It seems to me that the activate function was registered as a detach
function. This diff puts the activate function in the proper cfattach
position.
Index: dev/acpi/acpiasus.c
===================================================================
RCS file: /cvs/src/sys/dev/acpi/acpiasus.c,v
retrieving revision 1.15
diff -u -p -r1.15 acpiasus.c
--- dev/acpi/acpiasus.c 6 Dec 2013 21:03:02 -0000 1.15
+++ dev/acpi/acpiasus.c 29 Jan 2014 12:57:26 -0000
@@ -88,7 +88,7 @@ extern int wskbd_set_mixervolume(long, l
struct cfattach acpiasus_ca = {
sizeof(struct acpiasus_softc), acpiasus_match, acpiasus_attach,
- acpiasus_activate
+ NULL, acpiasus_activate
};
struct cfdriver acpiasus_cd = {
