Unsupported serial remote: help writing driver

[Niccolo R. <li...@ri...>]

Hello,

I have a remote control connected to the serial port on my Linux 
box.

The remote is a Kanam Accent, the receiver is based on the 
AT89C2051-24PI chip, and it seems that it communicates on the 
serial port at 2400 8N1.

I would like to know the tech details of the existing drivers 
(e.g. pinsys or pixelwiev), so I can start modifying the closer 
one. Is there a wiki or some references?

I recorded the serial with minicom:

- The bytes received for each key are variables in quantity. 
- Holding a key pressed, after the code I receive a sequence 
  of 30 FE 30 FE ...
- Sometimes the code is prefixed with a byte where the highest
  bit is set.

Does some existing driver resemble this behavior?

Here it is an excerpt of the dump:

1       e0 4b 4b 42 86 08 4b 48 08 43 42 06 30 fe
2       f0 4b 4b 42 86 08 43 43 4b 08 43 42 06 30 fe
3       ff 4b 4b 42 86 08 43 4b 43 42 06 30 fe
4       fc 4b 4b 42 86 08 4b 43 08 48 42 06 30 fe
5       c0 4b 4b 42 86 08 43 4b 08 48 42 06 30 fe
6       80 4b 4b 42 86 08 4b 48 42 06 30 fe
7       f8 4b 4b 42 86 08 4b 08 4b 42 b6 08 ff 30 fe
8       f8 4b 4b 42 86 08 43 43 5a 43 5a 86 ff 30 fe
9       f0 4b 4b 42 86 08 43 5a 48 5a 86 ff 30 fe
0          4b 4b 42 86 08 43 4b 48 08 08 48 02 80 30 fe
win     ff 4b 4b 42 86 08 4b 4b 08 08 48 02 80 30 fe
menu       4b 4b 42 86 08 48 4b 5a 86 08 ff 30 fe
vol-    f0 4b 4b 42 86 08 43 42 b6 2d 08 08 ff 30 fe
vol+    fc 4b 4b 42 86 08 08 4b 48 43 42 06 30 fe
...

Note: I used a patched version of pinsys driver by Leandro 
Dardini, but with this patch the repeat does not work.

-- 
Niccolo Rigacci
Firenze - Italy

Iraq, missione di pace: 55136 morti - www.iraqbodycount.net