pnpbios(4) - NetBSD Manual Pages

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PNPBIOS(4)           NetBSD/i386 Kernel Interfaces Manual           PNPBIOS(4)


NAME

     pnpbios -- introduction to PnP BIOS support


SYNOPSIS

     pnpbios0 at mainbus?
     XX*      at pnpbios0 index ?

     options PNPBIOSVERBOSE
     options PNPBIOSDEBUG


INTRODUCTION

     pnpbios provides support for finding and attaching devices by extracting
     information from the PnP BIOS of a machine.


SUPPORTED DEVICES

     NetBSD includes the following pnpbios drivers, sorted by driver name:

           com(4)      serial communications interface
           ess(4)      ESS Technology AudioDrive family audio device driver
           x86/fdc(4)  floppy controller
           joy(4)      game controller
           x86/lpt(4)  parallel port driver
           pciide(4)   PCI IDE controllers driver
           pckbc(4)    PC keyboard/mouse controller
           sb(4)       SoundBlaster family audio device driver
           wss(4)      Windows Sound System hardware driver
           ym(4)       Yamaha OPL3-SA3 sound driver


SEE ALSO

     i386/intro(4), isa(4), pci(4)


HISTORY

     The pnpbios driver appeared in NetBSD 1.5.


BUGS

     The pnpbios bus provides a different way to attach devices than the real
     buses (e.g., isa(4)).  The reason to use pnpbios instead of the real bus
     is that some machines have weird routings of, e.g., interrupts.  The
     exact information about these things can be found in the BIOS, which is
     why the pnpbios bus has a better chance of succeeding with getting it
     right.

     Many older BIOS implementations do not support PnP, and some newer ones
     do not follow the standards.

NetBSD 10.1                    February 17, 2017                   NetBSD 10.1