rp2040 host won't work with 'tracer CH4' hub

[Jajcus]

Operating System

Linux

Board

Raspberry Pi Pico

Firmware

examples/host/cdc_msc_hid

What happened ?

When hub is connected device seems stuck in a loop instead of detecting the hub connected. When disconnecting the hub it panics with 'Invalid speed'. The same hub works correctly with Linux PC, a different hub works with the same Pico.

How to reproduce ?

1. compile the example with: make BOARD=raspberry_pi_pico all LOG=2
2. flash it to the Rasbperry Pi Pico
3. connect the tracer CH4 hub/card reader via a OTG atapter to the Pico (it won't work)
4. disconnect it (the pico will PANIC)

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

debug.txt

Screenshots

No response

I have checked existing issues, dicussion and documentation

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

[hathach]

won't fix since I don't have device in question. PR is welcome

[Jajcus]

I would need at least some guide how to debug this and what could be the problem. I hoped someone can see what is wrong by looking at the logs – they are completely incomprehensible to me right now.