[vfio-users] Using input-linux in qemu-git; mouse works, but keyboard doesn't

Jonathan Scruggs j.scruggs at gmail.com
Wed Apr 13 07:21:46 UTC 2016


It took me awhile to figure out what was going on when I got my new
keyboard. It turns out when you list all devices in by-id there were three
entries for the keyboard. The third one was the keyboard part and the other
ones were the macro keys.

Gerd, would it possible to use the device as listed by lsusb (the user pass
in the bus and port numbers so a small amount of detail) because it shows
only one for the keyboard. Also would it be possible to scan the keyboard
details and pass that information through to the VM so the VM thinks that
device is plugged into the USB port then we can use the software from the
manufacturer to make the macro keys and special features work. Then press
both control keys to switch the device back and forth between guest and

On 12 Apr 2016 10:04 am, "Gerd Hoffmann" <kraxel at redhat.com> wrote:

On Di, 2016-04-12 at 00:33 -0700, William Green wrote:
> Using latest git:
> /dev/input/event1
>    id   : 046d:200a, (null), v273
>    phys : "usb-0000:00:14.0-14:2"
>    name : "Logitech K350"
>    KEY  : [ 261 codes ]
>    REL  : HWHEEL
>    ABS  : VOLUME
>    MSC  : SCAN

Ah, that is more useful ;)

Guess we should check the relative axis is actually x or y before
classifying the device as mouse ...


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