Dear Alan
> I thought you said you were debugging the controller driver. Why do you
> care what the gadget driver does?
>
> To answer your question: If a gadget driver doesn't support USB 2.0 --
> including GET_DEVICE_QUALIFIER -- then it shouldn't set bcdUSB to 0x0200.
>
for example zero.c, it use bcdUSB 0x200 but if you do not set
GADGET_DUALSPEED. it will not include the device_qualifier, this will
mislead the host to ask for a descriptor which the device do not know
and result in a protocol stall.
-----------------------------------------------
Mike Lee
-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_ide95&alloc_id396&op=click
_______________________________________________
linux-usb-devel@lists.sourceforge.net
To unsubscribe, use the last form field at:
https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
