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SubjectRe: 2.2.18pre16 and USB_UHCI_ALT
On Mon, Oct 16, 2000 at 01:32:01PM -0400, Johannes Erdfelt wrote:
> On Mon, Oct 16, 2000, David Rees <dbr@spoke.nols.com> wrote:
> > In 2.2.18pre16 an alternative USB_UHCI driver under the option
> > CONFIG_USB_UHCI_ALT was added. Only this one works for me, and
> > CONFIG_USB_UHCI throws up 50 messages a second like this one:
> >
> > Oct 16 00:12:22 spoke kernel: usb-uhci.c: interrupt, status 3, frame# 188
> >
> > and leaves my mouse in an unusable state.
> >
> > This is on a VIA Technologies VT 82C586 Apollo USB (rev 6). I have two
> > USB devices connected to it:
> > Microsoft Microsoft IntelliMouse® Optical
> > Microsoft Natural Keyboard Pro
> >
> > What is supposed to be the difference between the two drivers, anyway? It
> > is not clear from the docs what is different besides the fact that they
> > are different.
>
> Just that. It's an alternative implementation. It's a long story why
> there's 2 drivers for the same device, and you can check the USB
> archives to learn the whole story.
>
> The short of it is that I didn't like the usb-uhci.c driver so I wrote a
> different one. It looks like it was worth the effort since it works for
> you whereas usb-uhci.c doesn't.
>
> I'm sure the usb-uhci.c guys will be interested to follow up with you
> about the problems you are seeing.

Well, the real interesting part is that I was using the usb-uhci.c driver
in 2.2.18pre15, and now in 2.2.18pre16 it stopped working for my mouse
with no apparent change to either of the uhci drivers.

-Dave
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