On Wed, 2009-03-11 at 23:20 +0000, Steve Calfee wrote: > I have a different situation, but a classic issue is if a user wants to > have ub handle one device and usb-storage handle others. How can this be > done? udev loads the driver, but the driver itself grabs the devices. The > first module loaded will hog all the devices. USBIP will also sooner or > later hit this problem, some devices might need to be local and some placed > remotely. Presumably separate drivers will be needed. > That's simple. ub includes an alias for the specific device (ie. by vendor/device id as well as class). usb-storage includes the generic classful alias. ub appears before usb-storage in the kernel link order, and thus appears first in /lib/modules/$(uname -r)/modules.order So the kernel will try that module first if it's a built-in, and modprobe will try load module first if not. If you want to do more complicated runtime decisions, you can use the bind/unbind interface. Scott -- Scott James Remnant scott@xxxxxxxxxxxxx
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