HUP_CONSUMER
HID_USAGE2(HUP_CONSUMER, 0xE9 /* Volume Increment */),
HID_USAGE2(HUP_CONSUMER, 0xEA /* Volume Decrement */),
HID_USAGE2(HUP_CONSUMER, 0xE2 /* Mute */),
HID_USAGE2(HUP_CONSUMER, HUG_APPLE_EJECT),
} else if (hid_locate(buf, len, HID_USAGE2(HUP_CONSUMER,