qnap_mcu_err_led
static inline struct qnap_mcu_err_led *
return container_of(led_cdev, struct qnap_mcu_err_led, cdev);
struct qnap_mcu_err_led *err_led = cdev_to_qnap_mcu_err_led(led_cdev);
struct qnap_mcu_err_led *err_led = cdev_to_qnap_mcu_err_led(led_cdev);
struct qnap_mcu_err_led *err_led;