Re: [LAD] MIDI in jack

On Thu, 10 Jul 2014, Will Godfrey wrote: Hacking udev turned out to be quite easy. created a file: /lib/udev/rules.d/midikb.rules ( it should actually be 90-midikb.rules to fit with all else, but it gets loaded after all else so it works this way too) It has one line: KERNEL=="event*", GROUP="input", MODE="0660" And now after boot I have: $ ls -l /dev/input/* crw-rw---- 1 root input 13, 64 Jul 10 15:35 /dev/input/event0 crw-rw---- 1 root input 13, 65 Jul 10 15:35 /dev/input/event1 crw-rw---- 1 root input 13, 66 Jul 10 15:35 /dev/input/event2 crw-rw---- 1 root input 13, 67 Jul 10 15:35 /dev/input/event3 crw-rw---- 1 root input 13, 68 Jul 10 15:35 /dev/input/event4 crw-rw---- 1 root input 13, 69 Jul 10 15:35 /dev/input/event5 crw-rw---- 1 root input 13, 70 Jul 10 15:57 /dev/input/event6 crw-rw---- 1 root input 13, 71 Jul 10 15:58 /dev/input/event7 6 is my extra USB kb, 7 is part of it too, but I am not sure what... maybe the missing keys from event6? (though why would U and I be separate?) Anyway, event2 is my system ps/2 kb and event3 is the ps/2 mouse. Event4 is labeled platform-eeepc-wmi-event and I think event 5 is my power button. (my system keyboard is an old AT ... with AT/XT switch even) Anyway, actkbd -s -d /dev/input/event6 displays my scancodes like this: Keys: 35 Keys: 34+35 The way it works (with these options and no config for actkbd) is that key 35 was pressed first and 34 after, but before 35 was released. If I then release 35, then 34 shows on it's own. So each event (press or release) shows what keys are still active. I do not have "grab" turned on and so the actual key press is still being fed to Xorg as well. I can hold the key long enough for repeat to start for Xorg, but actkbd does not show all of the repeats, just the original key press. I do not know if this is unique to USB kb or works with AT kb as well. ps/2 keyboards have three modes, 1 = xt (not used) 2 = at (everything can do this) 3 = ps/2 (more options such as turning typematic off) Not sure what USB does, but it probably looks like a ps/2 to be able to work at boot time. -- Len Ovens www.ovenwerks.net