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path: root/drivers/leds/trigger/ledtrig-ide-disk.c
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Diffstat (limited to 'drivers/leds/trigger/ledtrig-ide-disk.c')
-rw-r--r--drivers/leds/trigger/ledtrig-ide-disk.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/leds/trigger/ledtrig-ide-disk.c b/drivers/leds/trigger/ledtrig-ide-disk.c
new file mode 100644
index 000000000..2cd7c0cf5
--- /dev/null
+++ b/drivers/leds/trigger/ledtrig-ide-disk.c
@@ -0,0 +1,47 @@
+/*
+ * LED IDE-Disk Activity Trigger
+ *
+ * Copyright 2006 Openedhand Ltd.
+ *
+ * Author: Richard Purdie <rpurdie@openedhand.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/leds.h>
+
+#define BLINK_DELAY 30
+
+DEFINE_LED_TRIGGER(ledtrig_ide);
+static unsigned long ide_blink_delay = BLINK_DELAY;
+
+void ledtrig_ide_activity(void)
+{
+ led_trigger_blink_oneshot(ledtrig_ide,
+ &ide_blink_delay, &ide_blink_delay, 0);
+}
+EXPORT_SYMBOL(ledtrig_ide_activity);
+
+static int __init ledtrig_ide_init(void)
+{
+ led_trigger_register_simple("ide-disk", &ledtrig_ide);
+ return 0;
+}
+
+static void __exit ledtrig_ide_exit(void)
+{
+ led_trigger_unregister_simple(ledtrig_ide);
+}
+
+module_init(ledtrig_ide_init);
+module_exit(ledtrig_ide_exit);
+
+MODULE_AUTHOR("Richard Purdie <rpurdie@openedhand.com>");
+MODULE_DESCRIPTION("LED IDE Disk Activity Trigger");
+MODULE_LICENSE("GPL");