On Sunday 20 March 2005 09:46 am, Marius Nünnerich wrote:
> Hi,
>
> I recently purchased a cheap USB mouse/keyboard combination. If I
> plug it in /dev/ums0 is created, I also can run moused -p
> /dev/ums0, but the mouse will not move.
>
> I upgraded to a recent -STABLE, so ums.c is version 1.70.2.2.
> I compiled a kernel with options USB_DEBUG and set
> hw.usb.ums.debug=9999.
> With cat /dev/ums0 > /dev/null I can see the Debug Info on the
> console: ums_intr: sc=0x19d5c00 status=13
> ums_intr: data = 01 00 00 00 00 01
> ums_intr: status=13
>
> It seems that this mouse sends 1 extra byte before the usual data,
> just like the MS Wireless Intellimouse 2.0, because data is like:
> 01 BUTTON X Y Z 01
>
> But seems like ums_intr() returns on line 467, so I tried this:
> --- /sys/dev/usb/ums.c Sun Mar 20 14:54:14 2005
> +++ /root/ums.c Sun Mar 20 14:54:04 2005
> @@ -456,7 +456,7 @@
> * Currently it's the only user of UMS_T so use it as an
> identifier. * We probably should switch to some more official
> quirk. */
> - if (sc->flags & UMS_T) {
> +/* if (sc->flags & UMS_T) {
> if (sc->sc_iid) {
> if (*ibuf++ == 0x02)
> return;
> @@ -468,9 +468,11 @@
> }
> }
>
> +*/ *ibuf++;
>
>
>
> It sort of works. If I run moused -p /dev/ums0 I can actually use
> that mouse, BUT it moves jerky, I have to move the wheel two
> positions to get one and when a button is pressed when the mouse
> stands still it is not recognized. The mouse _must_ move for the
> button to get noticed.
>
> Has anyone an idea what to try next?
> Any help would be greatly appreciated!
>
Is the code setting the UMS_T flags? If not, then force it in after
the detection routine section:
/* The Microsoft Wireless Intellimouse 2.0 reports it's wheel
* using 0x0048 (i've called it HUG_TWHEEL) and seems to expect
* you to know that the byte after the wheel is the tilt axis.
* There are no other HID axis descriptors other than X,Y and
* TWHEEL */
if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP,
HUG_TWHEEL),
hid_input, &sc->sc_loc_t, &flags)) {
sc->sc_loc_t.pos = sc->sc_loc_t.pos + 8;
sc->flags |= UMS_T;
}
sc->flags |= UMS_T; /* <--- Add this to force MS Intellimouse Mode */
If that make is work we'll have to figure out a way to auto detect
this since it uses the same byte order, but doesn't have the tilt
wheel to facilitate detection.-- Anish Mistry
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