pcibios_write_config_word

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

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

SYNOPSIS

#include <linux/bios32.h>

int pcibios_write_config_word (unsigned char bus, unsigned char device_fn,unsigned char where, unsigned short value);

DESCRIPTION

The pcibios_write_config_word function writes one 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)