int pcibios_read_config_dword (unsigned char bus, unsigned char device_fn,unsigned char where, unsigned int * value);
DESCRIPTION
The
pcibios_read_config_dword
function reads a double word 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.
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.
