uac2_headset descriptors seem wrong

[abainbridge]

I've probably misunderstood something but here goes...

The uac2_headset example seems to mix-up which interface/endpoint is which. Eg the interface configured as a speaker has string index 5:

tinyusb/examples/device/uac2_headset/src/usb_descriptors.h

Line 111 in f674561

TUD_AUDIO_DESC_STD_AS_INT(/*_itfnum*/ (uint8_t)(ITF_NUM_AUDIO_STREAMING_SPK), /*_altset*/ 0x00, /*_nEPs*/ 0x00, /*_stridx*/ 0x05),\

And string index 5 is defined as microphone:

tinyusb/examples/device/uac2_headset/src/usb_descriptors.c

Line 151 in f674561

"TinyUSB Microphone", // 5: Audio Interface

[HiFiPhile]

You are right, _stridx of speaker and mic are reversed. You can make a PR for it.