Re: gadgetfs USB2.0 Chapter 9 Tests: Test after "Addressed State" fails

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Hi,

(avoid top-posting and break your lines at 80-chars)

On Mon, Dec 23, 2013 at 08:29:01AM +0000, roshan.jhalani@xxxxxxxxxxxx wrote:
> Hi,
> 
> I spent some time on this issue. And it looks like the only possible
> solution to avoid USB disconnect from gadgetFs driver.
> In my trial, I avoided ep0_release/ep_release in every disconnect with
> function state update. With this CV passes without functionality
> impact.
> 
> I don't know what was the intention to keep functionfs_unbind and bind
> in every disconnect. But avoid this makes situation stable.
> 
> Does anyone know why functionfs_unbind/bind is required in every
> disconnect??

Michal ?

> 
> Regrads,
> Roshan
> 
> -----Original Message-----
> From: Felipe Balbi [mailto:balbi@xxxxxx] 
> Sent: Saturday, December 14, 2013 1:27 AM
> To: Jhalani Roshan (EXT-MM/Bangalore)
> Cc: mzamponi@xxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx
> Subject: Re: gadgetfs USB2.0 Chapter 9 Tests: Test after "Addressed State" fails
> 
> hi,
> 
> On Fri, Dec 13, 2013 at 01:36:03PM +0000, roshan.jhalani@xxxxxxxxxxxx wrote:
> > Hi Macro,
> > 
> > We have observed same issue and reason for this issue is reset_config 
> > which triggers complete USB disconnect from F_FS.  For
> > SET_CONFIG(Config#0) there is no need to do USB Disconnect.  This 
> > seems to be bottleneck issue for USB compliance.  I believe this issue 
> > should be addressed by GadgetFS driver.
> 
> patches are welcome :-)
> 
> --
> balbi

-- 
balbi

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