On Thursday 26 March 2009, Janne Grunau wrote:
> 
> While I generally agree that setting parent to the usb interface is
> probably correct for multifunction devices

Make that "all" devices.  :)


> I noticed a problem after 
> changing the hdpvr driver accordingly.
> 
> With parent set to the usb interface there is no longer easy access to
> the usb device properties like the serial number through sysfs. I know
> that a couple of user with more than one device use the serial number
> to set static device nodes through udev.

The serial number is still available, but it's coupled to the USB
device not its interface.  Make your udev script hop up a level or
two in the driver model tree, as appropriate.






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