Support for more than 2 I2S audio channels with the Cirrus Logic CS42448 codec in "One line mode"

[doumdi]

Hello I2S/Audio and Codec Experts,

Do you think it would be possible to connect a multi channel audio codec (like the Cirrus Logic CS42448) to the I2S port of the Raspberry Pi? There is a "one line mode" on the CS42448 codec that would be useful for this kind of configuration by sending multiple channels over the same I2S lines at higher clock rates. However, I am not sure we could modify the kernel driver to support this kind of configuration. I don't know if the soc can handle that also. The intended application is audio beamforming with multiple microphones.

Any thoughts or suggestions are welcomed.

Thank you!

[Ruffio]

@doumdi has your issue been resolved? If so, please close this issue. Thanks.

[flatmax]

It is now possible, see here

[doumdi]

Thanks Matt, It seems it was a good idea after all! Good luck with your kickstarter campaign. You managed to get the I2S code into the kernel ? It seems they reverted it to 2 channels max. Regards, Dominic

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Le 13 janv. 2017 à 01:10, Matt Flax ***@***.***> a écrit : It is now possible, see here <http://audioinjector.net/> — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#1311 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAradhrniv_yPx2jm6Fp9Lf6pi6KKklAks5rRxVMgaJpZM4HlmJo>.

[Ruffio]

@doumdi has this been resolved? I think perhaps your should use the forum to ask questions as Github is only for solving bugs...

[JamesH65]

Closing this issue as questions answered/resolved.