[USRP-users] problem with aplay on E3xx

Jason Matusiak jason at gardettoengineering.com
Thu Oct 26 12:45:58 EDT 2017


Just want to use a flowgraph that was working fine on an older 
(load-wise) SG1 E310 system on an up-to-date SG3 E312 system and it 
throws up....

if I were to type: aplay -i to start up the app, I get:
root at ettus-e3xx-sg3:~# aplay -i
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/confmisc.c:768:(parse_card) 
cannot find card '0'
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/conf.c:4260:(_snd_config_evaluate) 
function snd_func_card_driver returned error: No such file or directory
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/confmisc.c:392:(snd_func_concat) 
error evaluating strings
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/conf.c:4260:(_snd_config_evaluate) 
function snd_func_concat returned error: No such file or directory
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/confmisc.c:1251:(snd_func_refer) 
error evaluating name
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/conf.c:4260:(_snd_config_evaluate) 
function snd_func_refer returned error: No such file or directory
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/conf.c:4739:(snd_config_expand) 
Evaluate error: No such file or directory
ALSA lib 
/home/balister/docker-work/jethro/jethro-test/build/tmp-glibc/work/armv7ahf-vfp-neon-oe-linux-gnueabi/alsa-lib/1.0.29-r0/alsa-lib-1.0.29/src/pcm/pcm.c:2267:(snd_pcm_open_noupdate) 
Unknown PCM default
aplay: main:730: audio open error: No such file or directory


Any idea what is going on and why it can't find any cards?  Also, one 
more thing I ran was:
root at ettus-e3xx-sg3:~# alsactl init
alsactl: init:1758: No soundcards found...





More information about the USRP-users mailing list