Hi! This will eventually go in, unless I hear some good reasons not to.
Best regards,
Pavel
===
leds: we don't want people to use LED subsystem for vibrations
Remove notes about vibrations, as that is better done using input
subsystem.
Signed-off-by: Pavel Machek <pa...@ucw.cz>
diff --git a/Documentation/leds/ledtrig-transient.rst
b/Documentation/leds/ledtrig-transient.rst
index eedfa1626e8a..63072f310660 100644
--- a/Documentation/leds/ledtrig-transient.rst
+++ b/Documentation/leds/ledtrig-transient.rst
@@ -17,12 +17,6 @@ set a timer to hold a state, however when user space
application crashes or
goes away without deactivating the timer, the hardware will be left in that
state permanently.
-As a specific example of this use-case, let's look at vibrate feature on
-phones. Vibrate function on phones is implemented using PWM pins on SoC or
-PMIC. There is a need to activate one shot timer to control the vibrate
-feature, to prevent user space crashes leaving the phone in vibrate mode
-permanently causing the battery to drain.
-
Transient trigger addresses the need for one shot timer activation. The
transient trigger can be enabled and disabled just like the other leds
triggers.
@@ -159,7 +153,6 @@ repeat the following step as needed::
This trigger is intended to be used for the following example use cases:
- - Control of vibrate (phones, tablets etc.) hardware by user space app.
- Use of LED by user space app as activity indicator.
- Use of LED by user space app as a kind of watchdog indicator -- as
long as the app is alive, it can keep the LED illuminated, if it dies
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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