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-rw-r--r--sound/core/sound.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/sound/core/sound.c b/sound/core/sound.c
index b75f78f2c4b8..af89e51dd44a 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -9,6 +9,7 @@
#include <linux/time.h>
#include <linux/device.h>
#include <linux/module.h>
+#include <linux/debugfs.h>
#include <sound/core.h>
#include <sound/minors.h>
#include <sound/info.h>
@@ -39,6 +40,11 @@ MODULE_ALIAS_CHARDEV_MAJOR(CONFIG_SND_MAJOR);
int snd_ecards_limit;
EXPORT_SYMBOL(snd_ecards_limit);
+#ifdef CONFIG_SND_DEBUG
+struct dentry *sound_debugfs_root;
+EXPORT_SYMBOL_GPL(sound_debugfs_root);
+#endif
+
static struct snd_minor *snd_minors[SNDRV_OS_MINORS];
static DEFINE_MUTEX(sound_mutex);
@@ -337,6 +343,8 @@ static const char *snd_device_type_name(int type)
return "sequencer";
case SNDRV_DEVICE_TYPE_TIMER:
return "timer";
+ case SNDRV_DEVICE_TYPE_COMPRESS:
+ return "compress";
default:
return "?";
}
@@ -395,6 +403,10 @@ static int __init alsa_sound_init(void)
unregister_chrdev(major, "alsa");
return -ENOMEM;
}
+
+#ifdef CONFIG_SND_DEBUG
+ sound_debugfs_root = debugfs_create_dir("sound", NULL);
+#endif
#ifndef MODULE
pr_info("Advanced Linux Sound Architecture Driver Initialized.\n");
#endif
@@ -403,6 +415,9 @@ static int __init alsa_sound_init(void)
static void __exit alsa_sound_exit(void)
{
+#ifdef CONFIG_SND_DEBUG
+ debugfs_remove(sound_debugfs_root);
+#endif
snd_info_done();
unregister_chrdev(major, "alsa");
}