/* * LED Triggers for USB Activity * * Copyright 2014 Michal Sojka <sojka@merica.cz> * * 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 <linux/usb.h> #define BLINK_DELAY 30 static unsigned long usb_blink_delay = BLINK_DELAY; DEFINE_LED_TRIGGER(ledtrig_usb_gadget); DEFINE_LED_TRIGGER(ledtrig_usb_host); void usb_led_activity(enum usb_led_event ev) { struct led_trigger *trig = NULL; switch (ev) { case USB_LED_EVENT_GADGET: trig = ledtrig_usb_gadget; break; case USB_LED_EVENT_HOST: trig = ledtrig_usb_host; break; } /* led_trigger_blink_oneshot() handles trig == NULL gracefully */ led_trigger_blink_oneshot(trig, &usb_blink_delay, &usb_blink_delay, 0); } EXPORT_SYMBOL_GPL(usb_led_activity); static int __init ledtrig_usb_init(void) { led_trigger_register_simple("usb-gadget", &ledtrig_usb_gadget); led_trigger_register_simple("usb-host", &ledtrig_usb_host); return 0; } static void __exit ledtrig_usb_exit(void) { led_trigger_unregister_simple(ledtrig_usb_gadget); led_trigger_unregister_simple(ledtrig_usb_host); } module_init(ledtrig_usb_init); module_exit(ledtrig_usb_exit); t plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table> <table class='tabs'><tr><td> <a href='/cgit.cgi/linux/net-next.git/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/sound/drivers/mts64.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/sound/drivers/mts64.c?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/sound/drivers/mts64.c?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/sound/drivers/mts64.c?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/sound/drivers/mts64.c'> <input type='hidden' name='id' value='7aa0f5aa9030aa97e9d83d834fc977664cf1b066'/><select name='qt'> <option value='grep'>log msg</option> <option value='author'>author</option> <option value='committer'>committer</option> <option value='range'>range</option> </select> <input class='txt' type='search' size='10' name='q' value=''/> <input type='submit' value='search'/> </form> </td></tr></table> <div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/drivers?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/log/sound/drivers/mts64.c?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066'>mts64.c</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/sound/drivers/mts64.c?id=7aa0f5aa9030aa97e9d83d834fc977664cf1b066&showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>