Hauke Westemeier wrote: > the people of HifiBerry told me (see linked thread) that there is no > "THE driver" and therefore I can not provide its source code. Well, the source code files appear to be: sound/soc/bcm/hifiberry_dacplus.c sound/soc/bcm/bcm2835-i2s.c sound/soc/codecs/pcm512x.c As far as I can tell, there is nothing wrong with how these drivers handle the number of channels. > What I know that > speaker-test -t wav -c 2 > and > mplayer -ao alsa:device=hw=1.0 /usr/share/sounds/alsa/Front_Right.wav > work but > aplay -D hw:1,0 /usr/share/sounds/alsa/Front_Right.wav > and > aplay -D plughw:1,0 /usr/share/sounds/alsa/Front_Right.wav > don't. > So for me it looks like there is something wrong with aplay. mplayer does its own sample conversion. aplay calls the ALSA API in the obvious way, just like speaker-test, so I'm not sure why one works and one does not. I suspect there might be a bug in the ALSA framework. Regards, Clemens ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Alsa-user mailing list Alsa-user@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-user
