[Jack-Devel] -d firewire -X alsaraw fails?

[David Kastrup]

David Kastrup <dak at gnu.org> writes:

> jackd -d firewire -X alsaraw -r 96000 -p 512
>
> port_name "firewire_pcm:0005950400400fc2_midi 0_in" already exists
> driver: cannot register port for firewire_pcm:0005950400400fc2_midi 0_in
> Cannot attach audio driver
> JackServer::Open failed with -1
> no message buffer overruns
> Failed to open server
>
> Uh, port already exists?  The Firewire ports are not visible from Alsa
> (I have blacklisted snd_dice since it does not play well with the
> Alesis io|14) and there just is (seq and raw, respectively):
>
> dak at lola:/usr/local/tmp/lilypond$ aplaymidi -l
>  Port    Client name                      Port name
>  14:0    Midi Through                     Midi Through Port-0
>  20:0    UM-4                             UM-4 MIDI 1
>  20:1    UM-4                             UM-4 MIDI 2
>  20:2    UM-4                             UM-4 MIDI 3
>  20:3    UM-4                             UM-4 MIDI 4
> dak at lola:/usr/local/tmp/lilypond$ amidi -l
> Dir Device    Name
> IO  hw:1,0,0  UM-4 MIDI 1
> IO  hw:1,0,1  UM-4 MIDI 2
> IO  hw:1,0,2  UM-4 MIDI 3
> IO  hw:1,0,3  UM-4 MIDI 4
>
> but those have nothing to do with the jackd error (right?).  So jackd
> somehow gets in a loop or something?

Ok, so it's rather

jackd  -X alsarawmidi -d firewire -r 96000 -p 512

but you wouldn't know from looking at the manual page.  So what's with
the useless error message and the useless manual page?

-- 
David Kastrup