1# 2# Plug and Play BIOS configuration 3# 4config PNPBIOS 5 bool "Plug and Play BIOS support (EXPERIMENTAL)" 6 depends on ISA && X86 && EXPERIMENTAL 7 default n 8 ---help--- 9 Linux uses the PNPBIOS as defined in "Plug and Play BIOS 10 Specification Version 1.0A May 5, 1994" to autodetect built-in 11 mainboard resources (e.g. parallel port resources). 12 13 Some features (e.g. event notification, docking station information, 14 ISAPNP services) are not currently implemented. 15 16 If you would like the kernel to detect and allocate resources to 17 your mainboard devices (on some systems they are disabled by the 18 BIOS) say Y here. Also the PNPBIOS can help prevent resource 19 conflicts between mainboard devices and other bus devices. 20 21 Note: ACPI is expected to supersede PNPBIOS some day, currently it 22 co-exists nicely. If you have a non-ISA system that supports ACPI, 23 you probably don't need PNPBIOS support. 24 25config PNPBIOS_PROC_FS 26 bool "Plug and Play BIOS /proc interface" 27 depends on PNPBIOS && PROC_FS 28 ---help--- 29 If you say Y here and to "/proc file system support", you will be 30 able to directly access the PNPBIOS. This includes resource 31 allocation, ESCD, and other PNPBIOS services. Using this 32 interface is potentially dangerous because the PNPBIOS driver will 33 not be notified of any resource changes made by writing directly. 34 Also some buggy systems will fault when accessing certain features 35 in the PNPBIOS /proc interface (e.g. "boot" configs). 36 37 See the latest pcmcia-cs (stand-alone package) for a nice set of 38 PNPBIOS /proc interface tools (lspnp and setpnp). 39 40 Unless you are debugging or have other specific reasons, it is 41 recommended that you say N here. 42 43