drivers/pnp/pnpbios/Kconfig

   1 #
   2 # Plug and Play BIOS configuration
   3 #
   4 config PNPBIOS
   5         bool "Plug and Play BIOS support (EXPERIMENTAL)"
   6         depends on PNP && 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
  25 config 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