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Linux/drivers/pnp/pnpbios/Kconfig

  1 #
  2 # Plug and Play BIOS configuration
  3 #
  4 config PNPBIOS
  5         bool "Plug and Play BIOS support"
  6         depends on ISA && X86
  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 

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