nanogui: Thread: nano-X Keyboard Problem (Repeat, Key-Up Event)

Hello,

I'm using a PXA270 based embedded system with Kernel 2.6.14 and nano-X 
(CVS Version pre 0.92, 11/2005 - ok, I will test it with the lastest CVS 
sources).
I'm using the TTYKDB keyboard driver (kbd_tty.c). I can stop the 
key-repeating with 'setterm -repeat off > /dev/tty0'. What I am missing 
are the key-up events (GR_EVENT_TYPE_KEY_UP).

When I use the SCANKBD (kbd_ttyscan.c) I got these events, but I can not 
stop the key-repeating function.

I looked at the sources but I was not able to find out the important 
differences between this drivers. Can anyone give me a hint?

So, what I want is:
- add the GR_EVENT_TYPE_KEY_UP to the TTYKBD driver
OR
- suppress the repeating GR_EVENT_TYPE_KEY_DOWN events from the SCANKBD 
driver.

Any suggestions?

Thank you very much.

Regards
Klaus

Hi!

Klaus Fürth schrieb:

> I'm using a PXA270 based embedded system with Kernel 2.6.14 and nano-X 
> (CVS Version pre 0.92, 11/2005 - ok, I will test it with the lastest 
> CVS sources).

Still the same with the today's CVS Version.
Using TTYKBD, I do not get the KEY_UP events,
using SCANKBD, I can't stop the keyboard's repeating function.

Any Ideas?

Thank's in advice,

Regards
Klaus

: So, what I want is:
: - add the GR_EVENT_TYPE_KEY_UP to the TTYKBD driver

You'll never get that, since the kernel doesn't tell you when the
key goes back up; this is why we wrote the SCAN driver in
the first place.



: OR
: - suppress the repeating GR_EVENT_TYPE_KEY_DOWN events from the SCANKBD 
: driver.

Likely you need to replace the scan code header file, this is 
included in the driver: drivers/kbd_scan.c.  Grab a PC manual and
determine what the code is for repeat, I think its just to
0x80 bytes in a row, indicating two keypresses without an upcode,
or vice versa.  If you kernel scancode configuration is too out
of whack with what is in the include .h file for the scancodes, this
might be an issue...putting debug code in the driver is my
first suggestion.

Regards,

Greg

Hello,

thanks for your answer. I modified the kbd_scan.c file to avoid getting 
repeated keydown-events. It's just a hack, but I think this will work 
for me.

Regards
Klaus