Signed-off-by: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
diff --git a/drivers/media/video/em28xx/em28xx-audio.c b/drivers/media/video/em28xx/em28xx-audio.c
index 302553a..56739a4 100644
--- a/drivers/media/video/em28xx/em28xx-audio.c
+++ b/drivers/media/video/em28xx/em28xx-audio.c
@@ -464,6 +464,13 @@ static int em28xx_vol_put(struct snd_kcontrol *kcontrol,
val |= rc & 0x8000; /* Preserve the mute flag */
rc = em28xx_write_ac97(dev, kcontrol->private_value, val);
+ if (rc < 0)
+ goto err;
+
+ dprintk("%sleft vol %d, right vol %d (0x%04x) to ac97 volume control 0x%04x\n",
+ (val & 0x8000) ? "muted " : "",
+ 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f),
+ val, (int)kcontrol->private_value);
err:
mutex_unlock(&dev->lock);
@@ -482,6 +489,11 @@ static int em28xx_vol_get(struct snd_kcontrol *kcontrol,
if (val < 0)
return val;
+ dprintk("%sleft vol %d, right vol %d (0x%04x) from ac97 volume control 0x%04x\n",
+ (val & 0x8000) ? "muted " : "",
+ 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f),
+ val, (int)kcontrol->private_value);
+
value->value.integer.value[0] = 0x1f - (val & 0x1f);
value->value.integer.value[1] = 0x1f - ((val << 8) & 0x1f);
@@ -506,6 +518,13 @@ static int em28xx_vol_put_mute(struct snd_kcontrol *kcontrol,
rc |= 0x8000;
rc = em28xx_write_ac97(dev, kcontrol->private_value, rc);
+ if (rc < 0)
+ goto err;
+
+ dprintk("%sleft vol %d, right vol %d (0x%04x) to ac97 volume control 0x%04x\n",
+ (val & 0x8000) ? "muted " : "",
+ 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f),
+ val, (int)kcontrol->private_value);
err:
mutex_unlock(&dev->lock);
@@ -529,6 +548,11 @@ static int em28xx_vol_get_mute(struct snd_kcontrol *kcontrol,
else
value->value.integer.value[0] = 1;
+ dprintk("%sleft vol %d, right vol %d (0x%04x) from ac97 volume control 0x%04x\n",
+ (val & 0x8000) ? "muted " : "",
+ 0x1f - ((val >> 8) & 0x1f), 0x1f - (val & 0x1f),
+ val, (int)kcontrol->private_value);
+
return 0;
}
@@ -556,6 +580,8 @@ static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev,
err = snd_ctl_add(card, kctl);
if (err < 0)
return err;
+ dprintk("Added control %s for ac97 volume control 0x%04x\n",
+ ctl_name, id);
memset (&tmp, 0, sizeof(tmp));
tmp.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
@@ -572,6 +598,8 @@ static int em28xx_cvol_new(struct snd_card *card, struct em28xx *dev,
err = snd_ctl_add(card, kctl);
if (err < 0)
return err;
+ dprintk("Added control %s for ac97 volume control 0x%04x\n",
+ ctl_name, id);
return 0;
}
--
1.7.1
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