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authorNick Forbes <Nick.Forbes@huntsworth.com>2008-04-25 00:06:52 +0100
committerRichard Purdie <rpurdie@rpsys.net>2008-04-25 00:06:52 +0100
commit060856c799191ffc360105cac49f3f9e68d526b7 (patch)
tree191f593264e0712b1be086c3e49faa9b2c782e9a /drivers/leds/ledtrig-default-on.c
parent2e214e0fa21465cf2749ca7d5a072cf8591f3213 (diff)
downloadop-kernel-dev-060856c799191ffc360105cac49f3f9e68d526b7.zip
op-kernel-dev-060856c799191ffc360105cac49f3f9e68d526b7.tar.gz
leds: Add default-on trigger
Add a trigger which allows LEDs to default to the full brightness state. Signed-off-by: Nick Forbes <Nick.Forbes@huntsworth.com> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Diffstat (limited to 'drivers/leds/ledtrig-default-on.c')
-rw-r--r--drivers/leds/ledtrig-default-on.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/leds/ledtrig-default-on.c b/drivers/leds/ledtrig-default-on.c
new file mode 100644
index 0000000..92995e4
--- /dev/null
+++ b/drivers/leds/ledtrig-default-on.c
@@ -0,0 +1,45 @@
+/*
+ * LED Kernel Default ON Trigger
+ *
+ * Copyright 2008 Nick Forbes <nick.forbes@incepta.com>
+ *
+ * Based on Richard Purdie's ledtrig-timer.c.
+ *
+ * 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>
+#include "leds.h"
+
+static void defon_trig_activate(struct led_classdev *led_cdev)
+{
+ led_set_brightness(led_cdev, LED_FULL);
+}
+
+static struct led_trigger defon_led_trigger = {
+ .name = "default-on",
+ .activate = defon_trig_activate,
+};
+
+static int __init defon_trig_init(void)
+{
+ return led_trigger_register(&defon_led_trigger);
+}
+
+static void __exit defon_trig_exit(void)
+{
+ led_trigger_unregister(&defon_led_trigger);
+}
+
+module_init(defon_trig_init);
+module_exit(defon_trig_exit);
+
+MODULE_AUTHOR("Nick Forbes <nick.forbes@incepta.com>");
+MODULE_DESCRIPTION("Default-ON LED trigger");
+MODULE_LICENSE("GPL");
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