+ if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
+ (usage->code == ABS_VOLUME)) {
+ int count = abs(value);
+ int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ input_event(input, EV_KEY, direction, 1);
+ input_sync(input);
+ input_event(input, EV_KEY, direction, 0);
+ input_sync(input);
+ }
+ return;
+ }
+
+ /* Handling MS keyboards special buttons */
+ if (IS_MS_KB(hid) && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
+ int key = 0;
+ static int last_key = 0;
+ switch (value) {
+ case 0x01: key = KEY_F14; break;
+ case 0x02: key = KEY_F15; break;
+ case 0x04: key = KEY_F16; break;
+ case 0x08: key = KEY_F17; break;
+ case 0x10: key = KEY_F18; break;
+ default: break;
+ }
+ if (key) {
+ input_event(input, usage->type, key, 1);
+ last_key = key;
+ } else {
+ input_event(input, usage->type, last_key, 0);
+ }
+ }
+ /* report the usage code as scancode if the key status has changed */
+ if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
+ input_event(input, EV_MSC, MSC_SCAN, usage->hid);
+