kern: pci: Add further info of pci_bus_lookup()

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/sys/include/io/pci/pci.h b/src/sys/include/io/pci/pci.h
index fedb0d5..81ae87e 100644
--- a/src/sys/include/io/pci/pci.h
+++ b/src/sys/include/io/pci/pci.h
@@ -106,6 +106,11 @@ typedef enum {
  *
  * @lookup: Lookup descriptor that must match a device
  * @type:  Lookup type
+ *
+ * XXX: The result is written back to 'lookup'
+ *
+ * Returns zero on success, otherwise a less than zero value
+ * on failure.
  */
 int pci_bus_lookup(struct pci_device *lookup, lookup_type_t type);