Changeset e172429 in mainline for uspace/lib/drv/generic/remote_audio_pcm.c

Timestamp:

2017-12-08T21:03:35Z (6 years ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

86bbca4

Parents:

a99cbc1e

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2017-12-08 02:50:42)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2017-12-08 21:03:35)

Message:

Let audio_pcm_query_cap() return value separately from error code.

File:

• uspace/lib/drv/generic/remote_audio_pcm.c (modified) (1 diff)

uspace/lib/drv/generic/remote_audio_pcm.c

@@ -221 +221 @@
  * @param sess Audio device session.
  * @param cap  Audio device capability.
- * @param val  Place to store queried value.
- *
- * @return Error code.
- */
-int audio_pcm_query_cap(audio_pcm_sess_t *sess, audio_cap_t cap)
-{
-        async_exch_t *exch = async_exchange_begin(sess);
-        sysarg_t value = 0;
+ * @param[out] val  Place to store queried value.
+ *
+ * @return Error code.
+ */
+int audio_pcm_query_cap(audio_pcm_sess_t *sess, audio_cap_t cap, sysarg_t *value)
+{
+        async_exch_t *exch = async_exchange_begin(sess);
         const int ret = async_req_2_1(exch,
             DEV_IFACE_ID(AUDIO_PCM_BUFFER_IFACE), IPC_M_AUDIO_PCM_QUERY_CAPS,
-            cap, &value);
-        async_exchange_end(exch);
-        if (ret == EOK)
-                return value;
+            cap, value);
+        async_exchange_end(exch);
         return ret;
 }