Re: [PATCH 2/3] usb: Take attribute avoid_reset_quirk out of usb device's attribute group

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On Tue, 31 Jul 2012, Oliver Neukum wrote:

> > Well, you are then saying that usb-storage has priority over any other
> > function and that is often wrong IMHO.  There are many newer composite
> > devices where the usb-storage function is thrown in as a bonus most
> > users never will touch, where the main function can be modem or printer
> > or whatever.  Letting the usb-storage driver reset these devices is bad.
> > 
> > Ref for example http://comments.gmane.org/gmane.linux.usb.general/60055
> 
> User space can set the quirk. It wasn't intended for this, but it does the
> job. Furthermore on such devices, storage could be a bot more cooperative
> and try the class specific reset first.

The class-specific reset almost never works.  Windows doesn't use it, 
so manufacturers don't implement it correctly.

Alan Stern

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