Dapm mixer names are truncated to 32 bytes, while alsa control names are 44
bytes wide.
Subsequent usage of functions like snd_ctl_find_id fail because of the
mismatch. Unless there's a limitation I don't understand, the following patch
fixes the limit back to 44 bytes.
--
Robert
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index ea20138..f22a1bb 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -281,7 +281,7 @@ static int dapm_new_mixer(struct snd_soc_codec *codec,
struct snd_soc_dapm_widget *w)
{
int i, ret = 0;
- char name[32];
+ char name[44];
struct snd_soc_dapm_path *path;
/* add kcontrol */
@@ -295,7 +295,8 @@ static int dapm_new_mixer(struct snd_soc_codec *codec,
continue;
/* add dapm control with long name */
- snprintf(name, 32, "%s %s", w->name, w->kcontrols[i].name);
+ snprintf(name, 43, "%s %s", w->name, w->kcontrols[i].name);
+ name[43] = 0;
path->long_name = kstrdup (name, GFP_KERNEL);
if (path->long_name == NULL)
return -ENOMEM;
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