Sabre ES 9023 support via I2S (ALSA) on 3.4.107+ ?

[XFer]

Hello,

now that I'm up&running again with the latest Olimex Debian image and the 3.4.107+ kernel (stock from linux-sunxi, except from a small tweak to reduce audio latency), I'd like to improve the audio quality of my Olinuxino A20 MICRO.

I have a decent DAC daughterboard: ES 9023 "Sabre". It has a I2S interface.

Does anyone know if it's supported "straight off the box" by the ALSA driver with 3.4.107 (if it's unsupported, do you have any suggestion for a supported DAC, even USB)?

Thanks

Fernando

[igorpec]

I2S is supported within my (patched) kernel and it's been proven to work on Banana PRO and Cubietruck ...

If Olimex Micro has I2S pins you can connect such sound card.

[XFer]

Did you patch 34.107+ from linux-sunxi to get I2S to work? Which patch did you apply?
Thanks!

Fernando

[igorpec]

No, I am using different / alternative repository which contains more 3rd part patches than linux-sunxi.

Already patched for I2S and many more ...
https://github.com/dan-and/linux-sunxi

The patch I used is here:
https://github.com/igorpecovnik/Cubietruck-Debian/blob/master/patch/0001-I2S-module-rework.patch

... should work on linux-sunxi too.

[robert.w]

Hello
I am using  3.4.107 from Igor (olinuxino micro) with CS4344 analog to digital audio converter and it working but using 44100 and 48000 sample rate.

[XFer]

Thanks a lot guys.
44100 and 48000 Hz are all I need; will report if the 9023 works (it should).

The A20 Micro has more than decent integrated audio (vastly better than RPi), but suffers from interferences when accessing the uSD card.

Fernando