HID: Add suport for the brightness control keys on HP keyboards

The keys are found on the keyboards bundled with HP All-In-One machines
with USB VID/PID of 04ca:004d and 04f2:1061.

Signed-off-by: Keng-Yu Lin <kengyu@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 132b001..879443b 100644 (file)
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -834,6 +834,15 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
                }
                break;
 
+       case HID_UP_HPVENDOR2:
+               set_bit(EV_REP, input->evbit);
+               switch (usage->hid & HID_USAGE) {
+               case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN);  break;
+               case 0x004: map_key_clear(KEY_BRIGHTNESSUP);    break;
+               default:    goto ignore;
+               }
+               break;
+
        case HID_UP_MSVENDOR:
                goto ignore;
 

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 449fa38..42970de 100644 (file)
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -200,6 +200,7 @@ struct hid_item {
 #define HID_UP_DIGITIZER       0x000d0000
 #define HID_UP_PID             0x000f0000
 #define HID_UP_HPVENDOR         0xff7f0000
+#define HID_UP_HPVENDOR2        0xff010000
 #define HID_UP_MSVENDOR                0xff000000
 #define HID_UP_CUSTOM          0x00ff0000
 #define HID_UP_LOGIVENDOR      0xffbc0000