[Linphone-developers] Mediastreamer could not attach mixer to card

[Denny Wright]

Hi all,

I get the following when ms_init() runs. I found a reference to this error in the archive and it was resolved by editing alsa.conf (or perhaps /etc/asound.conf?)

http://lists.gnu.org/archive/html/linphone-developers/2009-07/msg00064.html

Unfortunately, I haven't figured out what the edits should be. Does anyone have any suggestions?

Thanks
Denny

=============================================================
ortp-message-Registering all filters...
ortp-message-Registering all soundcard handlers
ortp-message-Card ALSA: default added
ALSA lib conf.c:4600:(snd_config_expand) Unknown parameters 0
ALSA lib control.c:902:(snd_ctl_open_noupdate) Invalid CTL default:0
ortp-warning-Could not attach mixer to card: Invalid argument
ortp-message-Card ALSA: omap3530lv_som added
ortp-message-Card OSS: /dev/dsp added
ortp-message-Registering all webcam handlers
ortp-message-Webcam StaticImage: Static picture added
ortp-message-Loading plugins
ortp-message-Cannot open directory /usr/lib/mediastreamer/plugins: No such file
or directory
ortp-message-ms_init() done
=============================================================

I have an OMAP ARM board with a TI TPS65950 (i.e. TWL4030) and we're only using a portion of the audio channels. Here's some of my ALSA config (the mixer works fine with ALSA). What other information can I provide?

==========================================
# cat /proc/asound/cards
 0 [omap3530lvsom  ]: twl4030 - omap3530lv_som
                      omap3530lv_som (twl4030)
# aplay -L
default:CARD=omap3530lvsom
    omap3530lv_som,
    Default Audio Device
null
    Discard all samples (playback) or generate zero samples (capture)
# amixer controls
numid=4,iface=MIXER,name='Master Playback Switch'
numid=6,iface=MIXER,name='Analog Capture Volume'
numid=3,iface=MIXER,name='DAC2 Analog Playback Volume'
numid=2,iface=MIXER,name='DAC2 Digital Coarse Playback Volume'
numid=1,iface=MIXER,name='DAC2 Digital Fine Playback Volume'
numid=5,iface=MIXER,name='TX2 Digital Capture Volume'
==========================================