ALSA Volume Control for imx-spdif

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ALSA Volume Control for imx-spdif

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carotte
Contributor III

Hi,

I'm using S/PDIF on imx6ull.

ALSA doesn't show any controls for this device. 

Can anyone give advise on how to control volume on imx-spdif ?

 

Thanks!

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5 Replies

136 Views
carotte
Contributor III

Hi Igor,

could you please elaborate further ?
amixer doesn't show any controls for this device, neither does alsamixer.

 

 

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119 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Noel

 

I asked internally and got below advice:

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Please let customer to try "alsamixer" command to check if there is one sound card named "imx-spdif"

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Best regards
igor

117 Views
carotte
Contributor III

Hi Igor,

Thanks for your reply!

That is indeed what I did, but there are no controls available for this device.

Please find the screenshot attached.

 

 

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104 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Noel

 

from team:

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Actually, in our release,  we didn't enabled spdif as default on imx6ull.

Could you help to double confirm if customer enable SPDIF correctly and the initialization is successful?

Please upload their patch and SCH if possible

------------

 

You can provide (if necessary) these materials usung service request. 

https://community.nxp.com/t5/HomeTest-Knowledge-Base/How-to-submit-a-new-question-for-NXP-Support/ta...

 

Best regards
igor

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140 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Noel

 

one can try amixer described in sect.7.5 Audio Mixer (AUDMIX)    i.MX Linux Reference Manual​

https://source.codeaurora.org/external/imx/imx-test/tree/test/mxc_amix_test?h=lf-5.10.y_2.0.0

imx-spdif driver is described in sect.7.4 The Sony/Philips Digital Interface (S/PDIF)

 

Best regards
igor

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