Keyboard: Difference between revisions
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[[Image:PandoraAndPyraFull.jpg | 600px]] | [[Image:PandoraAndPyraFull.jpg | 600px]] | ||
* '''Comparison between [[Pyra]]'s and [[OpenPandora|Pandora]]'s Keymat ''' | * '''Comparison between [[Pyra]]'s and [[OpenPandora|Pandora]]'s Keymat ''' | ||
= Keyboard Matrix = | |||
== Keyboard matrix and button assignment == | == Keyboard matrix and button assignment == | ||
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[[Image:PyraTCA8418Matrix.png | 600px]] | [[Image:PyraTCA8418Matrix.png | 600px]] | ||
= Keyboard Backlight = | |||
can be controlled in intensity by /sys/class/backlight device | |||
Revision as of 20:53, 30 March 2016
- Pyra's Keyboard Lighted by one of the Prototype Boards.
Keyboard Matrix
Keyboard matrix and button assignment
- fixed by hardware: buttons and maeanders
- connected to specific gpios and matrix lines
- describes specific hardware revision
Software assignment by Linux Kernel
- describes KEY_code for specific software revision (here letux-4.5.0 and later)
- assumes specific hardware revision (here 5.0/5.1)
- default Device Tree pyra-mainboard.dtsi
- can be changed by modified device tree
TCA8418 Matrix
Keyboard Backlight
can be controlled in intensity by /sys/class/backlight device