Re: bruby and multimedia keyboards

[Svetoslav S. <sv...@gm...>]

> 
> >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.

IIRC some months ago Aivils added :
echo "+$PHYS"  > "/proc/bus/console/$VT/keyboard"
to join additional keyboard interfaces, so you'll basicly have to
use a modified input.agent to map the xxxx..../input1 (multimedia key
interface) to
the primary keyboard interfaces xxxx...../input0 and then XFree will get 
all key events, you only have to create your custom key map to map
the additional keys to XFree events(XF86_WWW,XF86_MAIL,....)
and then configure XFree/WindowManager to use them, 
ie start evolution on pressing XF86_MAIL, Mozila on XF86_WWW, ...

you may take a look at
:
http://tldp.org/HOWTO/XFree-Local-multi-user-HOWTO/app_ruby_init_input_agent.html

> /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).

svetljo

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