[Arm-netbook] IC for analog and digital buttons (EOMA-68)

Luke Kenneth Casson Leighton lkcl at lkcl.net
Tue Aug 12 08:52:33 BST 2014

On Mon, Aug 11, 2014 at 11:49 PM, Henrik Nordström
<henrik at henriknordstrom.net> wrote:
> mån 2014-08-11 klockan 15:46 +0100 skrev Luke Kenneth Casson Leighton:
>>  c) part of that area involves the device-tree "merging" code (that
>> will need to be written), so that the CPU Cards can dynamically detect
>> what they're plugged into, load the Device-Tree fragment out of the
>> EEPROM and go from there.
> Beaglebone have something like that in their kernels with device tree
> overlays loaded runtime based on eeprom contents of connected "shields".

 oh gooood, whew.

>>  publishing "buttons" via a USB-HID, and publishing the analog
>> joystick again as a USB mouse, in theeeoorrryyy "Random OS Mk VII"
>> *might* actually work.
> I might even say SHOULD work, that's the point of having USB standards.
> But not all buttons might be mapped to meaningful events out of the box.


> And joystick do have it's own USB-HID profile.

 oh, duh :)  thank you for pointing that out.


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