Messages in this thread |  | | | Date | Wed, 08 May 2002 10:07:46 +0200 | | From | Martin Dalecki <> | | Subject | Re: [PATCH] 2.5.14 IDE 56 |
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Uz.ytkownik benh@kernel.crashing.org napisa?: >> /driverfs/root/pci0/00:1f.4/usb_bus/000/ >> >>and it wouldn't be impossible (or even necessarily very hard) to make an >>IDE controller export the "IDE device tree" the same way a USB controller >>now exports the "USB device tree". >> >>For things like hotplug etc, I think driverfs is eventually the only way >>to go, simply because it gives you the full (and unambiguous) path to >>_any_ device, and is completely bus-agnostic. >> >>But there is definitely a potential backwards-compatibility-issue. > > > One interesting thing here would be to have some optional link between > the bus-oriented device tree and the function-oriented tree (ie. devfs > or simply /dev). For example, an IDE node in driverfs could eventually > hold symlinks to the entries it provides in /dev when using devfs (or > just provide major/minor when not using devfs). > > What do you think ? > > One problem I've been faced with on ppc is to be able to match > a linux device with what the firmware (Open Firmware) thinks that > device is. The firmware view is bus-centered and it would be pretty > easy to provide some additional entries in driverfs that give the > OF fullpath of a given device. But then, the link between the actual > driver in driverfs and the "device" as used by, for example, the > filesystem isn't trivial. > > Ben. > > >
This is the "first" IDE controller on my notebook:
./devices/root/pci0/00:07.1/01f0 ./devices/root/pci0/00:07.1/01f0/0 ./devices/root/pci0/00:07.1/01f0/0/power ./devices/root/pci0/00:07.1/01f0/0/name ./devices/root/pci0/00:07.1/01f0/0/status ./devices/root/pci0/00:07.1/01f0/power ./devices/root/pci0/00:07.1/01f0/name ./devices/root/pci0/00:07.1/01f0/status
Guys I have done it already!
For your convenience I will attach the ata prefix to the currently used port number in the next patch round.
OK?
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