[gnome-control-center] sound: Add some (element-type) annotations to appease g-i master

[Bastien Nocera <hadess src gnome org>]

commit 3295036afb738ac04ec8e720cab7248d31ea1797
Author: Dan Winship <danw gnome org>
Date:   Wed Aug 31 09:40:29 2011 +0100

    sound: Add some (element-type) annotations to appease g-i master
    
    See gnome-shell commit 14e8cba2b184b16d0dbd9beb929860a1e1155709

 panels/sound/gvc-mixer-card.c   |    9 +++++++++
 panels/sound/gvc-mixer-stream.c |    9 +++++++++
 2 files changed, 18 insertions(+), 0 deletions(-)
---
diff --git a/panels/sound/gvc-mixer-card.c b/panels/sound/gvc-mixer-card.c
index 56502e3..168bc79 100644
--- a/panels/sound/gvc-mixer-card.c
+++ b/panels/sound/gvc-mixer-card.c
@@ -263,6 +263,11 @@ gvc_mixer_card_change_profile (GvcMixerCard *card,
         return TRUE;
 }
 
+/**
+ * gvc_mixer_card_get_profiles:
+ *
+ * Return value: (transfer none) (element-type GvcMixerCardProfile):
+ */
 const GList *
 gvc_mixer_card_get_profiles (GvcMixerCard *card)
 {
@@ -281,6 +286,10 @@ sort_profiles (GvcMixerCardProfile *a,
         return -1;
 }
 
+/**
+ * gvc_mixer_card_set_profiles:
+ * @profiles: (transfer full) (element-type GvcMixerCardProfile):
+ */
 gboolean
 gvc_mixer_card_set_profiles (GvcMixerCard *card,
                              GList        *profiles)
diff --git a/panels/sound/gvc-mixer-stream.c b/panels/sound/gvc-mixer-stream.c
index 78de6b3..f35954a 100644
--- a/panels/sound/gvc-mixer-stream.c
+++ b/panels/sound/gvc-mixer-stream.c
@@ -508,6 +508,11 @@ gvc_mixer_stream_change_port (GvcMixerStream *stream,
         return GVC_MIXER_STREAM_GET_CLASS (stream)->change_port (stream, port);
 }
 
+/**
+ * gvc_mixer_stream_get_ports:
+ *
+ * Return value: (transfer none) (element-type GvcMixerStreamPort):
+ */
 const GList *
 gvc_mixer_stream_get_ports (GvcMixerStream *stream)
 {
@@ -526,6 +531,10 @@ sort_ports (GvcMixerStreamPort *a,
         return -1;
 }
 
+/**
+ * gvc_mixer_stream_set_ports:
+ * @ports: (transfer full) (element-type GvcMixerStreamPort):
+ */
 gboolean
 gvc_mixer_stream_set_ports (GvcMixerStream *stream,
                             GList          *ports)