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Diffstat (limited to 'Documentation/leds/leds-blinkm.rst')
| -rw-r--r-- | Documentation/leds/leds-blinkm.rst | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/Documentation/leds/leds-blinkm.rst b/Documentation/leds/leds-blinkm.rst index 2d3c226a371a..647be1c6c552 100644 --- a/Documentation/leds/leds-blinkm.rst +++ b/Documentation/leds/leds-blinkm.rst @@ -13,9 +13,31 @@ The device accepts RGB and HSB color values through separate commands. Also you can store blinking sequences as "scripts" in the controller and run them. Also fading is an option. -The interface this driver provides is 2-fold: +The interface this driver provides is 3-fold: -a) LED class interface for use with triggers +a) LED multicolor class interface for use with triggers +####################################################### + +The registration follows the scheme:: + + blinkm-<i2c-bus-nr>-<i2c-device-nr>:rgb:indicator + + $ ls -h /sys/class/leds/blinkm-1-9:rgb:indicator + brightness device max_brightness multi_index multi_intensity power subsystem trigger uevent + +Hue is controlled by the multi_intensity file and lightness is controlled by +the brightness file. + +The order in which to write the intensity values can be found in multi_index. +Exactly three values between 0 and 255 must be written to multi_intensity to +change the color:: + + $ echo 255 100 50 > multi_intensity + +The overall lightness be changed by writing a value between 0 and 255 to the +brightness file. + +b) LED class interface for use with triggers ############################################ The registration follows the scheme:: @@ -79,6 +101,7 @@ E.g.:: -as of 6/2012 +as of 07/2024 dl9pf <at> gmx <dot> de +jstrauss <at> mailbox <dot> org |