use C99 initializers for audio_pcm_ops

Signed-off-by: Juan Quintela <quintela@redhat.com>

audio/alsaaudio.c

@@ -983,17 +983,17 @@ static struct audio_option alsa_options[] = {
 };
 
 static struct audio_pcm_ops alsa_pcm_ops = {
-    alsa_init_out,
-    alsa_fini_out,
-    alsa_run_out,
-    alsa_write,
-    alsa_ctl_out,
+    .init_out = alsa_init_out,
+    .fini_out = alsa_fini_out,
+    .run_out  = alsa_run_out,
+    .write    = alsa_write,
+    .ctl_out  = alsa_ctl_out,
 
-    alsa_init_in,
-    alsa_fini_in,
-    alsa_run_in,
-    alsa_read,
-    alsa_ctl_in
+    .init_in  = alsa_init_in,
+    .fini_in  = alsa_fini_in,
+    .run_in   = alsa_run_in,
+    .read     = alsa_read,
+    .ctl_in   = alsa_ctl_in
 };
 
 struct audio_driver alsa_audio_driver = {

audio/coreaudio.c

@@ -525,17 +525,11 @@ static struct audio_option coreaudio_options[] = {
 };
 
 static struct audio_pcm_ops coreaudio_pcm_ops = {
-    coreaudio_init_out,
-    coreaudio_fini_out,
-    coreaudio_run_out,
-    coreaudio_write,
-    coreaudio_ctl_out,
-
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
+    .init_out = coreaudio_init_out,
+    .fini_out = coreaudio_fini_out,
+    .run_out  = coreaudio_run_out,
+    .write    = coreaudio_write,
+    .ctl_out  = coreaudio_ctl_out
 };
 
 struct audio_driver coreaudio_audio_driver = {

audio/dsoundaudio.c

@@ -1079,17 +1079,17 @@ static struct audio_option dsound_options[] = {
 };
 
 static struct audio_pcm_ops dsound_pcm_ops = {
-    dsound_init_out,
-    dsound_fini_out,
-    dsound_run_out,
-    dsound_write,
-    dsound_ctl_out,
+    .init_out = dsound_init_out,
+    .fini_out = dsound_fini_out,
+    .run_out  = dsound_run_out,
+    .write    = dsound_write,
+    .ctl_out  = dsound_ctl_out,
 
-    dsound_init_in,
-    dsound_fini_in,
-    dsound_run_in,
-    dsound_read,
-    dsound_ctl_in
+    .init_in  = dsound_init_in,
+    .fini_in  = dsound_fini_in,
+    .run_in   = dsound_run_in,
+    .read     = dsound_read,
+    .ctl_in   = dsound_ctl_in
 };
 
 struct audio_driver dsound_audio_driver = {

audio/esdaudio.c

@@ -571,17 +571,17 @@ struct audio_option qesd_options[] = {
 };
 
 static struct audio_pcm_ops qesd_pcm_ops = {
-    qesd_init_out,
-    qesd_fini_out,
-    qesd_run_out,
-    qesd_write,
-    qesd_ctl_out,
+    .init_out = qesd_init_out,
+    .fini_out = qesd_fini_out,
+    .run_out  = qesd_run_out,
+    .write    = qesd_write,
+    .ctl_out  = qesd_ctl_out,
 
-    qesd_init_in,
-    qesd_fini_in,
-    qesd_run_in,
-    qesd_read,
-    qesd_ctl_in,
+    .init_in  = qesd_init_in,
+    .fini_in  = qesd_fini_in,
+    .run_in   = qesd_run_in,
+    .read     = qesd_read,
+    .ctl_in   = qesd_ctl_in,
 };
 
 struct audio_driver esd_audio_driver = {

audio/fmodaudio.c

@@ -669,17 +669,17 @@ static struct audio_option fmod_options[] = {
 };
 
 static struct audio_pcm_ops fmod_pcm_ops = {
-    fmod_init_out,
-    fmod_fini_out,
-    fmod_run_out,
-    fmod_write,
-    fmod_ctl_out,
+    .init_out = fmod_init_out,
+    .fini_out = fmod_fini_out,
+    .run_out  = fmod_run_out,
+    .write    = fmod_write,
+    .ctl_out  = fmod_ctl_out,
 
-    fmod_init_in,
-    fmod_fini_in,
-    fmod_run_in,
-    fmod_read,
-    fmod_ctl_in
+    .init_in = fmod_init_in,
+    .fini_in = fmod_fini_in,
+    .run_in  = fmod_run_in,
+    .read    = fmod_read,
+    .ctl_in  = fmod_ctl_in
 };
 
 struct audio_driver fmod_audio_driver = {

audio/noaudio.c

@@ -146,17 +146,17 @@ static void no_audio_fini (void *opaque)
 }
 
 static struct audio_pcm_ops no_pcm_ops = {
-    no_init_out,
-    no_fini_out,
-    no_run_out,
-    no_write,
-    no_ctl_out,
+    .init_out = no_init_out,
+    .fini_out = no_fini_out,
+    .run_out  = no_run_out,
+    .write    = no_write,
+    .ctl_out  = no_ctl_out,
 
-    no_init_in,
-    no_fini_in,
-    no_run_in,
-    no_read,
-    no_ctl_in
+    .init_in  = no_init_in,
+    .fini_in  = no_fini_in,
+    .run_in   = no_run_in,
+    .read     = no_read,
+    .ctl_in   = no_ctl_in
 };
 
 struct audio_driver no_audio_driver = {

audio/ossaudio.c

@@ -764,17 +764,17 @@ static struct audio_option oss_options[] = {
 };
 
 static struct audio_pcm_ops oss_pcm_ops = {
-    oss_init_out,
-    oss_fini_out,
-    oss_run_out,
-    oss_write,
-    oss_ctl_out,
+    .init_out = oss_init_out,
+    .fini_out = oss_fini_out,
+    .run_out  = oss_run_out,
+    .write    = oss_write,
+    .ctl_out  = oss_ctl_out,
 
-    oss_init_in,
-    oss_fini_in,
-    oss_run_in,
-    oss_read,
-    oss_ctl_in
+    .init_in  = oss_init_in,
+    .fini_in  = oss_fini_in,
+    .run_in   = oss_run_in,
+    .read     = oss_read,
+    .ctl_in   = oss_ctl_in
 };
 
 struct audio_driver oss_audio_driver = {

audio/paaudio.c

@@ -493,16 +493,17 @@ struct audio_option qpa_options[] = {
 };
 
 static struct audio_pcm_ops qpa_pcm_ops = {
-    qpa_init_out,
-    qpa_fini_out,
-    qpa_run_out,
-    qpa_write,
-    qpa_ctl_out,
-    qpa_init_in,
-    qpa_fini_in,
-    qpa_run_in,
-    qpa_read,
-    qpa_ctl_in
+    .init_out = qpa_init_out,
+    .fini_out = qpa_fini_out,
+    .run_out  = qpa_run_out,
+    .write    = qpa_write,
+    .ctl_out  = qpa_ctl_out,
+
+    .init_in  = qpa_init_in,
+    .fini_in  = qpa_fini_in,
+    .run_in   = qpa_run_in,
+    .read     = qpa_read,
+    .ctl_in   = qpa_ctl_in
 };
 
 struct audio_driver pa_audio_driver = {

audio/sdlaudio.c

@@ -428,17 +428,11 @@ static struct audio_option sdl_options[] = {
 };
 
 static struct audio_pcm_ops sdl_pcm_ops = {
-    sdl_init_out,
-    sdl_fini_out,
-    sdl_run_out,
-    sdl_write_out,
-    sdl_ctl_out,
-
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
+    .init_out = sdl_init_out,
+    .fini_out = sdl_fini_out,
+    .run_out  = sdl_run_out,
+    .write    = sdl_write_out,
+    .ctl_out  = sdl_ctl_out,
 };
 
 struct audio_driver sdl_audio_driver = {

audio/wavaudio.c

@@ -239,17 +239,11 @@ static struct audio_option wav_options[] = {
 };
 
 static struct audio_pcm_ops wav_pcm_ops = {
-    wav_init_out,
-    wav_fini_out,
-    wav_run_out,
-    wav_write_out,
-    wav_ctl_out,
-
-    NULL,
-    NULL,
-    NULL,
-    NULL,
-    NULL
+    .init_out = wav_init_out,
+    .fini_out = wav_fini_out,
+    .run_out  = wav_run_out,
+    .write    = wav_write_out,
+    .ctl_out  = wav_ctl_out,
 };
 
 struct audio_driver wav_audio_driver = {