Hello all,
following this thread http://mailman.alsa-project.org/pipermail/alsa-devel/2016-May/108068.html I added a new sound card without codec. On my board the i.MX6Q chip puts audio data directly to some ST FDA2100 power amplifiers. The sound card is listed correctly in alsa but in alsamixer there are no audio controls, I need a volume control. I tried to edit asound.conf file with this part
pcm.softvol { type softvol slave { pcm "hw:1,0" } control { name "SoftVol" card 1 } }
ctl.softvol { type hw card 1 }
This is part of logs during the boot
--> ITEL imx_itel_probe --> ITEL Configuro audmux --> ITEL imx-audmux-confic ext-port port=0x00000001ptcr=0x9ce73800 pdcr=0x00006000 --> ITEL imx-audmux-config int-port port=0x00000001ptcr=0x00000800 pdcr=0x00002000 --> ITEL imx-probe registro card imx-itel sound-audio-itel: snd-soc-dummy-dai <-> 202c000.ssi mapping ok --> ITEL imx-probe of ssi --> ITEL imx-probe of codec [...] ALSA device list: #0: cs42888-audio #1: imx-audio-itel #2: imx-spdif #3: imx-hdmi-soc [...] ALSA: Restoring mixer settings... No state is present for card imxaudioitel Found hardware: "imx-audio-itel" "" "" "" "" Hardware is initialized using a generic method No state is present for card imxaudioitel No state is present for card imxspdif Found hardware: "imx-spdif" "" "" "" "" Hardware is initialized using a generic method No state is present for card imxspdif
Sorry but I'm new in alsa and linux in general. Riccardo