From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Mon, 18 Nov 2019 04:22:44 +0000 (+0900)
Subject: ctl: card: add an API to remove user-defined elements
X-Git-Tag: v0.1.0~397
X-Git-Url: https://git.alsa-project.org/?a=commitdiff_plain;h=1b9413d6271b60607d1842855eca1dfae7b9ef2e;p=alsa-gobject.git

ctl: card: add an API to remove user-defined elements
---

diff --git a/src/ctl/alsactl.map b/src/ctl/alsactl.map
index 1a5637d..967f757 100644
--- a/src/ctl/alsactl.map
+++ b/src/ctl/alsactl.map
@@ -23,6 +23,7 @@ ALSA_GOBJECT_0_0_0 {
     "alsactl_card_command_elem_tlv";
     "alsactl_card_add_elems";
     "alsactl_card_replace_elems";
+    "alsactl_card_remove_elems";
 
     "alsactl_card_info_get_type";
 
diff --git a/src/ctl/card.c b/src/ctl/card.c
index 94b4741..d1e106b 100644
--- a/src/ctl/card.c
+++ b/src/ctl/card.c
@@ -612,3 +612,24 @@ void alsactl_card_replace_elems(ALSACtlCard *self, const ALSACtlElemId *elem_id,
     add_or_replace_elems(priv->fd, elem_id, elem_count, elem_info, TRUE,
                          entries, error);
 }
+
+/**
+ * alsactl_card_remove_elems:
+ * @self: A #ALSACtlCard.
+ * @elem_id: A #ALSACtlElemId.
+ * @error: A #GError.
+ *
+ * Remove user-defined elements.
+ */
+void alsactl_card_remove_elems(ALSACtlCard *self, const ALSACtlElemId *elem_id,
+                               GError **error)
+{
+    ALSACtlCardPrivate *priv;
+
+    g_return_if_fail(ALSACTL_IS_CARD(self));
+    g_return_if_fail(elem_id != NULL);
+    priv = alsactl_card_get_instance_private(self);
+
+    if (ioctl(priv->fd, SNDRV_CTL_IOCTL_ELEM_REMOVE, elem_id) < 0)
+        generate_error(error, errno);
+}
diff --git a/src/ctl/card.h b/src/ctl/card.h
index 171ff8c..570b8a1 100644
--- a/src/ctl/card.h
+++ b/src/ctl/card.h
@@ -83,6 +83,8 @@ void alsactl_card_add_elems(ALSACtlCard *self, const ALSACtlElemId *elem_id,
 void alsactl_card_replace_elems(ALSACtlCard *self, const ALSACtlElemId *elem_id,
                             guint elem_count, ALSACtlElemInfo *elem_info,
                             GList **entries, GError **error);
+void alsactl_card_remove_elems(ALSACtlCard *self, const ALSACtlElemId *elem_id,
+                               GError **error);
 
 G_END_DECLS
 
diff --git a/tests/alsactl-card b/tests/alsactl-card
index 8c6a664..fc68e23 100644
--- a/tests/alsactl-card
+++ b/tests/alsactl-card
@@ -25,6 +25,7 @@ methods = (
     'command_elem_tlv',
     'add_elems',
     'replace_elems',
+    'remove_elems',
 )
 signals = ()