On Mon, Jun 10, 2013 at 11:51:27AM +0200, Frank Kardel wrote: > platform. E.g. isa bus based GPIO registers there are present on a > Soekris net6501 only.
Often in such cases the pci bridges have specific PCI IDs that can be used to positively identify the system. You can use pci_find_device() then. Another option (if you can identify the device by other means earlier) is to create device-properties on the parent device and have the match function check those. Martin
