How to change USB Audio class in ncs

[longrain]

Hi,

I'm trying the USB Audio in ncs .

dts is like below:

&usbd {
	compatible = "nordic,nrf-usbd";
	status = "okay";

	hs_0 {
		label = "HEADSET";
		compatible = "usb-audio-hs";
		mic-feature-mute;
		mic-channel-l;
		mic-channel-r;

		hp-feature-mute;
		hp-channel-l;
		hp-channel-r;
	};
};

And prj.conf:

CONFIG_USB_DEVICE_AUDIO=y and other USB relevant  defines.

It works,and  the usb audio  data size from PC in 1ms is 192 bytes.

This is equal to 48K sample rate and 16bit.

And how to change the sample rate and other usb audio class params?

Thanks.

[longrain]

I have solved this。

I haveto modify the header file , and can not configure these in prj.conf .

[Andrej102]

I have the same problem. Please tell me in which file and what changes you have made.

[longrain]

Hi,

Take a look at this file:

zephyr\subsys\usb\class\audio\usb_audio_internal.h