On Mon, Jun 15, 2015 at 3:10 AM, Jacek Anaszewski <j.anaszewski@xxxxxxxxxxx> wrote: > On 06/15/2015 10:48 AM, Matt Ranostay wrote: >> >> On Mon, Jun 15, 2015 at 1:15 AM, Jacek Anaszewski >> <j.anaszewski@xxxxxxxxxxx> wrote: >>> >>> Hi Matt, >>> >>> On 06/13/2015 06:17 AM, Matt Ranostay wrote: >>>> >>>> >>>> Some cap11xx devices have LEDs that can be controlled from userpace >>>> and via triggers. Document their use and functionality here. >>>> >>>> Signed-off-by: Matt Ranostay <mranostay@xxxxxxxxx> >>>> --- >>>> .../devicetree/bindings/input/cap11xx.txt | 23 >>>> ++++++++++++++++++++++ >>>> 1 file changed, 23 insertions(+) >>>> >>>> diff --git a/Documentation/devicetree/bindings/input/cap11xx.txt >>>> b/Documentation/devicetree/bindings/input/cap11xx.txt >>>> index 7d0a300..ef89c27 100644 >>>> --- a/Documentation/devicetree/bindings/input/cap11xx.txt >>>> +++ b/Documentation/devicetree/bindings/input/cap11xx.txt >>>> @@ -38,6 +38,11 @@ Optional properties: >>>> defaults. The array must have exactly >>>> six >>>> entries. >>>> >>>> + linux,led-brightness: Defines the ON brightness when the >>>> optional LED >>>> + functionality is used. Valid values are >>>> 0-15. >>>> + By default a value of 15 is set. >>> >>> >>> >>> The ON brightness is controlled with the 'brightness' sysfs property. >>> The levels start from 1 and 0 turns the LED off. I think that this >>> property is useless then. >>> >> >> Yes but this defines the brightness for the ON state.. since it can be >> from 0-100% duty cycle. > > > Doesn't 0 mean that LED is off? If so, then valid values should start > from 1. > Ok makes sense since a 0% duty cycle is useless :) > >>> >>>> + >>>> Example: >>>> >>>> i2c_controller { >>>> @@ -55,5 +60,23 @@ i2c_controller { >>>> <105>, /* KEY_LEFT */ >>>> <109>, /* KEY_PAGEDOWN */ >>>> <104>; /* KEY_PAGEUP */ >>>> + >>>> + linux,led-brightness = <15>; >>>> + >>>> + usr@0 { >>>> + label = "cap11xx:green:usr0"; >>>> + reg = <0>; >>>> + }; >>>> + >>>> + usr@1 { >>>> + label = "cap11xx:green:usr1"; >>>> + reg = <1>; >>>> + }; >>>> + >>>> + alive@2 { >>>> + label = "cap11xx:green:alive"; >>>> + reg = <2>; >>>> + linux,default_trigger = "heartbeat"; >>>> + }; >>>> }; >>>> } >>>> >>> >>> -- >>> Best Regards, >>> Jacek Anaszewski >> >> > > > -- > Best Regards, > Jacek Anaszewski -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html