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| author | Takashi Iwai <tiwai@suse.de> | 2009-03-24 00:35:41 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-03-24 00:35:41 +0100 |
| commit | c2f43981e5dbc92884149aa2234064cc2c340acd (patch) | |
| tree | bd5273bc7ae92a1ef47fa3f35ec6ef79d28ba270 /include/sound | |
| parent | dec14f8c0eff54549e5747f8a4d1dc6c0347e2dd (diff) | |
| parent | 28b7e343ee63454d563a71d2d5f769fc297fd5ad (diff) | |
| download | linux-c2f43981e5dbc92884149aa2234064cc2c340acd.tar.bz2 | |
Merge branch 'topic/hwdep-cleanup' into for-linus
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/hwdep.h | 38 |
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, |