GT683R_BUFFER_SIZE
ret = hid_hw_raw_request(led->hdev, msg[0], msg, GT683R_BUFFER_SIZE,
if (ret != GT683R_BUFFER_SIZE) {
buffer = kzalloc(GT683R_BUFFER_SIZE, GFP_KERNEL);
buffer = kzalloc(GT683R_BUFFER_SIZE, GFP_KERNEL);