Stefan Sauer wrote: > when using multi channel audio interfaces, it would be awesome to be > able to label the ports to make it easier to select the right (pair of) > channels in the software. ALSA has no mechanism to associate names to multiple channels belonging to the same PCM device. > Likewise for multi midi interfaces (like the classic emagic amt8). It is possible for each port to have its own name: $ aplaymidi -l Port Client name Port name ... 40:0 SC-8820 SC-8820 Part A 40:1 SC-8820 SC-8820 Part B 40:2 SC-8820 SC-8820 MIDI However, only the port's owner can change the name, so the USB audio driver would have to know about it. > Are there any thoughts on this to support this on the Alsa level? These labels should survive a reboot, but are not a property of the hardware, so they must be stored somewhere else. It is not clear who should be responsible for that. And if there were a new API, most programs would not know of it. Regards, Clemens _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user