Alan Stern <st...@rowland.harvard.edu> writes:
> On Tue, 31 Jul 2012, Bjørn Mork wrote:
>
>> IMHO that should have been the default for any composite device, but
>> whatever..  I don't think it's very nice of usb-storage to reset the
>> device if there are drivers bound to other functions.
>
> That's why we have pre_reset and post_reset callbacks.  The alternative 
> is to lose access to all the mounted filesystems on the mass-storage 
> device, which isn't very nice either.

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


Bjørn
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