Re: why device invoke bus reset when in mass-storageprogress?

[Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>]

On Tue, 20 Jun 2006, JackRain wrote:

> Alan Stern,ÄúºÃ£¡
> 
> 	thanks for your answer!
> 
> 	both full-speed and high-speed mode fail when processing SCSI
> command 0x23 (which is not support by driver)

g_file_storage does support command 0x23.

> 
> 	when driver receives an unsupport command ,it tell isp1582 to
> stall the endpoint pipe.
> 
>     and application,which emulate the UFI protocol wait for a while ,
> 
>     then bus reset was captured by driver ,and re-start again~ .
> 
>     why the driver doesn't ___move___ after stall the pipe??

Lots of UDC drivers and hardware aren't able to stall bulk pipes 
correctly.  You can work around the problem by using the module parameter 
"stall=n" when you load g_file_storage.

Alan Stern



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