[LAD] Finding ALSA sequencer client/port numbers

[Fons Adriaensen]

On Fri, Apr 22, 2011 at 04:51:53PM -0400, Paul Davis wrote:
> On Fri, Apr 22, 2011 at 4:45 PM, Fons Adriaensen <fons at linuxaudio.org> wrote:
> > Hello all,
> >
> > after reading ASLA docs for some hours I've not found an
> > answer to the following:
> >
> > Given the ALSA sequencer client and port _names_, find the
> > numbers required to set up a connection (a 'subscription'
> > in ALSA lingo).
> 
> ALSA MIDI ports have names?

They do. For example: 

fons at zita1:~> aconnect -i

client 0: 'System' [type=kernel]
    0 'Timer           '
    1 'Announce        '
client 14: 'Midi Through' [type=kernel]
    0 'Midi Through Port-0'
client 20: 'TerraTec EWS88MT' [type=kernel]
    0 'TerraTec EWS88MT MIDI'
client 24: 'MPU-401 UART' [type=kernel]
    0 'MPU-401 UART MIDI'


So given e.g.  'TerraTec EWS88MT','TerraTec EWS88MT MIDI'
how do I find 20,0 (from within an application) ?

Or in other words, what is ALSA's get_port_by_name() ?

Ciao,

-- 
FA