Disable USB Audio Routing Programmaticaly

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PW

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Dec 18, 2017, 3:48:42 PM12/18/17

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Hi, I'm wondering if there is a way to disable USB AUDIO ROUTING on nougat. I did it in lower api via reflection and setwireddeviceconnectionstate. This however doesn't seem to want to work on nougat and i'm not sure if the reflection has changed at all.

I want exclusive access on USB output and do not want system notifications to go via USB as they interrupt the signal.

Thanks

Glenn Kasten

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Dec 29, 2017, 1:04:41 PM12/29/17

to android-porting

At one time there was a setting for this, and there may still be but I seem to recall it has suffered from bit rot and does not work as well as it used to.

Search source code in frameworks/base and packages/apps/Settings for all references to the symbol

USB_AUDIO_AUTOMATIC_ROUTING_DISABLED and then follow the bread crumbs from there.