Loading...
// SPDX-License-Identifier: GPL-2.0-only /* * LED Disk Activity Trigger * * Copyright 2006 Openedhand Ltd. * * Author: Richard Purdie <rpurdie@openedhand.com> */ #include <linux/kernel.h> #include <linux/init.h> #include <linux/leds.h> #define BLINK_DELAY 30 DEFINE_LED_TRIGGER(ledtrig_disk); DEFINE_LED_TRIGGER(ledtrig_disk_read); DEFINE_LED_TRIGGER(ledtrig_disk_write); void ledtrig_disk_activity(bool write) { unsigned long blink_delay = BLINK_DELAY; led_trigger_blink_oneshot(ledtrig_disk, &blink_delay, &blink_delay, 0); if (write) led_trigger_blink_oneshot(ledtrig_disk_write, &blink_delay, &blink_delay, 0); else led_trigger_blink_oneshot(ledtrig_disk_read, &blink_delay, &blink_delay, 0); } EXPORT_SYMBOL(ledtrig_disk_activity); static int __init ledtrig_disk_init(void) { led_trigger_register_simple("disk-activity", &ledtrig_disk); led_trigger_register_simple("disk-read", &ledtrig_disk_read); led_trigger_register_simple("disk-write", &ledtrig_disk_write); return 0; } device_initcall(ledtrig_disk_init); |