Re: [Qemu-devel] USB Tablet Emulation

[Brad Campbell]

Brad Campbell wrote:
> Brad Campbell wrote:
>
> > The wheel works in SDL although there is currently a bug where it 
> > steps by 2 instead of 1.. so it's ok for scrolling, but scrolling 
> > through a selection box causes it to skip every second selection.
> > I've not tested the wheel with the vnc patch yet. I'll get to those 
> > tonight..
>
> Wheel works in VNC unmodified :) (yay)
>
> I've been playing some more on the Win98 calibration issue and I'll keep 
> looking at that, but for now it' still a no-go. And the 2 step wheel 
> thing still needs fixing.

Fixed the descriptor.. Now works perfectly in Win98, 2k and XP :)


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diff -ur qemu-clean/hw/usb-hid.c qemu/hw/usb-hid.c
--- qemu-clean/hw/usb-hid.c     2006-04-10 23:39:14.000000000 +0400
+++ qemu/hw/usb-hid.c   2006-04-10 23:41:39.000000000 +0400
@@ -161,7 +161,7 @@
         0x00,        /*  u8 country_code */
         0x01,        /*  u8 num_descriptors */
         0x22,        /*  u8 type; Report */
-        65, 0,       /*  u16 len */
+        70, 0,       /*  u16 len */
 
        /* one endpoint (status change endpoint) */
        0x07,       /*  u8  ep_bLength; */
@@ -203,10 +203,13 @@
         0x09, 0x30, /* Usage X */
         0x09, 0x31, /* Usage Y */
         0x15, 0x00, /* Logical Minimum 0 */
-        0x27, 0xFF, 0xFF, 0x00, 0x00, /* Logical Maximum 0xffff */
+        0x26, 0xFF, 0x7F, /* Logical Maximum 0x7fff */
+        0x35, 0x00, /* Physical Minimum 0 */
+        0x46, 0xFF, 0x7F, /* Physical Maximum 0x7fff */
         0x75, 0x10, /* Report Size 16 */
         0x95, 0x02, /* Report Count 2 */
         0x81, 0x02, /* Input (Data, Var, Abs) */
+        0x05, 0x01, /* Usage Page Generic Desktop */
         0x09, 0x38, /* Usage Wheel */
         0x15, 0x81, /* Logical Minimum -127 */
         0x25, 0x7F, /* Logical Maximum 127 */