On Wed, 27 Oct 2004, Geoff Oakham wrote:

> if I claim the interface with usb_driver_claim_interface, will usbfs
> respect it?  There are only a handful of userspace drivers for this
> device out there.. and I'm pretty sure they're not active during the
> test.

Like Oliver said, you don't need a driver to access a USB device.  Simply 
doing "cat /proc/bus/usb/devices" will cause several GET-DESCRIPTOR 
requests to be sent to the device's endpoint 0.

> I'll certainly unmount usbfs.. that will be one less possibility.
> Would X and/or multi-user mode make that much of a difference?  X
> certainly makes it easy to keep system resources busy. (Not that that's
> news or anything :)

Without usbfs (and maybe without sysfs too) then it shouldn't matter too 
much what other programs are running.

Alan Stern



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