Changeset 5337491 in mainline

Timestamp:

2012-08-30T12:17:36Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

e98a8c4

Parents:

f2a92b0

Message:

libdrv, audio_pcm: Use return value for capability values.

Location:

uspace/lib/drv

Files:

• generic/remote_audio_pcm.c (modified) (2 diffs)
• include/audio_pcm_iface.h (modified) (1 diff)

uspace/lib/drv/generic/remote_audio_pcm.c

@@ -154 +154 @@
  * @return Error code.
  */
-int audio_pcm_query_cap(audio_pcm_sess_t *sess, audio_cap_t cap, unsigned *val)
-{
-        if (!val)
-                return EINVAL;
+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;
@@ -163 +161 @@
             DEV_IFACE_ID(AUDIO_PCM_BUFFER_IFACE), IPC_M_AUDIO_PCM_QUERY_CAPS,
             cap, &value);
+        async_exchange_end(exch);
         if (ret == EOK)
-                *val = value;
-        async_exchange_end(exch);
+                return value;
         return ret;
 }

uspace/lib/drv/include/audio_pcm_iface.h

@@ -72 +72 @@
 int audio_pcm_test_format(audio_pcm_sess_t *, unsigned *, unsigned *,
     pcm_sample_format_t *);
-int audio_pcm_query_cap(audio_pcm_sess_t *, audio_cap_t, unsigned *);
+int audio_pcm_query_cap(audio_pcm_sess_t *, audio_cap_t);
 int audio_pcm_register_event_callback(audio_pcm_sess_t *,
     async_client_conn_t, void *);