[libvirt] [PATCH v3] qemu: sound: Support intel 'ich6' model

[Eric Blake]

On 01/21/2011 03:53 PM, Cole Robinson wrote:
> In QEMU, the card itself is a PCI device, but it requires a codec
> (either -device hda-output or -device hda-duplex) to actually output
> sound. Specifying <sound model='ich6'/> gives us -device intel-hda
> -device hda-duplex I think it's important that a simple <sound model='ich6'/>
> sets up a useful codec, to have consistent behavior with all other sound cards.
> 
> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index c20f031..627ec43 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -1774,11 +1774,13 @@ qemuBuildSoundDevStr(virDomainSoundDefPtr sound)
>          goto error;
>      }
>  
> -    /* Hack for 2 wierdly unusal devices name in QEMU */
> +    /* Hack for wierdly unusal devices name in QEMU */

Pre-existing double typo, but you might as well fix it while touching
this line:

s/wierdly unusal/weirdly unusual/

>  
> +static char *
> +qemuBuildSoundCodecStr(virDomainSoundDefPtr sound,
> +                       const char *codec)
> +{
> +    virBuffer buf = VIR_BUFFER_INITIALIZER;
> +    int cad = 0;
> +
> +    virBufferVSprintf(&buf, "%s", codec);
> +    virBufferVSprintf(&buf, ",id=%s-codec%d", sound->info.alias, cad);
> +    virBufferVSprintf(&buf, ",bus=%s.0", sound->info.alias);
> +    virBufferVSprintf(&buf, ",cad=%d", cad);

It's slightly more efficient to use a single virBufferVSprintf with
multiple arguments, but I don't know if it would hurt read-ability.  So
no problems if you keep it this way.

ACK with the spelling nit fixed.

-- 
Eric Blake   eblake at redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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