Messages in this thread | | | Subject | Re: [linux-usb-devel] Re: [BK PATCH] USB update for 2.6.3 | From | Benjamin Herrenschmidt <> | Date | Fri, 20 Feb 2004 19:48:13 +1100 |
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> Well, usb_device->bus->controller is the only access that > should be needed ... much prettier than a tree walk! It's > set up as part of device enumeration. > > Some of the usb_buffer_*() mapping calls could probably > start to get inlined now, using the generic DMA calls.
It all depends what the USB device driver does. If it does pass the struct device of it's controller, it's fine. If we want it to be able to pass its own struct device, we need this walk... it's a matter of how we want this API to behave.
Same goes for firewire, and possibly others
Anyway, a platform hook in device_add() seem like it could be useful for other things as well...
Ben.
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