The uac2_headset example is broken on RP2040 processors

[pschatzmann]

Operating System

Linux

Board

RP2040

Firmware

standard uac2_headset example with standard firmware as documented in this project

What happened ?

The processor is hanging after connecting to the device from Audacity under Linux

After implementing this pull request, it's working w/o problems.
How can I help that this correction is moving agead ?
I finally want to have it working in the Adafuit TinyUSB....

How to reproduce ?

• Compile and deploy headset example to a RP2040
• select TinyUSB as input device
• start Audacity
• click recording
• click change sample rate or select TinyUSB as output device

Debug Log as txt file (LOG/CFG_TUSB_DEBUG=2)

I could not get the logging to work

Screenshots

n/a

I have checked existing issues, dicussion and documentation

• I confirm I have checked existing issues, dicussion and documentation.

[FearLabsAudio]

This is still broken despite merges ISO API changes #2847

Pi Pico Device, Pico-SDK 2.1.0, Results are the same on multiple windows hosts as well as linux hosts

Output (CFG_TUSB_DEBUG=1) is as follows:

Headset running
Get channel 0 volume range (-50, 0, 1) dB
Get channel 1 volume range (-50, 0, 1) dB
Get channel 2 volume range (-50, 0, 1) dB
Clock get 2 freq ranges
Range 0 (44100, 44100, 0)
Range 1 (48000, 48000, 0)
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Get channel 1 mute 0
Get channel 1 volume 0 dB
Get channel 1 mute 0
Clock set current freq: 48000
WARN: starting new transfer on already active ep 01

*** PANIC ***

ep 01 was already available