topic [IMX53 QSB ] Set default sound card for Android in i.MX Processors

[IMX53 QSB ] Set default sound card for Android

phuongdangminh — Wed, 14 Nov 2012 16:20:12 GMT

Hello,

I'm using IMX53 QSB with Andeneo Android 2.3 and need to play video via HDMI cable but no sound out put

but only SGTL5000. How to set default with card1 (imx3stackspdif) instead card0 (SGTL5000) ?

# /system/bin/alsa_aplay -D hw:1,0 -f dat /mnt/sdcard/download/equinox-48KHz.wav

Play a wav file by using the alsa_player and it can ouput via HMDI that mean the driver works properly

Thank you.

Re: [IMX53 QSB ] Set default sound card for Android

daiane_angolini — Wed, 28 Nov 2012 18:38:19 GMT

Sorry for my delay. I may had missed your comment on my document.

I´m still working on how to configure spdif/hdmi default output for android rootfs, so I don´t have a detailed how-to.

As soon as I have any update I let you know

Re: [IMX53 QSB ] Set default sound card for Android

phuongdangminh — Wed, 12 Dec 2012 11:21:05 GMT

Hello,

Thank you very much. I'm waiting for you.

Regards,

Re: [IMX53 QSB ] Set default sound card for Android

daiane_angolini — Thu, 13 Dec 2012 15:20:21 GMT

Have you tried anything?

I´ve been studying this, and looks like Android would be able to swicth to HDMI audo automaticaly.

I was not able to get a HDMI monitor so far, so I had not tried it yet.

Could you, please, share your tests?

Re: [IMX53 QSB ] Set default sound card for Android

phuongdangminh — Fri, 21 Dec 2012 00:36:51 GMT

Thanks for your respond,

Maybe there are some limit in the Android source code of Adeneo. I tried it but no result, only audio output via the headphone Jack.

Android doesn't like linux, I don't known where to setting HDMI audio output options or modify the source code.

Regards,

Re: [IMX53 QSB ] Set default sound card for Android

daiane_angolini — Tue, 25 Dec 2012 20:26:17 GMT

well, if you want to modify source code, you will change something on alsa, but I took a look in the source, and it looks like it is smart enough to understand when you swap the output.

Maybe, some set.prop on Android layer to determinates the output....