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| author | Jiri Kosina <jkosina@suse.cz> | 2014-02-20 14:54:28 +0100 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2014-02-20 14:54:28 +0100 |
| commit | d4263348f796f29546f90802177865dd4379dd0a (patch) | |
| tree | adcbdaebae584eee2f32fab95e826e8e49eef385 /Documentation/leds | |
| parent | be873ac782f5ff5ee6675f83929f4fe6737eead2 (diff) | |
| parent | 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff) | |
| download | linux-d4263348f796f29546f90802177865dd4379dd0a.tar.bz2 | |
Merge branch 'master' into for-next
Diffstat (limited to 'Documentation/leds')
| -rw-r--r-- | Documentation/leds/00-INDEX | 8 | ||||
| -rw-r--r-- | Documentation/leds/leds-lp55xx.txt | 10 |
2 files changed, 17 insertions, 1 deletions
diff --git a/Documentation/leds/00-INDEX b/Documentation/leds/00-INDEX index 1ecd1596633e..b4ef1f34e25f 100644 --- a/Documentation/leds/00-INDEX +++ b/Documentation/leds/00-INDEX @@ -1,3 +1,7 @@ +00-INDEX + - This file +leds-blinkm.txt + - Driver for BlinkM LED-devices. leds-class.txt - documents LED handling under Linux. leds-lp3944.txt @@ -12,3 +16,7 @@ leds-lp55xx.txt - description about lp55xx common driver. leds-lm3556.txt - notes on how to use the leds-lm3556 driver. +ledtrig-oneshot.txt + - One-shot LED trigger for both sporadic and dense events. +ledtrig-transient.txt + - LED Transient Trigger, one shot timer activation. diff --git a/Documentation/leds/leds-lp55xx.txt b/Documentation/leds/leds-lp55xx.txt index 82713ff92eb3..bcea12a0c584 100644 --- a/Documentation/leds/leds-lp55xx.txt +++ b/Documentation/leds/leds-lp55xx.txt @@ -73,6 +73,10 @@ select_engine : Select which engine is used for running program run_engine : Start program which is loaded via the firmware interface firmware : Load program data +In case of LP5523, one more command is required, 'enginex_leds'. +It is used for selecting LED output(s) at each engine number. +In more details, please refer to 'leds-lp5523.txt'. + For example, run blinking pattern in engine #1 of LP5521 echo 1 > /sys/bus/i2c/devices/xxxx/select_engine echo 1 > /sys/class/firmware/lp5521/loading @@ -81,10 +85,12 @@ echo 0 > /sys/class/firmware/lp5521/loading echo 1 > /sys/bus/i2c/devices/xxxx/run_engine For example, run blinking pattern in engine #3 of LP55231 +Two LEDs are configured as pattern output channels. echo 3 > /sys/bus/i2c/devices/xxxx/select_engine echo 1 > /sys/class/firmware/lp55231/loading echo "9d0740ff7e0040007e00a0010000" > /sys/class/firmware/lp55231/data echo 0 > /sys/class/firmware/lp55231/loading +echo "000001100" > /sys/bus/i2c/devices/xxxx/engine3_leds echo 1 > /sys/bus/i2c/devices/xxxx/run_engine To start blinking patterns in engine #2 and #3 simultaneously, @@ -99,17 +105,19 @@ done echo 1 > /sys/class/leds/red/device/run_engine Here is another example for LP5523. +Full LED strings are selected by 'engine2_leds'. echo 2 > /sys/bus/i2c/devices/xxxx/select_engine echo 1 > /sys/class/firmware/lp5523/loading echo "9d80400004ff05ff437f0000" > /sys/class/firmware/lp5523/data echo 0 > /sys/class/firmware/lp5523/loading +echo "111111111" > /sys/bus/i2c/devices/xxxx/engine2_leds echo 1 > /sys/bus/i2c/devices/xxxx/run_engine As soon as 'loading' is set to 0, registered callback is called. Inside the callback, the selected engine is loaded and memory is updated. To run programmed pattern, 'run_engine' attribute should be enabled. -The pattern sqeuence of LP8501 is same as LP5523. +The pattern sqeuence of LP8501 is similar to LP5523. However pattern data is specific. Ex 1) Engine 1 is used echo 1 > /sys/bus/i2c/devices/xxxx/select_engine |