Re: [PATCH] virtio-sound: add latency_bytes definition

[Matias Ezequiel Vara Larsen <mvaralar@redhat.com>]

Ping Anton.

Thanks, Matias.

On Thu, Oct 5, 2023 at 11:41âAM Matias Ezequiel Vara Larsen
<mvaralar@redhat.com> wrote:
>
> This commit aims at providing a better definition of latency_bytes. To
> do so, this commit defines latency_bytes as is defined in Crosvm.
>
> Signed-off-by: Matias Ezequiel Vara Larsen <mvaralar@redhat.com>
> ---
>  device-types/sound/description.tex | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/device-types/sound/description.tex b/device-types/sound/description.tex
> index 54c9c8e..1349765 100644
> --- a/device-types/sound/description.tex
> +++ b/device-types/sound/description.tex
> @@ -694,7 +694,10 @@ \subsubsection{PCM I/O Messages}\label{sec:Device Types / Sound Device / Device
>  \begin{description}
>  \item[\field{status}] contains VIRTIO_SND_S_OK if an operation is successful,
>  and VIRTIO_SND_S_IO_ERR otherwise.
> -\item[\field{latency_bytes}] indicates the current device latency.
> +\item[\field{latency_bytes}] indicates the current device latency. For
> +playback, this is the amount of bytes that must be consumed before
> +the current request can be played. For capture, this is the latency in terms of
> +bytes that the capture buffer was recorded.
>  \end{description}
>
>  Since all buffers in the queue (with one exception) should be of the size
> --
> 2.41.0
>