Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (430 commits)
  ALSA: hda - Add quirk for Acer Ferrari 5000
  ALSA: hda - Use cached calls to get widget caps and pin caps
  ALSA: hda - Don't create empty/single-item input source
  ALSA: hda - Fix the wrong pin-cap check in patch_realtek.c
  ALSA: hda - Cache pin-cap values
  ALSA: hda - Avoid output amp manipulation to digital mic pins
  ALSA: hda - Add function id to proc output
  ALSA: pcm - Safer boundary checks
  ALSA: hda - Detect digital-mic inputs on ALC663 / ALC272
  ALSA: sound/ali5451: typo: s/resouces/resources/
  ALSA: hda - Don't show the current connection for power widgets
  ALSA: Fix wrong pointer to dev_err() in arm/pxa2xx-ac97-lib.c
  ASoC: Declare Headset as Mic and Headphone widgets for SDP3430
  ASoC: OMAP: N810: Add more jack functions
  ASoC: OMAP: N810: Mark not connected input pins
  ASoC: Add FLL support for WM8400
  ALSA: hda - Don't reset stream at each prepare callback
  ALSA: hda - Don't reset BDL unnecessarily
  ALSA: pcm - Fix delta calculation at boundary overlap
  ALSA: pcm - Reset invalid position even without debug option
  ...

1 files changed, 24 insertions, 14 deletions

diff --git a/include/sound/hwdep.h b/include/sound/hwdep.h
index d9eea013c753..8c05e47a4090 100644
--- a/include/sound/hwdep.h
+++ b/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,