Hi Clemens, Before I reply below; with your instructions which due to my lack of familiarity I only partially grasp, I've configured a setup where Input ports are working but the output ports aren't open/opening. The output ports in this simple setup are used to transmit MTC generated by Ardour back to the mixing consol (Tascam DM-24) in order to sync the Ardour and DM-24 transports. To be half way there is very encouraging. Anyway, I'll reply to your suggestions below. --- Clemens Ladisch <clemens@xxxxxxxxxx> wrote: > Well, what I said earlier isn't entirely correct, > accessing > /dev/snd/midiC1D0 will open the first free port. > Connecting ports will > open them, so the first free port in your case was > probably Port 8. > > And when you connect port x to port 0, data from the > device at port x will > be written to port 0, but you won't be able to read > it from port 0 because > MIDI Out 1 and MIDI In 1 are different ports. Here's what I've got and you'll notice "Output: NONE". I've been staring at all this for awhile and am not improving my understanding. >./rawmidi -v -i hw:3,0 -I /dev/snd/midiC3D0 Using: Input: device hw:3,0 Output: NONE snd_rawmidi_open hw:3,0 failed: -2 Read midi in Press ctrl-c to stop read f0 read 7f read 01 read 06 read 01 read f7 The "read:_N" are an mmc stop instruction. BTW, 'ctrl-c' fails to exit rawmidi, I have 'kill...'. Anyway, at this point I need a device with both the Input and Outputs that are open. > The ALSA library hides the device files behind > device names. Instead of > accessing the ALSA device files directly, you are > supposed to use some > program which uses the ALSA library. Does this apply to applications? If yes, then Ardour accessing the Alsa device="/dev/snd/midiC3D0" directly should be changed to use the Alsa library. Yes, no? > There is an ugly test program which can display the > data from an ALSA > rawmidi port in the alsa-lib/test directory. Please > go there, run "make > rawmidi", and start it with > ./rawmidi -v -i hw:1,x It's telling us a story. :) I appreciate all the help, ron > HTH > Clemens > > __________________________________ Do you Yahoo!? The New Yahoo! Search - Faster. Easier. Bingo. http://search.yahoo.com