pcibios_read_config_byte - read one byte of data from the
configuration space of the PCI bus
int pcibios_read_config_byte (unsigned char bus, unsigned
char device_fn,unsigned char where, unsigned char * value);
The pcibios_read_config_byte function reads one byte from
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 ?. After
the call is made, value points to the value that was read.
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
Kirk Petersen (email@example.com)