[alsa-devel] Transmitting ac3 content via spdif

Fabio Estevam festevam at gmail.com
Fri Oct 26 21:30:49 CEST 2012


I am trying to transmit ac3 content via spdif on a mx6 (on a yet
non-mainlined driver).

Tried to force non-audio mode via iecset:

# iecset audio 0
control "IEC958 Playback Default" (index -1) not found

root at imx6qsabrelite:~# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: sgtl5000audio [sgtl5000-audio], device 0: HiFi sgtl5000-0 []
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: imxhdmisoc [imx-hdmi-soc], device 0: IMX HDMI TX mxc-hdmi-soc-0 []
   Subdevices: 1/1
   Subdevice #0: subdevice #0

Transmitting a wav file works fine though.

Any suggestions as to how provide the "IEC958 Playback Default" control?


Fabio Estevam

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