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Re: [Qemu-devel] [PATCH qemu 5/6] virtio-input: control device
From: |
Gerd Hoffmann |
Subject: |
Re: [Qemu-devel] [PATCH qemu 5/6] virtio-input: control device |
Date: |
Mon, 14 Apr 2014 10:51:57 +0200 |
Hi,
> > What I was thinking about is sending feedback about volume changes to
> > the guest is something completely different, let me explain in detail:
> >
> > What we have in spice today is that the guests volume change request is
> > passed to the spice client, which in turn forwards it to pulseaudio,
> > which then actually applies the volume setting to the audio stream. And
> > you can see the guests volume changes in the hosts mixer UI (sound
> > settings -> applications): change the volume in the guest and watch the
> > slider move.
> >
> > Today this is a one-way ticket. If you fiddle with the volume in the
> > hosts mixer ui the guest doesn't notice. A emulated volume wheel would
> > be a possible way to feedback volume changes on the host to the guest.
> > Note that it isn't that simple to implement as it need a spice protocol
> > extension too (and support in spice server + client of course).
> Or forward volume keys to guest through the virtio keyboard - then we
> don't need to emulate a volume wheel.
Isn't going to fly. Using volume up/down keys we can't says "volume is
at 42% now" to the guest.
cheers,
Gerd
[Qemu-devel] [PATCH qemu 6/6] virtio-input: evdev passthrough, Gerd Hoffmann, 2014/04/10
[Qemu-devel] [PATCH qemu 4/6] virtio-input: emulated devices, Gerd Hoffmann, 2014/04/10