Attached patch adds hotkey support for the Zenbook UX31A. I wasn't sure
what to name the magic string, so please rename to whatever you find
more suitable.

Next step in getting the Zenbook UX31A to work better is finding a neat
way to prevent acpivideo from attaching. After the recent refactoring it
seems I need to define ws_get_param and ws_set_param in acpiasus to do
that, right?

Frank
Index: dev/acpi/acpiasus.c
===================================================================
RCS file: /cvs/src/sys/dev/acpi/acpiasus.c,v
retrieving revision 1.17
diff -u -p -r1.17 acpiasus.c
--- dev/acpi/acpiasus.c 21 Feb 2014 18:49:06 -0000      1.17
+++ dev/acpi/acpiasus.c 14 Jul 2016 17:10:20 -0000
@@ -95,7 +95,7 @@ struct cfdriver acpiasus_cd = {
        NULL, "acpiasus", DV_DULL
 };
 
-const char *acpiasus_hids[] = { ACPI_DEV_ASUS, 0 };
+const char *acpiasus_hids[] = { ACPI_DEV_ASUS, ACPI_DEV_ASUS2, 0 };
 
 int
 acpiasus_match(struct device *parent, void *match, void *aux)
Index: dev/acpi/acpireg.h
===================================================================
RCS file: /cvs/src/sys/dev/acpi/acpireg.h,v
retrieving revision 1.36
diff -u -p -r1.36 acpireg.h
--- dev/acpi/acpireg.h  10 Jul 2016 20:36:41 -0000      1.36
+++ dev/acpi/acpireg.h  14 Jul 2016 17:10:20 -0000
@@ -764,6 +764,7 @@ struct acpi_ivrs {
 #define ACPI_DEV_FFB   "FIXEDBUTTON"   /* Fixed Feature Button */
 #define ACPI_DEV_ASUS  "ASUS010"       /* ASUS Hotkeys */
 #define ACPI_DEV_ASUS1 "ATK0100"       /* ASUS Special Device */
+#define ACPI_DEV_ASUS2 "pnp0c14"       /* ASUS Zenbook UX31A Hotkeys */
 #define ACPI_DEV_IBM   "IBM0068"       /* IBM ThinkPad support */
 #define ACPI_DEV_LENOVO        "LEN0068"       /* Lenovo ThinkPad support */
 #define ACPI_DEV_ASUSAIBOOSTER "ATK0110"       /* ASUSTeK AI Booster */

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