ALSA: isight: add AudioEnable register write
which is needed to get the iSight to talk.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index 10a9b9b..1a8da26 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -345,7 +345,7 @@
static int isight_start_streaming(struct isight *isight)
{
- __be32 sample_rate;
+ __be32 value;
unsigned int i;
int err;
@@ -356,10 +356,10 @@
return 0;
}
- sample_rate = cpu_to_be32(RATE_48000);
+ value = cpu_to_be32(RATE_48000);
err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
isight->audio_base + REG_SAMPLE_RATE,
- &sample_rate, 4);
+ &value, 4);
if (err < 0)
return err;
@@ -367,6 +367,13 @@
if (err < 0)
goto error;
+ value = cpu_to_be32(AUDIO_ENABLE);
+ err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
+ isight->audio_base + REG_AUDIO_ENABLE,
+ &value, 4);
+ if (err < 0)
+ goto err_resources;
+
isight->context = fw_iso_context_create(isight->device->card,
FW_ISO_CONTEXT_RECEIVE,
isight->resources.channel,
@@ -400,6 +407,10 @@
fw_iso_context_destroy(isight->context);
isight->context = NULL;
err_resources:
+ value = 0;
+ snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
+ isight->audio_base + REG_AUDIO_ENABLE,
+ &value, 4);
fw_iso_resources_free(&isight->resources);
error:
return err;