On Wed, 2006-07-05 at 20:04 +0200, [EMAIL PROTECTED] wrote: > Hello, > > > *** description : > I want to record wav files from several *identical* (except for serial > number) usb audio soundcard. > > My sound cards must appear in the right order. For example, physical > card called n°1 must always correspond to the same name > (/dev/snd/pcmC1D0c for example), whatever is the pluging order. > > This part is done easily with UDEV and is working. > > > *** question : > Now my problem is that no one seems to use /dev/snd/pcmCxDx to access > cards ? > > For example, I can't find how to tell to arecord to use > /dev/snd/pcmC1D0c device. > arecord use -D parameter with card and device number (-D hw:1,0 for > example), but these parameters are *not* affected by UDEV. So my UDEV > rules are useless for arecord. > > Same for other programs I found : ecasound, ... each program seems to > access the cards using hw:x,x parameters and not the /dev name. >
That's not how ALSA works. Apps are not supposed to directly access /dev/snd/pcm*. The interface is via alsa-lib. > *** in other words : > I just want to know how to record a wav file from a given physical card > ; knowing that I have up to 5 identical cards except for the serial number ? > > > I have done a lot of search on google and the mailing list, and I was > unable to find a solution. The "index=" parameter when loading module is > not applicable to me because the cards are the same. Sorry if my problem > has been already asked. You should be able to access the cards by serial number. What are the contents of "/proc/asound/cards"? Lee Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-user mailing list Alsa-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/alsa-user
