Re: [9fans] German USB keyboard on Raspberry Pi

["Holger Sebert" <Holger.Sebert@ruhr-uni-bochum.de>]

Hi,

Am 24.04.13 22:56, schrieb Bakul Shah:
> On 24 Apr 2013 21:25:13 +0200 "Holger Sebert" <Holger.Sebert@ruhr-uni-bochum.de> wrote:
>>
>> I have tried it out: The driver says
>> "sc: e0 56" when pressing the "<"-key.
>
> This means a two char sequence: e0, 0x56 is stuffed into the
> kernel device kbin. Ultimately thsi will map to the value in
> kbtabesc1[0x56]. Now kbtabesc1 is table 2 in a kbmap so we are
> looking for an entry that starts with
> 	2	86	...	# 86 == 0x56
> In /sys/lib/kbmap/de I see
> 	2       86      0
> This explains why you don't see anything.  What you want to do
> is to copy this file to, say, de2 and replace the above with
> 	2	86	'<
> And then put the following in $home/lib/profile
> 	cat /sys/lib/kbmap/de2 > /dev/kbmap
> Probably under 'case terminal'.

Thanks alot! This gets the '<'-key going.

I have tried to put the key-with-modifier (Shift and AltGr)
chars into the kbmap but with no result. "3 86 '>" and "4 86 '|"
get all ignored.

I looked into kbd.c and it seems the driver does not support
modified states of extended scan codes of the form "e0 ??".

A hack would probably be possible, but maybe I am overlooking
something?

If not, how do I recompile and install the kbd-module on the
Raspberry Pi? I changed kbd.c for testing purposes and
executed "mk install" in the directory /sys/src/9/. Although
the build succeeded the changes did not seem to be incorporated.

Sorry for drifting off topic here ...

Best,
Holger