Updates LEDs

[hh]

Similar to https://github.com/lkundrak/btkbdd/blob/8d01a5dd3fcd13448ceb047ac52210e3470d9010/keyb.c#L44

(i'm reading through the C to figure out how it might be done)

[taoso]

tried but failed

[hh]

I'm thinking on this now.

[micsurin]

I added the LED output parameters to the HID report descriptor, and so my Linux box sends the messages correctly. Tested with an iPad, and unfortunately it does not set the LED's.

Just need to write the LED update methods now.

How far did you get @lvht (I know this was long ago)?