UAC example crashes after adding a HID/CDC interface

[arun-511]

Operating System

Others

Board

Raspberry Pi Pico

Firmware

examples/device/uac2_headset with HID class from examples/device/hid_multiple_interface

What happened ?

Adding a HID or CDC class with the UAC2 example causes it to panic on Android Host. On Windows, the same thing occurs after an uncertain number of play and pauses. Setting CFG_TUSB_DEBUG=2 makes it panic on plugging in. Log and gdb indicates assertion "hw_data_offset(next_buffer_ptr) <= USB_DPRAM_MAX" failed: file "...RP2040\lib\tinyusb\src\portable\raspberrypi\rp2040\dcd_rp2040.c", line 86, function: _hw_endpoint_alloc

How to reproduce ?

HID interface is added after the UAC Interface in desc_configuration
TUD_HID_DESC_LEN is added to CONFIG_TOTAL_LEN
ITF_NUM_HID is added in enum after ITF_NUM_HID
HID endpoint EPNUM_HID=0x84
All HID callbacks are added from examples/device/hid_multiple_interface with proper modifications.

Plugging the USB to an Android host cases it to panic immediately.

Debug Log as txt file

LOG: log.txt
GDB backtrace output: gdb-output.txt

Screenshots

No response

I have checked existing issues, dicussion and documentation

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