host: musb: hubs either fail to recognise, or assert

[karlp]

Operating System

Linux

Board

dk-tm4c129x (msp432e4 equivalent)

Firmware

examples/host/cdc_msc_hid

What happened ?

I'm not entirely sure from #1213 whether hubs are meant to be supported or not yet?

If I have the hub attached when the test app starts, it attempts to enumerate, but then asserts.
If I don't have the hub attached, let it boot, and then plug it in, it is simply not detected.

How to reproduce ?

build examples/host/cdc_msc_hid
attach a usb hub (no downstream devices required)
flash and run
observe assert

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

bugs.hub.host.log

Screenshots

No response

I have checked existing issues, dicussion and documentation

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

[karlp]

What platform should I choose as a reference "known good" host platform? From the supported boards table, it looks like either imxrt10xx or renesas? Any preference?