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Disable any active triggers when the brightness attribute is
set to zero.
Signed-off-by: Henrique de Moraes Holschuh <[email protected]>
Signed-off-by: Márton Németh <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>
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After 2.6.24 there was a plan to make the PM core acquire all device
semaphores during a suspend/hibernation to protect itself from
concurrent operations involving device objects. That proved to be
too heavy-handed and we found a better way to achieve the goal, but
before it happened, we had introduced the functions
device_pm_schedule_removal() and destroy_suspended_device() to allow
drivers to "safely" destroy a suspended device and we had adapted some
drivers to use them. Now that these functions are no longer necessary,
it seems reasonable to remove them and modify their users to use the
normal device unregistration instead.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Make it possible to unregister a led classdev object in a safe way during a
suspend/resume cycle.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Cc: Michael Buesch <[email protected]>
Cc: Pavel Machek <[email protected]>
Cc: "John W. Linville" <[email protected]>
Cc: Alan Stern <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Greg KH <[email protected]>
Cc: Kay Sievers <[email protected]>
Cc: Richard Purdie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Covert leds_list_lock to a rw_sempahore to match previous LED trigger
locking fixes, fixing lock ordering.
Signed-off-by: Richard Purdie <[email protected]>
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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 <[email protected]>
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Convert the LEDs class from struct class_device to struct device
since class_device is scheduled for removal.
Signed-off-by: Richard Purdie <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
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Signed-off-by: Jeff Garzik <[email protected]>
Cc: Richard Purdie <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Fixes a typo in led-class.c kerneldoc.
Signed-off-by: Henrik Kretzschmar <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>
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Signed-off-by: Jörn Engel <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>
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Fix the error handling of some LED _store functions. This corrects them to
return -EINVAL if the value is not numeric with an optional byte of trailing
whitespace.
Signed-off-by: Richard Purdie <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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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 <[email protected]>
Cc: Russell King <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Add the foundations of a new LEDs subsystem. This patch adds a class which
presents LED devices within sysfs and allows their brightness to be
controlled.
Signed-off-by: Richard Purdie <[email protected]>
Cc: Russell King <[email protected]>
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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