| # | |
| # Plug and Play BIOS configuration | |
| # | |
| config PNPBIOS | |
| bool "Plug and Play BIOS support" | |
| depends on ISA && X86_32 | |
| default n | |
| ---help--- | |
| Linux uses the PNPBIOS as defined in "Plug and Play BIOS | |
| Specification Version 1.0A May 5, 1994" to autodetect built-in | |
| mainboard resources (e.g. parallel port resources). | |
| Some features (e.g. event notification, docking station information, | |
| ISAPNP services) are not currently implemented. | |
| If you would like the kernel to detect and allocate resources to | |
| your mainboard devices (on some systems they are disabled by the | |
| BIOS) say Y here. Also the PNPBIOS can help prevent resource | |
| conflicts between mainboard devices and other bus devices. | |
| Note: ACPI is expected to supersede PNPBIOS some day, currently it | |
| co-exists nicely. If you have a non-ISA system that supports ACPI, | |
| you probably don't need PNPBIOS support. | |
| config PNPBIOS_PROC_FS | |
| bool "Plug and Play BIOS /proc interface" | |
| depends on PNPBIOS && PROC_FS | |
| ---help--- | |
| If you say Y here and to "/proc file system support", you will be | |
| able to directly access the PNPBIOS. This includes resource | |
| allocation, ESCD, and other PNPBIOS services. Using this | |
| interface is potentially dangerous because the PNPBIOS driver will | |
| not be notified of any resource changes made by writing directly. | |
| Also some buggy systems will fault when accessing certain features | |
| in the PNPBIOS /proc interface (e.g. "boot" configs). | |
| See the latest pcmcia-cs (stand-alone package) for a nice set of | |
| PNPBIOS /proc interface tools (lspnp and setpnp). | |
| Unless you are debugging or have other specific reasons, it is | |
| recommended that you say N here. | |