Dear Lee, I am really new to Alsa, so my opinion may not matter: I have three sound card : one Edirol UA-25 and two Terratec Aureon USB MK2. The problem is that when unplugin one or several devices, the plughw:x,y number may change. This is the main problem. In the best approach, I would prefer to be able to set plughw:x,y numbers once for all. I hope this can be done using Udev, but I am not sure. Would it be possible to address devices using product IDs directly. I know this sounds incredible, but each device usually has a unique ID somewhere. So in place of writing plughw:x,y, we would write productid:xyzzer. This would allow plughw:x,y to continue to behave like today. The only difference is that users would really have a unique way of naming hotplugable devices. Kind regards, Jean-Michel > Lately there's been a lot of discussion on linux audio lists about the > best way to handle the default device, in the face of multiple cards > some of which could be hot-pluggable and might even be identical. > > Module indices can help in a pinch but are no solution - they require > root access and can't change the default device without requiring all > sound apps to be restarted. > > gnome-sound-properties comes closest to solving the problem - it > creates an .asoundrc that defines the "default" device for each user > (compare KDE which does not even try). But if the default device is > defined to a USB audio interface, when the device is unplugged apps > will fail rather than falling back to the next available device. > > How hard would it be to extend ALSA to allow defining a default PCM > that automatically falls back to the first device present if > unplugged? > > As far as I can tell this would solve the ALSA device selection > problem completely (ignoring OSS emulation which is increasingly > irrelevant with the new Flash and Skype releases). ------------------------------------------------------------------------- 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-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
