LED_BLINK_SW
if (!test_bit(LED_BLINK_SW, &led_cdev->work_flags))
set_bit(LED_BLINK_SW, &led_cdev->work_flags);
clear_bit(LED_BLINK_SW, &led_cdev->work_flags);
clear_bit(LED_BLINK_SW, &led_cdev->work_flags);
if (test_bit(LED_BLINK_SW, &led_cdev->work_flags)) {
clear_bit(LED_BLINK_SW, &led_cdev->work_flags);
clear_bit(LED_BLINK_SW, &led_cdev->work_flags);
set_bit(LED_BLINK_SW, &led_cdev->work_flags);
clear_bit(LED_BLINK_SW, &led_cdev->work_flags);
set_bit(LED_BLINK_SW, &led_cdev->work_flags);
clear_bit(LED_BLINK_SW, &led_cdev->work_flags);