pe...@easthope.ca wrote: > surround21:CARD=Set,DEV=0 > and > surround40:CARD=Set,DEV=0 > aren't atomic names. Is the syntax and semantics explained in > documentation? > > No surround22, surround23 ... surround39 evident here. How does ALSA > derive or find the names and numbers?
you hopefully know that sourround21 stands there for 2+1 and 40 stands for 4 outputs Also it is explained in documents like for example on the alsa-project web site https://alsa-project.org/wiki/DeviceNames I sometimes wonder if some peoples google is broken. For me it worked quite well. I type in "ALSA device name" another excellent reading is https://wiki.archlinux.org/title/Advanced_Linux_Sound_Architecture -- FCD6 3719 0FFB F1BF 38EA 4727 5348 5F1F DCFE BCB0