Hi Ingo and Jean-Michel, Thank you both for your replies! My system is still stuck in pre-udev pre-history, so I will have to wait until I can try out the udev rules trick. All the best Michael On Thu, Feb 15, 2007 at 10:50:36AM +0100, Ingo Müller wrote: > Hi! > > On the alsa-devel mailing list, there was a thread recently about how to > use udev to distribute card indexes. Maybe this could help you. > > http://thread.gmane.org/gmane.linux.alsa.devel/44498 > > Regards, Ingo > > > Michael Lara schrieb: > > Hello, > > > > Is it possible to define the removable card as the default in a system with > > a permanent, internal card and a removable (ie, USB) one? I know about > > passing 'index=i' to the driver modules, but I am having a hard time > > figuring out how to use that mechanism when one of the cards is removable. I > > would like to use the following simple rule: > > > > If the removable (usb) card is connected to the system, make it the default. > > Otherwise, use the internal card. > > > > The trouble is that, once the corresponding driver modules have been loaded > > with a given index number: > > > > /sbin/modprobe snd-usb-audio index=0 [for the removable card] > > /sbin/modprobe snd-intel8x0 index=1 [for the internal card] > > > > With this setup, aplay fails to produce sound when the removable card is not > > present since default is not set (there is no card with index 0). > > > > Can I somehow tell alsa (in /etc/asound.conf) that the card with the *lowest > > index* (ie, not necessarily the one with index=0) should be used as 'default'? > > > > Thanks in advance for any help > > > > Michael > > > ------------------------------------------------------------------------- > Take Surveys. Earn Cash. Influence the Future of IT > Join SourceForge.net's Techsay panel and you'll get the chance to share your > opinions on IT & business topics through brief surveys-and earn cash > http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV > _______________________________________________ > Alsa-user mailing list > Alsa-user@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/alsa-user ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
