On 01/11/2012 05:22 PM, Alan Stern wrote:
On Wed, 11 Jan 2012, Sebastian Andrzej Siewior wrote:
So you would prefer to handle this in kernel instead of in userland via
usb_modeswitch?
Is there any reason not to?
Well no. Even if you override it in kernel the user still could switch
it if he wants to.
BTW, do you know how usb-modeswitch handles these devices? The only
approach I can think of would be to unbind the interface from
usb-storage (via sysfs) and bind it to uas. Is usb-modeswitch smart
enough to switch back to usb-storage if uas fails to bind?
Right now it is really dump but it is the first tool that came to mind.
It is trigged via udev, it has vid/pid database it feels responsible.
Once it finds a device it knows (according to another database) what to
do to switch from one device to another. It does usually more than just
a set interface call. It used by a lot of usb sticks which appear to be
a cd-rom device and after a magic command the 3G modem appears :)
So right it won't notice that the driver can't bind, maybe it is not
the right tool for this approach.
Felipe, what is Nokia and the other people that have the multi-
functional gadgets use to switch from one function to the other?
Alan Stern
Sebastian
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