NAME

     pcibios_write_config_byte - write one byte of  data  to  the
     configuration space of the PCI bus


SYNOPSIS

     #include <linux/bios32.h>

     int pcibios_write_config_byte(unsigned  char  bus,  unsigned
     char device_fn,unsigned char where, unsigned char value);


DESCRIPTION

     The pcibios_write_config_byte function writes  one  byte  to
     the  configuration  space  of  the  PCI bus.  The bus can be
     specified with the bus parameters.  The  device_fn  paramter
     determines which ? to use.  where is set to the ?.  The byte
     to be written to the configuration space is  stored  in  the
     value parameter.


RETURN VALUE

     The return value is taken from the PCI controller in  a  way
     that I'm not quite sure of.

     If the PCI system is unavailable, PCIBIOS_FUNC_NOT_SUPPORTED
     is returned.


AVAILABILITY

     Linux 1.0?


AUTHOR

     Kirk Petersen (kirk@speakeasy.org)


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