Re: bruby and multimedia keyboards

[Aivils S. <Aiv...@un...>]

>I just switched my computer running backstreet ruby on a 2.4.22 kernel to
two
>(nearly) identical Logitech USB keyboards. These provide access to their
>extended keys through a second logical USB keyboard device. So far I did
not
>find a way to join two logical keyboard devices on a single VT to be able
to
>grab the scancodes of all keys. Did I miss something or is it still not
>possible with (b)ruby?
>If it's not yet implemented, how difficult would it be to add this
>functionality? Would I have a chance to do it in "finite" time if I have
no
>previous experience with Linux's (b)ruby input layer?

Unfortunately nobody done with these keys. Typicaly USB multimedia
keyboards
use secondary USB interface especially for multimedia keys. You can parse
/proc/bus/input/devices and make sure by Yourself. One keyboard ware have
two physicaly interfaces, each have /dev/input/eventXX device.

/dev/input/eventXX is done. You may download CVSed evtest.c and test
Your multimedia keys.

I don't know any userland util , which read /dev/input/eventX and do user
configurable orders.
I don't know any userland util , which read /dev/vc/XX multimedia keypress
and do some important.
Under ruby 2nd USB keyboard interface have another VT and You do not
recieve keypress from multimedia keys. Typicaly mutimedia keypresses are
ignored by keyboard driver. TTY may recieve multimedia keypresses as 4 - 6
keycode series. That series already decoded by /dev/input/eventXX layer.

If anybody has a developer power, then is possible merge evtest.c and
http://xkeymouse.sourceforge.net/ utils and so catch multimedia keys.

AFAIK eventXX layer works indenticaly with bunch of keyboards fitted with
multimedia keys (Microsoft, Logitech and so on).

Aivils Stoss