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USB Audio Class device on Android - Stack Overflow
https://stackoverflow.com/questions/10222489/usb-audio-class-device-on-android
My understanding is that the Android kernel will not support Audio through USB (without rooting the phone). However, based on this post, it looks like I can write a soft driver for an arbitrary USB device if I can grab it by its VID and PID. Perhaps I can even play some audio from my application using the isochronous endpoint.. Is this possible?
How to enable USB "Audio Source" option on Android 9 ...
https://android.stackexchange.com/questions/225334/how-to-enable-usb-audio-source-option-on-android-9
However Android devices support audio peripherals in host mode (kernel must be built with CONFIG_SND_USB_AUDIO). Since AOA is specific to Android, such accessories aren't usable with other hosts like PCs. So there was a demand from audio peripheral manufacturers, device OEMs and ROM developers community to support standard USB audio out capability in host mode …
USB audio driver - extreamsd.com
https://www.extreamsd.com/index.php/technology/usb-audio-driver
drivers/usb/gadget/function/f_audio_source.c - kernel/msm ...
https://android.googlesource.com/kernel/msm/+/android-7.1.0_r0.2/drivers/usb/gadget/function/f_audio_source.c
Sign in. android / kernel / msm / android-7.1.0_r0.2 / . / drivers / usb / gadget / function / f_audio_source.c. blob: 1295efbade9850e236e561315833d67d4d66da92 [] [] []
[Kernel]- Usb Audio support - Initial idea | Page 2 | XDA ...
https://forum.xda-developers.com/t/kernel-usb-audio-support-initial-idea.1700924/page-2
Hi Devs. After doing a little research, its seems that USB audio support is enabled in the S3 kernel. There seems to be a fair bit of support for implenting this feature accross a range of devices. I also note that the cheap C-media chips are recognised by the S3 kernel. So I'm going to buy one, as they are cheap as chips.
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