47 static int snapshot_open(struct inode *inode, struct file *filp)  in snapshot_open()  argument
62 	if ((filp->f_flags & O_ACCMODE) == O_RDWR) {  in snapshot_open()
67 	nonseekable_open(inode, filp);  in snapshot_open()
69 	filp->private_data = data;  in snapshot_open()
71 	if ((filp->f_flags & O_ACCMODE) == O_RDONLY) {  in snapshot_open()
110 static int snapshot_release(struct inode *inode, struct file *filp)  in snapshot_release()  argument
117 	data = filp->private_data;  in snapshot_release()
135 static ssize_t snapshot_read(struct file *filp, char __user *buf,  in snapshot_read()  argument
144 	data = filp->private_data;  in snapshot_read()
168 static ssize_t snapshot_write(struct file *filp, const char __user *buf,  in snapshot_write()  argument
177 	data = filp->private_data;  in snapshot_write()
197 static long snapshot_ioctl(struct file *filp, unsigned int cmd,  in snapshot_ioctl()  argument
216 	data = filp->private_data;  in snapshot_ioctl()