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* USB Enumeration
@ 2017-10-05 12:04 Udit Kumar
  2017-10-05 12:45 ` Zeng, Star
  0 siblings, 1 reply; 4+ messages in thread
From: Udit Kumar @ 2017-10-05 12:04 UTC (permalink / raw)
  To: edk2-devel-01

Dear Edk2 Expert, 

With edk2 shell, I am doing simple copy with USB, 
Flow is below 

Start- USB device is enumerated and given address 1.
1. On Shell , cp a b
2- After a while Host controller reports an error 
3- Layer above Host controller, reset the USB port
4-  and Slot is enabled again ( this time address 2 was given)
5- Now FatIFileAccess calls FatCleanupVolume, which in turn calls XhcBulkTransfer
And assert is reported at
MdeModulePkg/Bus/Pci/XhciDxe/XhciSched.c(1800): TrsRing != ((void *) 0)

Is this expected behavior to assert, or reporting an error will be fine in such cases. 

Thanks for help 

Regards
Udit
 


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2017-10-06  5:01 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2017-10-05 12:04 USB Enumeration Udit Kumar
2017-10-05 12:45 ` Zeng, Star
2017-10-05 13:25   ` Udit Kumar
2017-10-06  5:05     ` Udit Kumar

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