On Mon, 2007-10-08 at 22:00 -0700, David Brownell wrote:
> > > > The old /etc/hotplug/usb.rc script made sure to load those modules
> > > > in the correct order: EHCI first.
> > >
> > > I expected to find something cute attempting to handle this under
> > > /etc/udev, I have failed so far :-)
> >
> > No, nothing cute in udev itself, but it seems that all distros that I
> > know of have a "load these modules now" type setting in their init
> > scripts that can be used here.
> >
> > I can't think of a way to enforce this load order on the modules
> > themselves due to the fact that OHCI might not even be needed for EHCI
> > devices on UHCI (Intel) based chipsets :(
>
> Assuming PCI is present, /sys/bus/pci/devices/*/class can tell
> if EHCI is present (0x0c0320) ... if so, load that driver.
> Then repeat for OHCI (0x0c0310) and UHCI (0x0c0300).
That will not work for all of the non-PCI implementations though.
Ben.
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