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xen-devel
[Xen-devel] Re: ioemu-remote: USB Mouse/Tablet Doesn't Work
Yosuke Iwamatsu writes ("ioemu-remote: USB Mouse/Tablet Doesn't Work"):
> It seems the usb mouse and tablet are not enabled at all with
> ioemu-remote.
Thanks for the report.
> I looked into this problem a bit and found that the logic
> in hw/usb-hid.c, which was quite different from that of upstream qemu
> or of xen-unstable, was not working for some reason.
There were two reasons:
* My last pull from upstream predated a fix to the USB HID
descriptors. The effect of not having that change is that the
USB tablet (and mouse, probably) don't work at all. I've
cherry picked it.
* I'd replaced the code from xen-unstable c/s 17003 with a different
arrangement[1], but this was early in my merge with upstream qemu
so at that point I wasn't able to test it. I forgot to test it
later. Having done so it was rather buggy which I have now fixed.
I've done some more thorough testing following my fixes.
The results are in the current qemu-xen-unstable tip, which is
cbb3236f488db26179f1d72aea2c6323233055c3
This is available now at
http://www.chiark.greenend.org.uk/~ijackson/qemu-xen.git
and will make it to the usual locations on xenbits in due course.
[1] I think c/s 17003 can sometimes make button up and down events
happen at the wrong place. I haven't been able to reproduce
this under controlled conditions but in any case my new code
works now.
Ian.
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