[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen PV audio XenStore
On Tue, Jul 05, 2011 at 01:02:08PM +0100, Ian Campbell wrote: > On Mon, 2011-07-04 at 23:16 +0100, George Boutsioukis wrote: > > Hello everyone, as some of you may remember there is a GSoC project > > this year to implement a paravirtualized audio driver and I am the > > student undertaking this effort. > > > > As the rest of the PV audio drivers, my frontend uses XenStore to pass > > the event channel & grant reference to the backend, along with a few > > configuration data. Although the driver is far from usable, the > > XenStore layout is not going to change much in the future, so I think > > it would be useful to describe it to the community. > > > > First of all, although the frontend is implemented in userspace, I > > tried to follow the scheme used by the rest of the PV drivers. This > > looks something like: > > > > /local/domain/<domID>/device/audio/<devID>/event-channel > > /local/domain/<domID>/device/audio/<devID>/ring-ref > > /local/domain/<domID>/device/audio/<devID>/format > > /local/domain/<domID>/device/audio/<devID>/rate > > /local/domain/<domID>/device/audio/<devID>/channels And "format" is...? string? What does it look like? > > > > where devID is a unique device ID for the guest system. Could you provide an example of what this layout looks like for stereo microphone (each channel is 8bit-unsigned, 44Khz) and 5.1 channel output with 48Khz of ulaw-16bit signed? _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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