mirror of https://gitee.com/openkylin/linux.git
43 lines
1.6 KiB
Plaintext
43 lines
1.6 KiB
Plaintext
#
|
|
# Plug and Play BIOS configuration
|
|
#
|
|
config PNPBIOS
|
|
bool "Plug and Play BIOS support"
|
|
depends on ISA && X86
|
|
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.
|
|
|