/dev/snd/pcmC0D0p failed: Device or resource busy in Android 9 Automotive HFP

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/dev/snd/pcmC0D0p failed: Device or resource busy in Android 9 Automotive HFP

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vinothkumars
Senior Contributor IV

Dear NXP,

 

Board: IMX8QM-MEB

OS: Android 9 Automotive

 

When in BT Call I got the following error continuously,

       can not open /dev/snd/pcmC0D0p failed: Device or resource busy.

 

My question is which card is used for HFP in IMX8QM-MEK Android 9 Automotive ?

XTOR, CS422888, WM8960.

 

Please provide the HFP stream follow for Android 9 Automotive ?

 

Thanks & Regards,

Regards,
Vinothkumar Sekar
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3 Replies

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vinothkumars
Senior Contributor IV

Hi, My question is which card is used for HFP in IMX8QM-MEK Android 9 Automotive ?

XTOR, CS422888, WM8960.

Regards,
Vinothkumar Sekar
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2,221 Views
AldoG
NXP TechSupport
NXP TechSupport

Hello,

BT HFP should use dummy machine driver imx-xtor.c this will route audio to the real audio codec which for i.MX8QM MEK should be WM8960.

Regards,
Aldo.

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2,216 Views
vinothkumars
Senior Contributor IV

Thank you for the reply nxf46838

 

audio_hw_primary: cannot open pcm_out driver 0: cannot open device '/dev/snd/pcmC0D0p': Device or resource busy

 

Will you please tell me how to resolve this issue.

 

Regards,

Regards,
Vinothkumar Sekar
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