On Fri, 18 Dec 2015, Philip Yassin wrote:
I stumbled upon this on Len's website and was wondering if it works with an USB
keyboard in a recent distro..? Because quite frankly this is exactly what I need
:)
Yes, I have used this with two USB keyboards as two controllers to test
the mackie control code in Ardour. My main PC keyboard is a PS/2 so I had
three plugged in at a time.
It will also work with Bluetooth keyboards... for example a Wii
controller.
Anything that generate an event* file that looks like a keyboard.
It does take a little bit of looking to find out which /dev/input/event*
file to use as device. I have found using the /dev/input/by-id/* files is
more specific... the by-path may be better.
I have not touched tha code since I got it working as it is pretty basic
and just works. The worst part is dealing with what is normally a root
owned device from userland because jack is userland. Basically, Create an
input group, add yourself to it, drop the supplied file into whatever
directory your distro merges udev commands. And the input devices will be
owned by the input group.
At the time I did this, I had just started coding again and the Jackd API
was much easier to understand. I would be better in the long run to make
the output/input an ALSA MIDI device. (safer) Though it seems there is a
way to monitor key strokes that the xserver is seeing too. Be careful in
other words.
--
Len Ovens
www.ovenwerks.net
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