Hi all,

(I'm cross posting this to the main csound list as Istvan is there
(this applies to the ALSA driver and possibly csoudn5gui) as well as
others who may be doing hosts that use csound)

I've written code to discover cards for drivers for doing dropdowns in
blue to easily pick what card to use.  The code is in Java and is
available at:

http://www.kunstmusik.com/DriverUtils.java

The code was done quickly over a few days so is a bit ugly, but it is working.

For most of the drivers, I am simply running Csound with an invalid
device num and then parsing the output, which one should be able to do
from an API program.

For ALSA, and this might of interest to add as way to enumerate
devices for both audio and midi, I am parsing /proc/asound/pcm and
/proc/asound/seq/clients.  I did this without having had a chance to
find documentation and mostly looking at what other programs showed
for ALSA devices (aconnect, xmms).  The assumption I used for MIDI is
that ports for clients with capital "W" are writable and available for
writing, and those with capital "R" are readable and available.  If
anyone knows if that is incorrect, please let me know.

Still working on figuring out a solution for Jack (which I think may
be possible to do if I just try running csound a number of times with
different sample rates to match up with jackd and see if I get output,
though I'm trying to find a simpler solution).

Otherwise, hope this code can be useful for others.  For API users, if
API methods are added to iterate devices for a driver, then you can
ignore this email. :P

steven


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