On Feb 20 2004, at 18:47, Benjamin Herrenschmidt was caught saying: > > > If you mean the USB target device itself, can't you walk the > > tree until you find a device that is no longer on bus_type > > usb to determine your root? > > I don't feel like walking the tree on each pci_dma access
I never said it would be pretty. :) > > > You could stuff that into platform_data on PCI devices on your platforms. > > I want automatic inheritance to child devices, shouldb't be _that_ > difficult to do ;) Hmm, I wonder if the easiet way to do this at the moment would be to add a platform specific hook that gets called during device_add(). On arches that don't need to do this, it would just be a nop, but on PPC64 and others it could do whatever is required. By the time that device_add() is called, it is already attached to a bus, so this function could walk the tree to inherit parameters at discovery time instead of the above suggestion. Seems doable without impacting other arches. ~Deepak -- Deepak Saxena - dsaxena at plexity dot net - http://www.plexity.net/ ------------------------------------------------------- SF.Net is sponsored by: Speed Start Your Linux Apps Now. Build and deploy apps & Web services for Linux with a free DVD software kit from IBM. Click Now! http://ads.osdn.com/?ad_id=1356&alloc_id=3438&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
