Hi,

If I run the alsa_aplay utililty from adb shell cmd line, getting the
below error:
aplay: main:590: audio open error: Device or resource busy

This is because of the Sound device is already being used by
AudioFlinger Library.

I tried to rename or delete the library libaudioflinger.so from system/
lib of Target board.
But it says: the operation is not allowed, as it is Read-only file.

Even killing of the process is also not permitted.

Q: Where the permissions of these file have been set?

I'm using Yaffs2 file-system.

Please help me how to run the alsa_aplay in Android without GUI.

Regards,
Srikanth

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