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path: root/drivers/leds/led-triggers.c
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* leds: Prevent multiple LED triggers with the same nameAdam Nielsen2009-04-061-1/+9
| | | | | Signed-off-by: Adam Nielsen <a.nielsen@shikadi.net> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
* leds: Ensure led->trigger is set earlierDmitry Baryshkov2008-07-231-1/+2
| | | | | | | | Make sure led->trigger is valid before calling trigger->activate Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* leds: Cleanup various whitespace and code style issuesNémeth Márton2008-04-241-55/+55
| | | | | | | | | | | | | | | Break the lines which were more than 80 characters into more lines; replace SPACEs with TABs; correct ident at switch-case; change character encoding from ISO-8859-2 to UTF-8. The order of the functions in led-triggers.c changed in order the similar functions can still be together under titles "Used by LED Class", "LED Trigger Interface" and "Simple LED Tigger Interface" as was grouped before when exported with EXPORT_SYMBOL. Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* leds: disable triggers on brightness setNémeth Márton2008-04-241-3/+9
| | | | | | | | | Disable any active triggers when the brightness attribute is set to zero. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Márton Németh <nm127@freemail.hu> Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* leds: Fix leds_list_lock locking issuesRichard Purdie2007-12-311-4/+4
| | | | | | | Covert leds_list_lock to a rw_sempahore to match previous LED trigger locking fixes, fixing lock ordering. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* leds: Fix led trigger locking bugsRichard Purdie2007-12-071-24/+25
| | | | | | | | Convert part of the led trigger core from rw spinlocks to rw semaphores. We're calling functions which can sleep from invalid contexts otherwise. Fixes bug #9264. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* leds: Convert from struct class_device to struct deviceRichard Purdie2007-07-161-6/+7
| | | | | | | | Convert the LEDs class from struct class_device to struct device since class_device is scheduled for removal. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* leds: Add warning printks in error pathsRichard Purdie2007-07-161-2/+9
| | | | | | Add warning printks if led_trigger_register_simple() fails. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* leds: Fix trigger unregister_simple if register_simple failsRichard Purdie2007-07-161-1/+2
| | | | | | | | Fix led_trigger_unregister_simple to handle the case where led_trigger_register_simple fails, avoiding a NULL pointer dereference. Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
* [PATCH] leds: turn LED off when changing triggersPaul Collins2006-10-011-0/+1
| | | | | | | | | | | | | | | I was playing with LED triggers when I noticed that changing from heartbeat (or ide-disk) to "none" at the right moment would leave the LED stuck on. This is easy to reproduce by doing "find / >/dev/null" with the ide-disk trigger enabled and then switching to "none". Here is a patch that fixes the problem by explicitly turning the LED off after removing the existing trigger. Signed-off-by: Paul Collins <paul@ondioline.org> Acked-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-301-1/+0
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] spin/rwlock init cleanupsIngo Molnar2006-06-271-1/+1
| | | | | | | | | | | | | | | | | | | | | locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] LED: add LED trigger tupportRichard Purdie2006-03-311-0/+239
Add support for LED triggers to the LED subsystem. "Triggers" are events which change the state of an LED. Two kinds of trigger are available, simple ones which can be added to exising code with minimum disruption and complex ones for implementing new or more complex functionality. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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