[Question] dummy_hcd and FS devices

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Hi Sarah, Alan,

I was trying to enumerate a FS device using dummy_hcd but unfortunately it
didn't work. The enumeration failed because "parent hub has no TT". I
searched the code and saw that the hub->tt.hub is set if bDeviceProtocol=1,
when according to usb2_rh_dev_descriptor (defined in hcd.c)
bDeviceProtocol=0, meaning, no TT.

So I have 2 questions:
1. Was dummy_hcd ever tested with FS devices?
2. How this is working for a real HS root hub? I'm sorry for asking this,
but I didn't find it in the code and we don't have any convenient tools for
host debugging so it's not so trivial. 

Thanks,
Tanya Brokhman
---
Sent by an consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.

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