Documentation/video4linux/bttv/Insmod-options - arm/linux-arm64-legacy - Git at Google


 Note: "modinfo <module>" prints various informations about a kernel
 module, among them a complete and up-to-date list of insmod options.
 This list tends to be outdated because it is updated manually ...

 ==========================================================================

 bttv.o
 	the bt848/878 (grabber chip) driver

 	insmod args:
 		card=n		card type, see CARDLIST for a list.
 		tuner=n		tuner type, see CARDLIST for a list.
 		radio=0/1	card supports radio
 		pll=0/1/2	pll settings
 			0: don't use PLL
 			1: 28 MHz crystal installed
 			2: 35 MHz crystal installed

 		triton1=0/1     for Triton1 (+others) compatibility
 		vsfx=0/1	yet another chipset bug compatibility bit
 				see README.quirks for details on these two.

 		bigendian=n	Set the endianness of the gfx framebuffer.
 				Default is native endian.
 		fieldnr=0/1	Count fields.  Some TV descrambling software
 				needs this, for others it only generates
 				50 useless IRQs/sec.  default is 0 (off).
 		autoload=0/1	autoload helper modules (tuner, audio).
 				default is 1 (on).
 		bttv_verbose=0/1/2  verbose level (at insmod time, while
 				looking at the hardware).  default is 1.
 		bttv_debug=0/1	debug messages (for capture).
 				default is 0 (off).
 		irq_debug=0/1	irq handler debug messages.
 				default is 0 (off).
 		gbuffers=2-32	number of capture buffers for mmap'ed capture.
 				default is 4.
 		gbufsize=	size of capture buffers. default and
 				maximum value is 0x208000 (~2MB)
 		no_overlay=0	Enable overlay on broken hardware.  There
 				are some chipsets (SIS for example) which
 				are known to have problems with the PCI DMA
 				push used by bttv.  bttv will disable overlay
 				by default on this hardware to avoid crashes.
 				With this insmod option you can override this.
 		no_overlay=1	Disable overlay. It should be used by broken
 				hardware that doesn't support PCI2PCI direct
 				transfers.
 		automute=0/1	Automatically mutes the sound if there is
 				no TV signal, on by default.  You might try
 				to disable this if you have bad input signal
 				quality which leading to unwanted sound
 				dropouts.
 		chroma_agc=0/1	AGC of chroma signal, off by default.
 		adc_crush=0/1	Luminance ADC crush, on by default.
 		i2c_udelay=     Allow reduce I2C speed. Default is 5 usecs
 				(meaning 66,67 Kbps). The default is the
 				maximum supported speed by kernel bitbang
 				algoritm. You may use lower numbers, if I2C
 				messages are lost (16 is known to work on
 				all supported cards).

 		bttv_gpio=0/1
 		gpiomask=
 		audioall=
 		audiomux=
 				See Sound-FAQ for a detailed description.

 	remap, card, radio and pll accept up to four comma-separated arguments
 	(for multiple boards).

 tuner.o
 	The tuner driver.  You need this unless you want to use only
 	with a camera or external tuner ...

 	insmod args:
 		debug=1		print some debug info to the syslog
 		type=n		type of the tuner chip. n as follows:
 				see CARDLIST for a complete list.
 		pal=[bdgil]	select PAL variant (used for some tuners
 				only, important for the audio carrier).

 tvmixer.o
 	registers a mixer device for the TV card's volume/bass/treble
 	controls (requires a i2c audio control chip like the msp3400).

 	insmod args:
 		debug=1		print some debug info to the syslog.
 		devnr=n		allocate device #n (0 == /dev/mixer,
 				1 = /dev/mixer1, ...), default is to
 				use the first free one.

 tvaudio.o
 	new, experimental module which is supported to provide a single
 	driver for all simple i2c audio control chips (tda/tea*).

 	insmod args:
 		tda8425  = 1	enable/disable the support for the
 		tda9840  = 1	various chips.
 		tda9850  = 1	The tea6300 can't be autodetected and is
 		tda9855  = 1	therefore off by default, if you have
 		tda9873  = 1	this one on your card (STB uses these)
 		tda9874a = 1	you have to enable it explicitly.
 		tea6300  = 0	The two tda985x chips use the same i2c
 		tea6420  = 1	address and can't be disturgished from
 		pic16c54 = 1	each other, you might have to disable
 				the wrong one.
 		debug = 1	print debug messages

 	insmod args for tda9874a:
 		tda9874a_SIF=1/2	select sound IF input pin (1 or 2)
 					(default is pin 1)
 		tda9874a_AMSEL=0/1	auto-mute select for NICAM (default=0)
 					Please read note 3 below!
 		tda9874a_STD=n		select TV sound standard (0..8):
 					0 - A2, B/G
 					1 - A2, M (Korea)
 					2 - A2, D/K (1)
 					3 - A2, D/K (2)
 					4 - A2, D/K (3)
 					5 - NICAM, I
 					6 - NICAM, B/G
 					7 - NICAM, D/K (default)
 					8 - NICAM, L

 	Note 1: tda9874a supports both tda9874h (old) and tda9874a (new) chips.
 	Note 2: tda9874h/a and tda9875 (which is supported separately by
 	tda9875.o) use the same i2c address so both modules should not be
 	used at the same time.
 	Note 3: Using tda9874a_AMSEL option depends on your TV card design!
 		AMSEL=0: auto-mute will switch between NICAM sound
 			 and the sound on 1st carrier (i.e. FM mono or AM).
 		AMSEL=1: auto-mute will switch between NICAM sound
 			 and the analog mono input (MONOIN pin).
 	If tda9874a decoder on your card has MONOIN pin not connected, then
 	use only tda9874_AMSEL=0 or don't specify this option at all.
 	For example:
 	  card=65 (FlyVideo 2000S) - set AMSEL=1 or AMSEL=0
 	  card=72 (Prolink PV-BT878P rev.9B) - set AMSEL=0 only

 msp3400.o
 	The driver for the msp34xx sound processor chips. If you have a
 	stereo card, you probably want to insmod this one.

 	insmod args:
 		debug=1/2	print some debug info to the syslog,
 				2 is more verbose.
 		simple=1	Use the "short programming" method.  Newer
 				msp34xx versions support this.  You need this
 				for dbx stereo.  Default is on if supported by
 				the chip.
 		once=1		Don't check the TV-stations Audio mode
 				every few seconds, but only once after
 				channel switches.
 		amsound=1	Audio carrier is AM/NICAM at 6.5 Mhz.  This
 				should improve things for french people, the
 				carrier autoscan seems to work with FM only...

 tea6300.o - OBSOLETE (use tvaudio instead)
 	The driver for the tea6300 fader chip.  If you have a stereo
 	card and the msp3400.o doesn't work, you might want to try this
 	one.  This chip is seen on most STB TV/FM cards (usually from
 	Gateway OEM sold surplus on auction sites).

 	insmod args:
 		debug=1		print some debug info to the syslog.

 tda8425.o - OBSOLETE (use tvaudio instead)
 	The driver for the tda8425 fader chip.  This driver used to be
 	part of bttv.c, so if your sound used to work but does not
 	anymore, try loading this module.

 	insmod args:
 		debug=1		print some debug info to the syslog.

 tda985x.o - OBSOLETE (use tvaudio instead)
 	The driver for the tda9850/55 audio chips.

 	insmod args:
 		debug=1		print some debug info to the syslog.
 		chip=9850/9855	set the chip type.

	Note: "modinfo <module>" prints various informations about a kernel
	module, among them a complete and up-to-date list of insmod options.
	This list tends to be outdated because it is updated manually ...

	==========================================================================

	bttv.o
	the bt848/878 (grabber chip) driver

	insmod args:
	card=n card type, see CARDLIST for a list.
	tuner=n tuner type, see CARDLIST for a list.
	radio=0/1 card supports radio
	pll=0/1/2 pll settings
	0: don't use PLL
	1: 28 MHz crystal installed
	2: 35 MHz crystal installed

	triton1=0/1 for Triton1 (+others) compatibility
	vsfx=0/1 yet another chipset bug compatibility bit
	see README.quirks for details on these two.

	bigendian=n Set the endianness of the gfx framebuffer.
	Default is native endian.
	fieldnr=0/1 Count fields. Some TV descrambling software
	needs this, for others it only generates
	50 useless IRQs/sec. default is 0 (off).
	autoload=0/1 autoload helper modules (tuner, audio).
	default is 1 (on).
	bttv_verbose=0/1/2 verbose level (at insmod time, while
	looking at the hardware). default is 1.
	bttv_debug=0/1 debug messages (for capture).
	default is 0 (off).
	irq_debug=0/1 irq handler debug messages.
	default is 0 (off).
	gbuffers=2-32 number of capture buffers for mmap'ed capture.
	default is 4.
	gbufsize= size of capture buffers. default and
	maximum value is 0x208000 (~2MB)
	no_overlay=0 Enable overlay on broken hardware. There
	are some chipsets (SIS for example) which
	are known to have problems with the PCI DMA
	push used by bttv. bttv will disable overlay
	by default on this hardware to avoid crashes.
	With this insmod option you can override this.
	no_overlay=1 Disable overlay. It should be used by broken
	hardware that doesn't support PCI2PCI direct
	transfers.
	automute=0/1 Automatically mutes the sound if there is
	no TV signal, on by default. You might try
	to disable this if you have bad input signal
	quality which leading to unwanted sound
	dropouts.
	chroma_agc=0/1 AGC of chroma signal, off by default.
	adc_crush=0/1 Luminance ADC crush, on by default.
	i2c_udelay= Allow reduce I2C speed. Default is 5 usecs
	(meaning 66,67 Kbps). The default is the
	maximum supported speed by kernel bitbang
	algoritm. You may use lower numbers, if I2C
	messages are lost (16 is known to work on
	all supported cards).

	bttv_gpio=0/1
	gpiomask=
	audioall=
	audiomux=
	See Sound-FAQ for a detailed description.

	remap, card, radio and pll accept up to four comma-separated arguments
	(for multiple boards).

	tuner.o
	The tuner driver. You need this unless you want to use only
	with a camera or external tuner ...

	insmod args:
	debug=1 print some debug info to the syslog
	type=n type of the tuner chip. n as follows:
	see CARDLIST for a complete list.
	pal=[bdgil] select PAL variant (used for some tuners
	only, important for the audio carrier).

	tvmixer.o
	registers a mixer device for the TV card's volume/bass/treble
	controls (requires a i2c audio control chip like the msp3400).

	insmod args:
	debug=1 print some debug info to the syslog.
	devnr=n allocate device #n (0 == /dev/mixer,
	1 = /dev/mixer1, ...), default is to
	use the first free one.

	tvaudio.o
	new, experimental module which is supported to provide a single
	driver for all simple i2c audio control chips (tda/tea*).

	insmod args:
	tda8425 = 1 enable/disable the support for the
	tda9840 = 1 various chips.
	tda9850 = 1 The tea6300 can't be autodetected and is
	tda9855 = 1 therefore off by default, if you have
	tda9873 = 1 this one on your card (STB uses these)
	tda9874a = 1 you have to enable it explicitly.
	tea6300 = 0 The two tda985x chips use the same i2c
	tea6420 = 1 address and can't be disturgished from
	pic16c54 = 1 each other, you might have to disable
	the wrong one.
	debug = 1 print debug messages

	insmod args for tda9874a:
	tda9874a_SIF=1/2 select sound IF input pin (1 or 2)
	(default is pin 1)
	tda9874a_AMSEL=0/1 auto-mute select for NICAM (default=0)
	Please read note 3 below!
	tda9874a_STD=n select TV sound standard (0..8):
	0 - A2, B/G
	1 - A2, M (Korea)
	2 - A2, D/K (1)
	3 - A2, D/K (2)
	4 - A2, D/K (3)
	5 - NICAM, I
	6 - NICAM, B/G
	7 - NICAM, D/K (default)
	8 - NICAM, L

	Note 1: tda9874a supports both tda9874h (old) and tda9874a (new) chips.
	Note 2: tda9874h/a and tda9875 (which is supported separately by
	tda9875.o) use the same i2c address so both modules should not be
	used at the same time.
	Note 3: Using tda9874a_AMSEL option depends on your TV card design!
	AMSEL=0: auto-mute will switch between NICAM sound
	and the sound on 1st carrier (i.e. FM mono or AM).
	AMSEL=1: auto-mute will switch between NICAM sound
	and the analog mono input (MONOIN pin).
	If tda9874a decoder on your card has MONOIN pin not connected, then
	use only tda9874_AMSEL=0 or don't specify this option at all.
	For example:
	card=65 (FlyVideo 2000S) - set AMSEL=1 or AMSEL=0
	card=72 (Prolink PV-BT878P rev.9B) - set AMSEL=0 only

	msp3400.o
	The driver for the msp34xx sound processor chips. If you have a
	stereo card, you probably want to insmod this one.

	insmod args:
	debug=1/2 print some debug info to the syslog,
	2 is more verbose.
	simple=1 Use the "short programming" method. Newer
	msp34xx versions support this. You need this
	for dbx stereo. Default is on if supported by
	the chip.
	once=1 Don't check the TV-stations Audio mode
	every few seconds, but only once after
	channel switches.
	amsound=1 Audio carrier is AM/NICAM at 6.5 Mhz. This
	should improve things for french people, the
	carrier autoscan seems to work with FM only...

	tea6300.o - OBSOLETE (use tvaudio instead)
	The driver for the tea6300 fader chip. If you have a stereo
	card and the msp3400.o doesn't work, you might want to try this
	one. This chip is seen on most STB TV/FM cards (usually from
	Gateway OEM sold surplus on auction sites).

	insmod args:
	debug=1 print some debug info to the syslog.

	tda8425.o - OBSOLETE (use tvaudio instead)
	The driver for the tda8425 fader chip. This driver used to be
	part of bttv.c, so if your sound used to work but does not
	anymore, try loading this module.

	insmod args:
	debug=1 print some debug info to the syslog.

	tda985x.o - OBSOLETE (use tvaudio instead)
	The driver for the tda9850/55 audio chips.

	insmod args:
	debug=1 print some debug info to the syslog.
	chip=9850/9855 set the chip type.