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SubjectRE: PATCH Backport /proc/pci from 2.4.x to 2.2.x
> From: Jeff Garzik []
> On Mon, 25 Sep 2000, Dan Hollis wrote:
> > On Mon, 25 Sep 2000, Jeff Garzik wrote:
> > > I see you suggestion in the same way... If we keep the
> PCI device name
> > > data around after boot, then we have a lot of kernel
> memory locked up
> > > on the off chance that a HotPlug PCI device might appear
> for which we
> > > need a name.
> > > I would much prefer a userspace solution for naming
> unnamed PCI devices
> > > after boot...
> > How about the kernel calling lspci?
> Kernel calling a proggie is no problem... CONFIG_KMOD does
> it, and Linus
> has suggest that hotplugging a device needs to fire off a script, like
> /sbin/hotplug-net eth0 # new eth0 just inserted
> If hotplugging executes an action, then updating the PCI device name
> should become part of that. That implies that the kernel won't do any
> of the executing... /sbin/hotplug-net will initiate the device name
> update, so the kernel needs a way to update the device name at the
> request of userspace. It could be something as simple as
> echo name > /proc/bus/pci/00/0a.0/name
> or something more complex...

2.4.0-testN kernel already calls /sbin/hotplug (for USB),
or whatever the string value in /proc/sys/kernel/hotplug is.

It takes several argv and envp parameters so that different
buses and interfaces can be supported.


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