One nit:
+wsdisplayio_busid_pci(device_t self, pci_chipset_tag_t pc,
+ pcitag_t tag, void *data)
+{
+ struct wsdisplayio_bus_id *busid = data;
+
+ busid->bus_type = WSDISPLAYIO_BUS_PCI;
+ busid->ubus.pci.domain = device_unit(device_parent(self));
Please add a KASSERT here, as this doesn't do the right thing in all
cases, consider the following:
mymfdev0 at pci1 dev 3 function 0
mymfdevfb0 at mymfdev0
wsdisplay0 at mymfdevfb0
^ will get a 'domain' of 0 instead of the desired 1
The KASSERT should look like this:
KASSERT(device_is_a(device_parent(self), "pci"))
