pcibios_write_config_dword

Section: BIOS32 Functions (9)
Updated: August 5, 1997
Page Index

NAME

pcibios_write_config_dword - write one double word of data to the configuration space of the PCI bus

SYNOPSIS

#include <linux/bios32.h>

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

DESCRIPTION

The pcibios_write_config_dword function writes one double word 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 word 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)