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

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

Hi,

Am 2013-04-28 23:07, schrieb Bakul Shah:
> On 28 Apr 2013 22:01:17 +0200 "Holger Sebert"
> <Holger.Sebert@ruhr-uni-bochum.de> wrote:
>> I did a quick hack on kbd.c and could make the "<,>,|" key
>> work. Awesome! Thank you all for your help.
>
> What was the fix?

The relevant section from kbd.c is

	if(kbscan->esc1){
		c = kbtabesc1[c];
		kbscan->esc1 = 0;
	} else if(kbscan->esc2){
		kbscan->esc2--;
		return;
	} else if /* ... */

The logic that is implemented here implies that
sequences of the form "e0 xx" cannot be combined
with a modifier like Shift or AltGr.

Since "<,>,|" is the only key on my keyboard for
which this is relevant, I simply changed the first
line to

	if(kbscan->esc1 && c != 0x58){
              /*...*/


This way, the sequence "e0 58" is actually interpreted
as "58", so that Shift and AltGr again work.

Of course, this is not a clean solution at all. But at
least it does not change the semantics of the kbmap-file.

>
>> In the 'bcm' directory some modules refer to 'omap' although
>> they apparently mean 'port', like this:
>>
>> #include "../omap/random.c"
>>
>> which should be
>>
>> #include "../port/random.c"
>
> Files from ../port are automatically picked up so you don't
> need files in bcm that just include ../port/something.
>
>> Furthermore, I noticed that the build system would build _all_
>> of the kernel each time I invoke 'mk', even though only little
>> or nothing has changed. Is this the way it is intended to be?
>
> Looks like your source files have a modification time newer
> than the current time (as seen on your machine).  Either
> manually set date/time on boot (if not connected to the net)
> or set
> 	TIMESYNCARGS=(-n pool.ntp.org)
> in /rc/bin/termrc.local.  Pick a public ntpserver near you
> instead of pool.ntp.org.

Oh yes, did not think about the missing RTC on the Pi. Thanks
for the solution!

Best,
Holger