---

yaml --- r: 132727 b: refs/heads/master c: e0d8064 h: refs/heads/master i: 132725: 797b9be 132723: 0e34b9f 132719: b867972 v: v3
git-mirror · Feb 5, 2009 · cea6dee · cea6dee
1 parent b3e2cd5
commit cea6dee
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Showing 2 changed files with 25 additions and 15 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 345d0b1964df83a6c3fff815fabd34e37265581f
+refs/heads/master: e0d80648c0037b8b815317a52b782d4ea0c287f0
diff --git a/trunk/include/sound/hwdep.h b/trunk/include/sound/hwdep.h
@@ -27,18 +27,28 @@
 
 struct snd_hwdep;
 
+/* hwdep file ops; all ops can be NULL */
 struct snd_hwdep_ops {
-	long long (*llseek) (struct snd_hwdep *hw, struct file * file, long long offset, int orig);
-	long (*read) (struct snd_hwdep *hw, char __user *buf, long count, loff_t *offset);
-	long (*write) (struct snd_hwdep *hw, const char __user *buf, long count, loff_t *offset);
-	int (*open) (struct snd_hwdep * hw, struct file * file);
-	int (*release) (struct snd_hwdep *hw, struct file * file);
-	unsigned int (*poll) (struct snd_hwdep *hw, struct file * file, poll_table * wait);
-	int (*ioctl) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
-	int (*ioctl_compat) (struct snd_hwdep *hw, struct file * file, unsigned int cmd, unsigned long arg);
-	int (*mmap) (struct snd_hwdep *hw, struct file * file, struct vm_area_struct * vma);
-	int (*dsp_status) (struct snd_hwdep *hw, struct snd_hwdep_dsp_status *status);
-	int (*dsp_load) (struct snd_hwdep *hw, struct snd_hwdep_dsp_image *image);
+	long long (*llseek)(struct snd_hwdep *hw, struct file *file,
+			    long long offset, int orig);
+	long (*read)(struct snd_hwdep *hw, char __user *buf,
+		     long count, loff_t *offset);
+	long (*write)(struct snd_hwdep *hw, const char __user *buf,
+		      long count, loff_t *offset);
+	int (*open)(struct snd_hwdep *hw, struct file * file);
+	int (*release)(struct snd_hwdep *hw, struct file * file);
+	unsigned int (*poll)(struct snd_hwdep *hw, struct file *file,
+			     poll_table *wait);
+	int (*ioctl)(struct snd_hwdep *hw, struct file *file,
+		     unsigned int cmd, unsigned long arg);
+	int (*ioctl_compat)(struct snd_hwdep *hw, struct file *file,
+			    unsigned int cmd, unsigned long arg);
+	int (*mmap)(struct snd_hwdep *hw, struct file *file,
+		    struct vm_area_struct *vma);
+	int (*dsp_status)(struct snd_hwdep *hw,
+			  struct snd_hwdep_dsp_status *status);
+	int (*dsp_load)(struct snd_hwdep *hw,
+			struct snd_hwdep_dsp_image *image);
 };
 
 struct snd_hwdep {
@@ -61,9 +71,9 @@ struct snd_hwdep {
 	void (*private_free) (struct snd_hwdep *hwdep);
 
 	struct mutex open_mutex;
-	int used;
-	unsigned int dsp_loaded;
-	unsigned int exclusive: 1;
+	int used;			/* reference counter */
+	unsigned int dsp_loaded;	/* bit fields of loaded dsp indices */
+	unsigned int exclusive:1;	/* exclusive access mode */
 };
 
 extern int snd_hwdep_new(struct snd_card *card, char *id, int device,