAT_TYPE_I_UNDEFINED	0x0
+#define UAC_FORMAT_TYPE_I_PCM		0x1
+#define UAC_FORMAT_TYPE_I_PCM8		0x2
+#define UAC_FORMAT_TYPE_I_IEEE_FLOAT	0x3
+#define UAC_FORMAT_TYPE_I_ALAW		0x4
+#define UAC_FORMAT_TYPE_I_MULAW		0x5
+
+struct uac_format_type_i_continuous_descriptor {
+	__u8  bLength;			/* in bytes: 8 + (ns * 3) */
+	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
+	__u8  bDescriptorSubtype;	/* FORMAT_TYPE */
+	__u8  bFormatType;		/* FORMAT_TYPE_1 */
+	__u8  bNrChannels;		/* physical channels in the stream */
+	__u8  bSubframeSize;		/* */
+	__u8  bBitResolution;
+	__u8  bSamFreqType;
+	__u8  tLowerSamFreq[3];
+	__u8  tUpperSamFreq[3];
+} __attribute__ ((packed));
+
+#define UAC_FORMAT_TYPE_I_CONTINUOUS_DESC_SIZE	14
+
+struct uac_format_type_i_discrete_descriptor {
+	__u8  bLength;			/* in bytes: 8 + (ns * 3) */
+	__u8  bDescriptorType;		/* USB_DT_CS_INTERFACE */
+	__u8  bDescriptorSubtype;	/* FORMAT_TYPE */
+	__u8  bFormatType;		/* FORMAT_TYPE_1 */
+	__u8  bNrChannels;		/* physical channels in the stream */
+	__u8  bSubframeSize;		/* */
+	__u8  bBitResolution;
+	__u8  bSamFreqType;
+	__u8  tSamFreq[][3];
+} __attribute__ ((packed));
+
+#define DECLARE_UAC_FORMAT_TYPE_I_DISCRETE_DESC(n)		\
+struct uac_format_type_i_discrete_descriptor_##n {		\
+	__u8  bLength;						\
+	__u8  bDescriptorType;					\
+	__u8  bDescriptorSubtype;				\
+	__u8  bFormatType;					\
+	__u8  bNrChannels;					\
+	__u8  bSubframeSize;					\
+	__u8  bBitResolution;					\
+	__u8  bSamFreqType;					\
+	__u8  tSamFreq[n][3];					\
+} __attribute__ ((packed))
+
+#define UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(n)	(8 + (n * 3))
+
+struct uac_format_type_i_ext_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bFormatType;
+	__u8 bSubslotSize;
+	__u8 bBitResolution;
+	__u8 bHeaderLength;
+	__u8 bControlSize;
+	__u8 bSideBandProtocol;
+} __attribute__((packed));
+
+/* Formats - Audio Data Format Type I Codes */
+
+#define UAC_FORMAT_TYPE_II_MPEG	0x1001
+#define UAC_FORMAT_TYPE_II_AC3	0x1002
+
+struct uac_format_type_ii_discrete_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bFormatType;
+	__le16 wMaxBitRate;
+	__le16 wSamplesPerFrame;
+	__u8 bSamFreqType;
+	__u8 tSamFreq[][3];
+} __attribute__((packed));
+
+struct uac_format_type_ii_ext_descriptor {
+	__u8 bLength;
+	__u8 bDescriptorType;
+	__u8 bDescriptorSubtype;
+	__u8 bFormatType;
+	__u16 wMaxBitRate;
+	__u16 wSamplesPerFrame;
+	__u8 bHeaderLength;
+	__u8 bSideBandProtocol;
+} __attribute__((packed));
+
+/* type III */
+#define UAC_FORMAT_TYPE_III_IEC1937_AC3	0x2001
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG1_LAYER1	0x2002
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_NOEXT	0x2003
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_EXT	0x2004
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER1_LS	0x2005
+#define UAC_FORMAT_TYPE_III_IEC1937_MPEG2_LAYER23_LS	0x2006
+
+/* Formats - A.2 Format Type Codes */
+#define UAC_FORMAT_TYPE_UNDEFINED	0x0
+#define UAC_FORMAT_TYPE_I		0x1
+#define UAC_FORMAT_TYPE_II		0x2
+#define UAC_FORMAT_TYPE_III		0x3
+#define UAC_EXT_FORMAT_TYPE_I		0x81
+#define UAC_EXT_FORMAT_TYPE_II		0x82
+#define UAC_EXT_FORMAT_TYPE_III		0x83
+
+struct uac_iso_endpoint_descriptor {
+	__u8  bLength;			/* in bytes: 7 */
+	__u8  bDescriptorType;		/* USB_DT_CS_ENDPOINT */
+	__u8  bDescriptorSubtype;	/* EP_GENERAL */
+	__u8  bmAttributes;
+	__u8  bLockDelayUnits;
+	__le16 wLockDelay;
+} __attribute__((packed));
+#define UAC_ISO_ENDPOINT_DESC_SIZE	7
+
+#define UAC_EP_CS_ATTR_SAMPLE_RATE	0x01
+#define UAC_EP_CS_ATTR_PITCH_CONTROL	0x02
+#define UAC_EP_CS_ATTR_FILL_MAX		0x80
+
+/* status word format (3.7.1.1) */
+
+#define UAC1_STATUS_TYPE_ORIG_MASK		0x0f
+#define UAC1_STATUS_TYPE_ORIG_AUDIO_CONTROL_IF	0x0
+#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_IF	0x1
+#define UAC1_STATUS_TYPE_ORIG_AUDIO_STREAM_EP	0x2
+
+#define UAC1_STATUS_TYPE_IRQ_PENDING		(1 << 7)
+#define UAC1_STATUS_TYPE_MEM_CHANGED		(1 << 6)
+
+struct uac1_status_word {
+	__u8 bStatusType;
+	__u8 bOriginator;
+} __attribute__((packed));
+
+
+#endif /* _UAPI__LINUX_USB_AUDIO_H */
diff --git a/include/linux/usb/cdc.h b/include/uapi/linux/usb/cdc.h
similarity index 100%
rename from include/linux/usb/cdc.h
rename to include/uapi/linux/usb/cdc.h
diff --git a/include/linux/usb/ch11.h b/include/uapi/linux/usb/ch11.h
similarity index 100%
rename from include/linux/usb/ch11.h
rename to include/uapi/linux/usb/ch11.h
diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
new file mode 100644
index 0000000..5059847
--- /dev/null
+++ b/include/uapi/linux/usb/ch9.h
@@ -0,0 +1,993 @@
+/*
+ * This file holds USB constants and structures that are needed for
+ * USB device APIs.  These are used by the USB device model, which is
+ * defined in chapter 9 of the USB 2.0 specification and in the
+ * Wireless USB 1.0 (spread around).  Linux has several APIs in C that
+ * need these:
+ *
+ * - the master/host side Linux-USB kernel driver API;
+ * - the "usbfs" user space API; and
+ * - the Linux "gadget" slave/device/peripheral side driver API.
+ *
+ * USB 2.0 adds an additional "On The Go" (OTG) mode, which lets systems
+ * act either as a USB master/host or as a USB slave/device.  That means
+ * the master and slave side APIs benefit from working well together.
+ *
+ * There's also "Wireless USB", using low power short range radios for
+ * peripheral interconnection but otherwise building on the USB framework.
+ *
+ * Note all descriptors are declared '__attribute__((packed))' so that:
+ *
+ * [a] they never get padded, either internally (USB spec writers
+ *     probably handled that) or externally;
+ *
+ * [b] so that accessing bigger-than-a-bytes fields will never
+ *     generate bus errors on any platform, even when the location of
+ *     its descriptor inside a bundle isn't "naturally aligned", and
+ *
+ * [c] for consistency, removing all doubt even when it appears to
+ *     someone that the two other points are non-issues for that
+ *     particular descriptor type.
+ */
+
+#ifndef _UAPI__LINUX_USB_CH9_H
+#define _UAPI__LINUX_USB_CH9_H
+
+#include <linux/types.h>	/* __u8 etc */
+#include <asm/byteorder.h>	/* le16_to_cpu */
+
+/*-------------------------------------------------------------------------*/
+
+/* CONTROL REQUEST SUPPORT */
+
+/*
+ * USB directions
+ *
+ * This bit flag is used in endpoint descriptors' bEndpointAddress field.
+ * It's also one of three fields in control requests bRequestType.
+ */
+#define USB_DIR_OUT			0		/* to device */
+#define USB_DIR_IN			0x80		/* to host */
+
+/*
+ * USB types, the second of three bRequestType fields
+ */
+#define USB_TYPE_MASK			(0x03 << 5)
+#define USB_TYPE_STANDARD		(0x00 << 5)
+#define USB_TYPE_CLASS			(0x01 << 5)
+#define USB_TYPE_VENDOR			(0x02 << 5)
+#define USB_TYPE_RESERVED		(0x03 << 5)
+
+/*
+ * USB recipients, the third of three bRequestType fields
+ */
+#define USB_RECIP_MASK			0x1f
+#define USB_RECIP_DEVICE		0x00
+#define USB_RECIP_INTERFACE		0x01
+#define USB_RECIP_ENDPOINT		0x02
+#define USB_RECIP_OTHER			0x03
+/* From Wireless USB 1.0 */
+#define USB_RECIP_PORT			0x04
+#define USB_RECIP_RPIPE		0x05
+
+/*
+ * Standard requests, for the bRequest field of a SETUP packet.
+ *
+ * These are qualified by the bRequestType field, so that for example
+ * TYPE_CLASS or TYPE_VENDOR specific feature flags could be retrieved
+ * by a GET_STATUS request.
+ */
+#define USB_REQ_GET_STATUS		0x00
+#define USB_REQ_CLEAR_FEATURE		0x01
+#define USB_REQ_SET_FEATURE		0x03
+#define USB_REQ_SET_ADDRESS		0x05
+#define USB_REQ_GET_DESCRIPTOR		0x06
+#define USB_REQ_SET_DESCRIPTOR		0x07
+#define USB_REQ_GET_CONFIGURATION	0x08
+#define USB_REQ_SET_CONFIGURATION	0x09
+#define USB_REQ_GET_INTERFACE		0x0A
+#define USB_REQ_SET_INTERFACE		0x0B
+#define USB_REQ_SYNCH_FRAME		0x0C
+#define USB_REQ_SET_SEL			0x30
+#define USB_REQ_SET_ISOCH_DELAY		0x31
+
+#define USB_REQ_SET_ENCRYPTION		0x0D	/* Wireless USB */
+#define USB_REQ_GET_ENCRYPTION		0x0E
+#define USB_REQ_RPIPE_ABORT		0x0E
+#define USB_REQ_SET_HANDSHAKE		0x0F
+#define USB_REQ_RPIPE_RESET		0x0F
+#define USB_REQ_GET_HANDSHAKE		0x10
+#define USB_REQ_SET_CONNECTION		0x11
+#define USB_REQ_SET_SECURITY_DATA	0x12
+#define USB_REQ_GET_SECURITY_DATA	0x13
+#define USB_REQ_SET_WUSB_DATA		0x14
+#define USB_REQ_LOOPBACK_DATA_WRITE	0x15
+#define USB_REQ_LOOPBACK_DATA_READ	0x16
+#define USB_REQ_SET_INTERFACE_DS	0x17
+
+/* The Link Power Management (LPM) ECN defines USB_REQ_TEST_AND_SET command,
+ * used by hubs to put ports into a new L1 suspend state, except that it
+ * forgot to define its number ...
+ */
+
+/*
+ * USB feature flags are written using USB_REQ_{CLEAR,SET}_FEATURE, and
+ * are read as a bit array returned by USB_REQ_GET_STATUS.  (So there
+ * are at most sixteen features of each type.)  Hubs may also support a
+ * new USB_REQ_TEST_AND_SET_FEATURE to put ports into L1 suspend.
+ */
+#define USB_DEVICE_SELF_POWERED		0	/* (read only) */
+#define USB_DEVICE_REMOTE_WAKEUP	1	/* dev may initiate wakeup */
+#define USB_DEVICE_TEST_MODE		2	/* (wired high speed only) */
+#define USB_DEVICE_BATTERY		2	/* (wireless) */
+#define USB_DEVICE_B_HNP_ENABLE		3	/* (otg) dev may initiate HNP */
+#define USB_DEVICE_WUSB_DEVICE		3	/* (wireless)*/
+#define USB_DEVICE_A_HNP_SUPPORT	4	/* (otg) RH port supports HNP */
+#define USB_DEVICE_A_ALT_HNP_SUPPORT	5	/* (otg) other RH port does */
+#define USB_DEVICE_DEBUG_MODE		6	/* (special devices only) */
+
+/*
+ * Test Mode Selectors
+ * See USB 2.0 spec Table 9-7
+ */
+#define	TEST_J		1
+#define	TEST_K		2
+#define	TEST_SE0_NAK	3
+#define	TEST_PACKET	4
+#define	TEST_FORCE_EN	5
+
+/*
+ * New Feature Selectors as added by USB 3.0
+ * See USB 3.0 spec Table 9-6
+ */
+#define USB_DEVICE_U1_ENABLE	48	/* dev may initiate U1 transition */
+#define USB_DEVICE_U2_ENABLE	49	/* dev may initiate U2 transition */
+#define USB_DEVICE_LTM_ENABLE	50	/* dev may send LTM */
+#define USB_INTRF_FUNC_SUSPEND	0	/* function suspend */
+
+#define USB_INTR_FUNC_SUSPEND_OPT_MASK	0xFF00
+/*
+ * Suspend Options, Table 9-7 USB 3.0 spec
+ */
+#define USB_INTRF_FUNC_SUSPEND_LP	(1 << (8 + 0))
+#define USB_INTRF_FUNC_SUSPEND_RW	(1 << (8 + 1))
+
+#define USB_ENDPOINT_HALT		0	/* IN/OUT will STALL */
+
+/* Bit array elements as returned by the USB_REQ_GET_STATUS request. */
+#define USB_DEV_STAT_U1_ENABLED		2	/* transition into U1 state */
+#define USB_DEV_STAT_U2_ENABLED		3	/* transition into U2 state */
+#define USB_DEV_STAT_LTM_ENABLED	4	/* Latency tolerance messages */
+
+/**
+ * struct usb_ctrlrequest - SETUP data for a USB device control request
+ * @bRequestType: matches the USB bmRequestType field
+ * @bRequest: matches the USB bRequest field
+ * @wValue: matches the USB wValue field (le16 byte order)
+ * @wIndex: matches the USB wIndex field (le16 byte order)
+ * @wLength: matches the USB wLength field (le16 byte order)
+ *
+ * This structure is used to send control requests to a USB device.  It matches
+ * the different fields of the USB 2.0 Spec section 9.3, table 9-2.  See the
+ * USB spec for a fuller description of the different fields, and what they are
+ * used for.
+ *
+ * Note that the driver for any interface can issue control requests.
+ * For most devices, interfaces don't coordinate with each other, so
+ * such requests may be made at any time.
+ */
+struct usb_ctrlrequest {
+	__u8 bRequestType;
+	__u8 bRequest;
+	__le16 wValue;
+	__le16 wIndex;
+	__le16 wLength;
+} __attribute__ ((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * STANDARD DESCRIPTORS ... as returned by GET_DESCRIPTOR, or
+ * (rarely) accepted by SET_DESCRIPTOR.
+ *
+ * Note that all multi-byte values here are encoded in little endian
+ * byte order "on the wire".  Within the kernel and when exposed
+ * through the Linux-USB APIs, they are not converted to cpu byte
+ * order; it is the responsibility of the client code to do this.
+ * The single exception is when device and configuration descriptors (but
+ * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
+ * in this case the fields are converted to host endianness by the kernel.
+ */
+
+/*
+ * Descriptor types ... USB 2.0 spec table 9.5
+ */
+#define USB_DT_DEVICE			0x01
+#define USB_DT_CONFIG			0x02
+#define USB_DT_STRING			0x03
+#define USB_DT_INTERFACE		0x04
+#define USB_DT_ENDPOINT			0x05
+#define USB_DT_DEVICE_QUALIFIER		0x06
+#define USB_DT_OTHER_SPEED_CONFIG	0x07
+#define USB_DT_INTERFACE_POWER		0x08
+/* these are from a minor usb 2.0 revision (ECN) */
+#define USB_DT_OTG			0x09
+#define USB_DT_DEBUG			0x0a
+#define USB_DT_INTERFACE_ASSOCIATION	0x0b
+/* these are from the Wireless USB spec */
+#define USB_DT_SECURITY			0x0c
+#define USB_DT_KEY			0x0d
+#define USB_DT_ENCRYPTION_TYPE		0x0e
+#define USB_DT_BOS			0x0f
+#define USB_DT_DEVICE_CAPABILITY	0x10
+#define USB_DT_WIRELESS_ENDPOINT_COMP	0x11
+#define USB_DT_WIRE_ADAPTER		0x21
+#define USB_DT_RPIPE			0x22
+#define USB_DT_CS_RADIO_CONTROL		0x23
+/* From the T10 UAS specification */
+#define USB_DT_PIPE_USAGE		0x24
+/* From the USB 3.0 spec */
+#define	USB_DT_SS_ENDPOINT_COMP		0x30
+
+/* Conventional codes for class-specific descriptors.  The convention is
+ * defined in the USB "Common Class" Spec (3.11).  Individual class specs
+ * are authoritative for their usage, not the "common class" writeup.
+ */
+#define USB_DT_CS_DEVICE		(USB_TYPE_CLASS | USB_DT_DEVICE)
+#define USB_DT_CS_CONFIG		(USB_TYPE_CLASS | USB_DT_CONFIG)
+#define USB_DT_CS_STRING		(USB_TYPE_CLASS | USB_DT_STRING)
+#define USB_DT_CS_INTERFACE		(USB_TYPE_CLASS | USB_DT_INTERFACE)
+#define USB_DT_CS_ENDPOINT		(USB_TYPE_CLASS | USB_DT_ENDPOINT)
+
+/* All standard descriptors have these 2 fields at the beginning */
+struct usb_descriptor_header {
+	__u8  bLength;
+	__u8  bDescriptorType;
+} __attribute__ ((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEVICE: Device descriptor */
+struct usb_device_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__le16 bcdUSB;
+	__u8  bDeviceClass;
+	__u8  bDeviceSubClass;
+	__u8  bDeviceProtocol;
+	__u8  bMaxPacketSize0;
+	__le16 idVendor;
+	__le16 idProduct;
+	__le16 bcdDevice;
+	__u8  iManufacturer;
+	__u8  iProduct;
+	__u8  iSerialNumber;
+	__u8  bNumConfigurations;
+} __attribute__ ((packed));
+
+#define USB_DT_DEVICE_SIZE		18
+
+
+/*
+ * Device and/or Interface Class codes
+ * as found in bDeviceClass or bInterfaceClass
+ * and defined by www.usb.org documents
+ */
+#define USB_CLASS_PER_INTERFACE		0	/* for DeviceClass */
+#define USB_CLASS_AUDIO			1
+#define USB_CLASS_COMM			2
+#define USB_CLASS_HID			3
+#define USB_CLASS_PHYSICAL		5
+#define USB_CLASS_STILL_IMAGE		6
+#define USB_CLASS_PRINTER		7
+#define USB_CLASS_MASS_STORAGE		8
+#define USB_CLASS_HUB			9
+#define USB_CLASS_CDC_DATA		0x0a
+#define USB_CLASS_CSCID			0x0b	/* chip+ smart card */
+#define USB_CLASS_CONTENT_SEC		0x0d	/* content security */
+#define USB_CLASS_VIDEO			0x0e
+#define USB_CLASS_WIRELESS_CONTROLLER	0xe0
+#define USB_CLASS_MISC			0xef
+#define USB_CLASS_APP_SPEC		0xfe
+#define USB_CLASS_VENDOR_SPEC		0xff
+
+#define USB_SUBCLASS_VENDOR_SPEC	0xff
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_CONFIG: Configuration descriptor information.
+ *
+ * USB_DT_OTHER_SPEED_CONFIG is the same descriptor, except that the
+ * descriptor type is different.  Highspeed-capable devices can look
+ * different depending on what speed they're currently running.  Only
+ * devices with a USB_DT_DEVICE_QUALIFIER have any OTHER_SPEED_CONFIG
+ * descriptors.
+ */
+struct usb_config_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__le16 wTotalLength;
+	__u8  bNumInterfaces;
+	__u8  bConfigurationValue;
+	__u8  iConfiguration;
+	__u8  bmAttributes;
+	__u8  bMaxPower;
+} __attribute__ ((packed));
+
+#define USB_DT_CONFIG_SIZE		9
+
+/* from config descriptor bmAttributes */
+#define USB_CONFIG_ATT_ONE		(1 << 7)	/* must be set */
+#define USB_CONFIG_ATT_SELFPOWER	(1 << 6)	/* self powered */
+#define USB_CONFIG_ATT_WAKEUP		(1 << 5)	/* can wakeup */
+#define USB_CONFIG_ATT_BATTERY		(1 << 4)	/* battery powered */
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_STRING: String descriptor */
+struct usb_string_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__le16 wData[1];		/* UTF-16LE encoded */
+} __attribute__ ((packed));
+
+/* note that "string" zero is special, it holds language codes that
+ * the device supports, not Unicode characters.
+ */
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_INTERFACE: Interface descriptor */
+struct usb_interface_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bInterfaceNumber;
+	__u8  bAlternateSetting;
+	__u8  bNumEndpoints;
+	__u8  bInterfaceClass;
+	__u8  bInterfaceSubClass;
+	__u8  bInterfaceProtocol;
+	__u8  iInterface;
+} __attribute__ ((packed));
+
+#define USB_DT_INTERFACE_SIZE		9
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_ENDPOINT: Endpoint descriptor */
+struct usb_endpoint_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bEndpointAddress;
+	__u8  bmAttributes;
+	__le16 wMaxPacketSize;
+	__u8  bInterval;
+
+	/* NOTE:  these two are _only_ in audio endpoints. */
+	/* use USB_DT_ENDPOINT*_SIZE in bLength, not sizeof. */
+	__u8  bRefresh;
+	__u8  bSynchAddress;
+} __attribute__ ((packed));
+
+#define USB_DT_ENDPOINT_SIZE		7
+#define USB_DT_ENDPOINT_AUDIO_SIZE	9	/* Audio extension */
+
+
+/*
+ * Endpoints
+ */
+#define USB_ENDPOINT_NUMBER_MASK	0x0f	/* in bEndpointAddress */
+#define USB_ENDPOINT_DIR_MASK		0x80
+
+#define USB_ENDPOINT_XFERTYPE_MASK	0x03	/* in bmAttributes */
+#define USB_ENDPOINT_XFER_CONTROL	0
+#define USB_ENDPOINT_XFER_ISOC		1
+#define USB_ENDPOINT_XFER_BULK		2
+#define USB_ENDPOINT_XFER_INT		3
+#define USB_ENDPOINT_MAX_ADJUSTABLE	0x80
+
+/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
+#define USB_ENDPOINT_INTRTYPE		0x30
+#define USB_ENDPOINT_INTR_PERIODIC	(0 << 4)
+#define USB_ENDPOINT_INTR_NOTIFICATION	(1 << 4)
+
+#define USB_ENDPOINT_SYNCTYPE		0x0c
+#define USB_ENDPOINT_SYNC_NONE		(0 << 2)
+#define USB_ENDPOINT_SYNC_ASYNC		(1 << 2)
+#define USB_ENDPOINT_SYNC_ADAPTIVE	(2 << 2)
+#define USB_ENDPOINT_SYNC_SYNC		(3 << 2)
+
+#define USB_ENDPOINT_USAGE_MASK		0x30
+#define USB_ENDPOINT_USAGE_DATA		0x00
+#define USB_ENDPOINT_USAGE_FEEDBACK	0x10
+#define USB_ENDPOINT_USAGE_IMPLICIT_FB	0x20	/* Implicit feedback Data endpoint */
+
+/*-------------------------------------------------------------------------*/
+
+/**
+ * usb_endpoint_num - get the endpoint's number
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's number: 0 to 15.
+ */
+static inline int usb_endpoint_num(const struct usb_endpoint_descriptor *epd)
+{
+	return epd->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK;
+}
+
+/**
+ * usb_endpoint_type - get the endpoint's transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns one of USB_ENDPOINT_XFER_{CONTROL, ISOC, BULK, INT} according
+ * to @epd's transfer type.
+ */
+static inline int usb_endpoint_type(const struct usb_endpoint_descriptor *epd)
+{
+	return epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
+}
+
+/**
+ * usb_endpoint_dir_in - check if the endpoint has IN direction
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type IN, otherwise it returns false.
+ */
+static inline int usb_endpoint_dir_in(const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_IN);
+}
+
+/**
+ * usb_endpoint_dir_out - check if the endpoint has OUT direction
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type OUT, otherwise it returns false.
+ */
+static inline int usb_endpoint_dir_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bEndpointAddress & USB_ENDPOINT_DIR_MASK) == USB_DIR_OUT);
+}
+
+/**
+ * usb_endpoint_xfer_bulk - check if the endpoint has bulk transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type bulk, otherwise it returns false.
+ */
+static inline int usb_endpoint_xfer_bulk(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_BULK);
+}
+
+/**
+ * usb_endpoint_xfer_control - check if the endpoint has control transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type control, otherwise it returns false.
+ */
+static inline int usb_endpoint_xfer_control(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_CONTROL);
+}
+
+/**
+ * usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type interrupt, otherwise it returns
+ * false.
+ */
+static inline int usb_endpoint_xfer_int(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_INT);
+}
+
+/**
+ * usb_endpoint_xfer_isoc - check if the endpoint has isochronous transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type isochronous, otherwise it returns
+ * false.
+ */
+static inline int usb_endpoint_xfer_isoc(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		USB_ENDPOINT_XFER_ISOC);
+}
+
+/**
+ * usb_endpoint_is_bulk_in - check if the endpoint is bulk IN
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has bulk transfer type and IN direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_bulk_in(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_in(epd);
+}
+
+/**
+ * usb_endpoint_is_bulk_out - check if the endpoint is bulk OUT
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has bulk transfer type and OUT direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_bulk_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return usb_endpoint_xfer_bulk(epd) && usb_endpoint_dir_out(epd);
+}
+
+/**
+ * usb_endpoint_is_int_in - check if the endpoint is interrupt IN
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has interrupt transfer type and IN direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_int_in(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_in(epd);
+}
+
+/**
+ * usb_endpoint_is_int_out - check if the endpoint is interrupt OUT
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has interrupt transfer type and OUT direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_int_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return usb_endpoint_xfer_int(epd) && usb_endpoint_dir_out(epd);
+}
+
+/**
+ * usb_endpoint_is_isoc_in - check if the endpoint is isochronous IN
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has isochronous transfer type and IN direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_isoc_in(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_in(epd);
+}
+
+/**
+ * usb_endpoint_is_isoc_out - check if the endpoint is isochronous OUT
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint has isochronous transfer type and OUT direction,
+ * otherwise it returns false.
+ */
+static inline int usb_endpoint_is_isoc_out(
+				const struct usb_endpoint_descriptor *epd)
+{
+	return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
+}
+
+/**
+ * usb_endpoint_maxp - get endpoint's max packet size
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's max packet
+ */
+static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
+{
+	return __le16_to_cpu(epd->wMaxPacketSize);
+}
+
+static inline int usb_endpoint_interrupt_type(
+		const struct usb_endpoint_descriptor *epd)
+{
+	return epd->bmAttributes & USB_ENDPOINT_INTRTYPE;
+}
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
+struct usb_ss_ep_comp_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bMaxBurst;
+	__u8  bmAttributes;
+	__le16 wBytesPerInterval;
+} __attribute__ ((packed));
+
+#define USB_DT_SS_EP_COMP_SIZE		6
+
+/* Bits 4:0 of bmAttributes if this is a bulk endpoint */
+static inline int
+usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
+{
+	int		max_streams;
+
+	if (!comp)
+		return 0;
+
+	max_streams = comp->bmAttributes & 0x1f;
+
+	if (!max_streams)
+		return 0;
+
+	max_streams = 1 << max_streams;
+
+	return max_streams;
+}
+
+/* Bits 1:0 of bmAttributes if this is an isoc endpoint */
+#define USB_SS_MULT(p)			(1 + ((p) & 0x3))
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEVICE_QUALIFIER: Device Qualifier descriptor */
+struct usb_qualifier_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__le16 bcdUSB;
+	__u8  bDeviceClass;
+	__u8  bDeviceSubClass;
+	__u8  bDeviceProtocol;
+	__u8  bMaxPacketSize0;
+	__u8  bNumConfigurations;
+	__u8  bRESERVED;
+} __attribute__ ((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_OTG (from OTG 1.0a supplement) */
+struct usb_otg_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bmAttributes;	/* support for HNP, SRP, etc */
+} __attribute__ ((packed));
+
+/* from usb_otg_descriptor.bmAttributes */
+#define USB_OTG_SRP		(1 << 0)
+#define USB_OTG_HNP		(1 << 1)	/* swap host/device roles */
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEBUG:  for special highspeed devices, replacing serial console */
+struct usb_debug_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	/* bulk endpoints with 8 byte maxpacket */
+	__u8  bDebugInEndpoint;
+	__u8  bDebugOutEndpoint;
+} __attribute__((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_INTERFACE_ASSOCIATION: groups interfaces */
+struct usb_interface_assoc_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bFirstInterface;
+	__u8  bInterfaceCount;
+	__u8  bFunctionClass;
+	__u8  bFunctionSubClass;
+	__u8  bFunctionProtocol;
+	__u8  iFunction;
+} __attribute__ ((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_SECURITY:  group of wireless security descriptors, including
+ * encryption types available for setting up a CC/association.
+ */
+struct usb_security_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__le16 wTotalLength;
+	__u8  bNumEncryptionTypes;
+} __attribute__((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_KEY:  used with {GET,SET}_SECURITY_DATA; only public keys
+ * may be retrieved.
+ */
+struct usb_key_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  tTKID[3];
+	__u8  bReserved;
+	__u8  bKeyData[0];
+} __attribute__((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_ENCRYPTION_TYPE:  bundled in DT_SECURITY groups */
+struct usb_encryption_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bEncryptionType;
+#define	USB_ENC_TYPE_UNSECURE		0
+#define	USB_ENC_TYPE_WIRED		1	/* non-wireless mode */
+#define	USB_ENC_TYPE_CCM_1		2	/* aes128/cbc session */
+#define	USB_ENC_TYPE_RSA_1		3	/* rsa3072/sha1 auth */
+	__u8  bEncryptionValue;		/* use in SET_ENCRYPTION */
+	__u8  bAuthKeyIndex;
+} __attribute__((packed));
+
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_BOS:  group of device-level capabilities */
+struct usb_bos_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__le16 wTotalLength;
+	__u8  bNumDeviceCaps;
+} __attribute__((packed));
+
+#define USB_DT_BOS_SIZE		5
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_DEVICE_CAPABILITY:  grouped with BOS */
+struct usb_dev_cap_header {
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__u8  bDevCapabilityType;
+} __attribute__((packed));
+
+#define	USB_CAP_TYPE_WIRELESS_USB	1
+
+struct usb_wireless_cap_descriptor {	/* Ultra Wide Band */
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__u8  bDevCapabilityType;
+
+	__u8  bmAttributes;
+#define	USB_WIRELESS_P2P_DRD		(1 << 1)
+#define	USB_WIRELESS_BEACON_MASK	(3 << 2)
+#define	USB_WIRELESS_BEACON_SELF	(1 << 2)
+#define	USB_WIRELESS_BEACON_DIRECTED	(2 << 2)
+#define	USB_WIRELESS_BEACON_NONE	(3 << 2)
+	__le16 wPHYRates;	/* bit rates, Mbps */
+#define	USB_WIRELESS_PHY_53		(1 << 0)	/* always set */
+#define	USB_WIRELESS_PHY_80		(1 << 1)
+#define	USB_WIRELESS_PHY_107		(1 << 2)	/* always set */
+#define	USB_WIRELESS_PHY_160		(1 << 3)
+#define	USB_WIRELESS_PHY_200		(1 << 4)	/* always set */
+#define	USB_WIRELESS_PHY_320		(1 << 5)
+#define	USB_WIRELESS_PHY_400		(1 << 6)
+#define	USB_WIRELESS_PHY_480		(1 << 7)
+	__u8  bmTFITXPowerInfo;	/* TFI power levels */
+	__u8  bmFFITXPowerInfo;	/* FFI power levels */
+	__le16 bmBandGroup;
+	__u8  bReserved;
+} __attribute__((packed));
+
+/* USB 2.0 Extension descriptor */
+#define	USB_CAP_TYPE_EXT		2
+
+struct usb_ext_cap_descriptor {		/* Link Power Management */
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__u8  bDevCapabilityType;
+	__le32 bmAttributes;
+#define USB_LPM_SUPPORT			(1 << 1)	/* supports LPM */
+#define USB_BESL_SUPPORT		(1 << 2)	/* supports BESL */
+#define USB_BESL_BASELINE_VALID		(1 << 3)	/* Baseline BESL valid*/
+#define USB_BESL_DEEP_VALID		(1 << 4)	/* Deep BESL valid */
+#define USB_GET_BESL_BASELINE(p)	(((p) & (0xf << 8)) >> 8)
+#define USB_GET_BESL_DEEP(p)		(((p) & (0xf << 12)) >> 12)
+} __attribute__((packed));
+
+#define USB_DT_USB_EXT_CAP_SIZE	7
+
+/*
+ * SuperSpeed USB Capability descriptor: Defines the set of SuperSpeed USB
+ * specific device level capabilities
+ */
+#define		USB_SS_CAP_TYPE		3
+struct usb_ss_cap_descriptor {		/* Link Power Management */
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__u8  bDevCapabilityType;
+	__u8  bmAttributes;
+#define USB_LTM_SUPPORT			(1 << 1) /* supports LTM */
+	__le16 wSpeedSupported;
+#define USB_LOW_SPEED_OPERATION		(1)	 /* Low speed operation */
+#define USB_FULL_SPEED_OPERATION	(1 << 1) /* Full speed operation */
+#define USB_HIGH_SPEED_OPERATION	(1 << 2) /* High speed operation */
+#define USB_5GBPS_OPERATION		(1 << 3) /* Operation at 5Gbps */
+	__u8  bFunctionalitySupport;
+	__u8  bU1devExitLat;
+	__le16 bU2DevExitLat;
+} __attribute__((packed));
+
+#define USB_DT_USB_SS_CAP_SIZE	10
+
+/*
+ * Container ID Capability descriptor: Defines the instance unique ID used to
+ * identify the instance across all operating modes
+ */
+#define	CONTAINER_ID_TYPE	4
+struct usb_ss_container_id_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__u8  bDevCapabilityType;
+	__u8  bReserved;
+	__u8  ContainerID[16]; /* 128-bit number */
+} __attribute__((packed));
+
+#define USB_DT_USB_SS_CONTN_ID_SIZE	20
+/*-------------------------------------------------------------------------*/
+
+/* USB_DT_WIRELESS_ENDPOINT_COMP:  companion descriptor associated with
+ * each endpoint descriptor for a wireless device
+ */
+struct usb_wireless_ep_comp_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bMaxBurst;
+	__u8  bMaxSequence;
+	__le16 wMaxStreamDelay;
+	__le16 wOverTheAirPacketSize;
+	__u8  bOverTheAirInterval;
+	__u8  bmCompAttributes;
+#define USB_ENDPOINT_SWITCH_MASK	0x03	/* in bmCompAttributes */
+#define USB_ENDPOINT_SWITCH_NO		0
+#define USB_ENDPOINT_SWITCH_SWITCH	1
+#define USB_ENDPOINT_SWITCH_SCALE	2
+} __attribute__((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_REQ_SET_HANDSHAKE is a four-way handshake used between a wireless
+ * host and a device for connection set up, mutual authentication, and
+ * exchanging short lived session keys.  The handshake depends on a CC.
+ */
+struct usb_handshake {
+	__u8 bMessageNumber;
+	__u8 bStatus;
+	__u8 tTKID[3];
+	__u8 bReserved;
+	__u8 CDID[16];
+	__u8 nonce[16];
+	__u8 MIC[8];
+} __attribute__((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/* USB_REQ_SET_CONNECTION modifies or revokes a connection context (CC).
+ * A CC may also be set up using non-wireless secure channels (including
+ * wired USB!), and some devices may support CCs with multiple hosts.
+ */
+struct usb_connection_context {
+	__u8 CHID[16];		/* persistent host id */
+	__u8 CDID[16];		/* device id (unique w/in host context) */
+	__u8 CK[16];		/* connection key */
+} __attribute__((packed));
+
+/*-------------------------------------------------------------------------*/
+
+/* USB 2.0 defines three speeds, here's how Linux identifies them */
+
+enum usb_device_speed {
+	USB_SPEED_UNKNOWN = 0,			/* enumerating */
+	USB_SPEED_LOW, USB_SPEED_FULL,		/* usb 1.1 */
+	USB_SPEED_HIGH,				/* usb 2.0 */
+	USB_SPEED_WIRELESS,			/* wireless (usb 2.5) */
+	USB_SPEED_SUPER,			/* usb 3.0 */
+};
+
+
+enum usb_device_state {
+	/* NOTATTACHED isn't in the USB spec, and this state acts
+	 * the same as ATTACHED ... but it's clearer this way.
+	 */
+	USB_STATE_NOTATTACHED = 0,
+
+	/* chapter 9 and authentication (wireless) device states */
+	USB_STATE_ATTACHED,
+	USB_STATE_POWERED,			/* wired */
+	USB_STATE_RECONNECTING,			/* auth */
+	USB_STATE_UNAUTHENTICATED,		/* auth */
+	USB_STATE_DEFAULT,			/* limited function */
+	USB_STATE_ADDRESS,
+	USB_STATE_CONFIGURED,			/* most functions */
+
+	USB_STATE_SUSPENDED
+
+	/* NOTE:  there are actually four different SUSPENDED
+	 * states, returning to POWERED, DEFAULT, ADDRESS, or
+	 * CONFIGURED respectively when SOF tokens flow again.
+	 * At this level there's no difference between L1 and L2
+	 * suspend states.  (L2 being original USB 1.1 suspend.)
+	 */
+};
+
+enum usb3_link_state {
+	USB3_LPM_U0 = 0,
+	USB3_LPM_U1,
+	USB3_LPM_U2,
+	USB3_LPM_U3
+};
+
+/*
+ * A U1 timeout of 0x0 means the parent hub will reject any transitions to U1.
+ * 0xff means the parent hub will accept transitions to U1, but will not
+ * initiate a transition.
+ *
+ * A U1 timeout of 0x1 to 0x7F also causes the hub to initiate a transition to
+ * U1 after that many microseconds.  Timeouts of 0x80 to 0xFE are reserved
+ * values.
+ *
+ * A U2 timeout of 0x0 means the parent hub will reject any transitions to U2.
+ * 0xff means the parent hub will accept transitions to U2, but will not
+ * initiate a transition.
+ *
+ * A U2 timeout of 0x1 to 0xFE also causes the hub to initiate a transition to
+ * U2 after N*256 microseconds.  Therefore a U2 timeout value of 0x1 means a U2
+ * idle timer of 256 microseconds, 0x2 means 512 microseconds, 0xFE means
+ * 65.024ms.
+ */
+#define USB3_LPM_DISABLED		0x0
+#define USB3_LPM_U1_MAX_TIMEOUT		0x7F
+#define USB3_LPM_U2_MAX_TIMEOUT		0xFE
+#define USB3_LPM_DEVICE_INITIATED	0xFF
+
+struct usb_set_sel_req {
+	__u8	u1_sel;
+	__u8	u1_pel;
+	__le16	u2_sel;
+	__le16	u2_pel;
+} __attribute__ ((packed));
+
+/*
+ * The Set System Exit Latency control transfer provides one byte each for
+ * U1 SEL and U1 PEL, so the max exit latency is 0xFF.  U2 SEL and U2 PEL each
+ * are two bytes long.
+ */
+#define USB3_LPM_MAX_U1_SEL_PEL		0xFF
+#define USB3_LPM_MAX_U2_SEL_PEL		0xFFFF
+
+/*-------------------------------------------------------------------------*/
+
+/*
+ * As per USB compliance update, a device that is actively drawing
+ * more than 100mA from USB must report itself as bus-powered in
+ * the GetStatus(DEVICE) call.
+ * http://compliance.usb.org/index.asp?UpdateFile=Electrical&Format=Standard#34
+ */
+#define USB_SELF_POWER_VBUS_MAX_DRAW		100
+
+#endif /* _UAPI__LINUX_USB_CH9_H */
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
new file mode 100644
index 0000000..d6b0128
--- /dev/null
+++ b/include/uapi/linux/usb/functionfs.h
@@ -0,0 +1,169 @@
+#ifndef _UAPI__LINUX_FUNCTIONFS_H__
+#define _UAPI__LINUX_FUNCTIONFS_H__
+
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#include <linux/usb/ch9.h>
+
+
+enum {
+	FUNCTIONFS_DESCRIPTORS_MAGIC = 1,
+	FUNCTIONFS_STRINGS_MAGIC     = 2
+};
+
+
+#ifndef __KERNEL__
+
+/* Descriptor of an non-audio endpoint */
+struct usb_endpoint_descriptor_no_audio {
+	__u8  bLength;
+	__u8  bDescriptorType;
+
+	__u8  bEndpointAddress;
+	__u8  bmAttributes;
+	__le16 wMaxPacketSize;
+	__u8  bInterval;
+} __attribute__((packed));
+
+
+/*
+ * All numbers must be in little endian order.
+ */
+
+struct usb_functionfs_descs_head {
+	__le32 magic;
+	__le32 length;
+	__le32 fs_count;
+	__le32 hs_count;
+} __attribute__((packed));
+
+/*
+ * Descriptors format:
+ *
+ * | off | name      | type         | description                          |
+ * |-----+-----------+--------------+--------------------------------------|
+ * |   0 | magic     | LE32         | FUNCTIONFS_{FS,HS}_DESCRIPTORS_MAGIC |
+ * |   4 | length    | LE32         | length of the whole data chunk       |
+ * |   8 | fs_count  | LE32         | number of full-speed descriptors     |
+ * |  12 | hs_count  | LE32         | number of high-speed descriptors     |
+ * |  16 | fs_descrs | Descriptor[] | list of full-speed descriptors       |
+ * |     | hs_descrs | Descriptor[] | list of high-speed descriptors       |
+ *
+ * descs are just valid USB descriptors and have the following format:
+ *
+ * | off | name            | type | description              |
+ * |-----+-----------------+------+--------------------------|
+ * |   0 | bLength         | U8   | length of the descriptor |
+ * |   1 | bDescriptorType | U8   | descriptor type          |
+ * |   2 | payload         |      | descriptor's payload     |
+ */
+
+struct usb_functionfs_strings_head {
+	__le32 magic;
+	__le32 length;
+	__le32 str_count;
+	__le32 lang_count;
+} __attribute__((packed));
+
+/*
+ * Strings format:
+ *
+ * | off | name       | type                  | description                |
+ * |-----+------------+-----------------------+----------------------------|
+ * |   0 | magic      | LE32                  | FUNCTIONFS_STRINGS_MAGIC   |
+ * |   4 | length     | LE32                  | length of the data chunk   |
+ * |   8 | str_count  | LE32                  | number of strings          |
+ * |  12 | lang_count | LE32                  | number of languages        |
+ * |  16 | stringtab  | StringTab[lang_count] | table of strings per lang  |
+ *
+ * For each language there is one stringtab entry (ie. there are lang_count
+ * stringtab entires).  Each StringTab has following format:
+ *
+ * | off | name    | type              | description                        |
+ * |-----+---------+-------------------+------------------------------------|
+ * |   0 | lang    | LE16              | language code                      |
+ * |   2 | strings | String[str_count] | array of strings in given language |
+ *
+ * For each string there is one strings entry (ie. there are str_count
+ * string entries).  Each String is a NUL terminated string encoded in
+ * UTF-8.
+ */
+
+#endif
+
+
+/*
+ * Events are delivered on the ep0 file descriptor, when the user mode driver
+ * reads from this file descriptor after writing the descriptors.  Don't
+ * stop polling this descriptor.
+ */
+
+enum usb_functionfs_event_type {
+	FUNCTIONFS_BIND,
+	FUNCTIONFS_UNBIND,
+
+	FUNCTIONFS_ENABLE,
+	FUNCTIONFS_DISABLE,
+
+	FUNCTIONFS_SETUP,
+
+	FUNCTIONFS_SUSPEND,
+	FUNCTIONFS_RESUME
+};
+
+/* NOTE:  this structure must stay the same size and layout on
+ * both 32-bit and 64-bit kernels.
+ */
+struct usb_functionfs_event {
+	union {
+		/* SETUP: packet; DATA phase i/o precedes next event
+		 *(setup.bmRequestType & USB_DIR_IN) flags direction */
+		struct usb_ctrlrequest	setup;
+	} __attribute__((packed)) u;
+
+	/* enum usb_functionfs_event_type */
+	__u8				type;
+	__u8				_pad[3];
+} __attribute__((packed));
+
+
+/* Endpoint ioctls */
+/* The same as in gadgetfs */
+
+/* IN transfers may be reported to the gadget driver as complete
+ *	when the fifo is loaded, before the host reads the data;
+ * OUT transfers may be reported to the host's "client" driver as
+ *	complete when they're sitting in the FIFO unread.
+ * THIS returns how many bytes are "unclaimed" in the endpoint fifo
+ * (needed for precise fault handling, when the hardware allows it)
+ */
+#define	FUNCTIONFS_FIFO_STATUS	_IO('g', 1)
+
+/* discards any unclaimed data in the fifo. */
+#define	FUNCTIONFS_FIFO_FLUSH	_IO('g', 2)
+
+/* resets endpoint halt+toggle; used to implement set_interface.
+ * some hardware (like pxa2xx) can't support this.
+ */
+#define	FUNCTIONFS_CLEAR_HALT	_IO('g', 3)
+
+/* Specific for functionfs */
+
+/*
+ * Returns reverse mapping of an interface.  Called on EP0.  If there
+ * is no such interface returns -EDOM.  If function is not active
+ * returns -ENODEV.
+ */
+#define	FUNCTIONFS_INTERFACE_REVMAP	_IO('g', 128)
+
+/*
+ * Returns real bEndpointAddress of an endpoint.  If function is not
+ * active returns -ENODEV.
+ */
+#define	FUNCTIONFS_ENDPOINT_REVMAP	_IO('g', 129)
+
+
+
+#endif /* _UAPI__LINUX_FUNCTIONFS_H__ */
diff --git a/include/linux/usb/g_printer.h b/include/uapi/linux/usb/g_printer.h
similarity index 100%
rename from include/linux/usb/g_printer.h
rename to include/uapi/linux/usb/g_printer.h
diff --git a/include/linux/usb/gadgetfs.h b/include/uapi/linux/usb/gadgetfs.h
similarity index 100%
rename from include/linux/usb/gadgetfs.h
rename to include/uapi/linux/usb/gadgetfs.h
diff --git a/include/linux/usb/midi.h b/include/uapi/linux/usb/midi.h
similarity index 100%
rename from include/linux/usb/midi.h
rename to include/uapi/linux/usb/midi.h
diff --git a/include/linux/usb/tmc.h b/include/uapi/linux/usb/tmc.h
similarity index 100%
rename from include/linux/usb/tmc.h
rename to include/uapi/linux/usb/tmc.h
diff --git a/include/linux/usb/video.h b/include/uapi/linux/usb/video.h
similarity index 100%
rename from include/linux/usb/video.h
rename to include/uapi/linux/usb/video.h