68 static int snapshot_open(struct inode *inode, struct file *filp)  in snapshot_open()  argument
80 	if ((filp->f_flags & O_ACCMODE) == O_RDWR) {  in snapshot_open()
90 	nonseekable_open(inode, filp);  in snapshot_open()
92 	filp->private_data = data;  in snapshot_open()
94 	if ((filp->f_flags & O_ACCMODE) == O_RDONLY) {  in snapshot_open()
120 static int snapshot_release(struct inode *inode, struct file *filp)  in snapshot_release()  argument
128 	data = filp->private_data;  in snapshot_release()
141 static ssize_t snapshot_read(struct file *filp, char __user *buf,  in snapshot_read()  argument
149 	data = filp->private_data;  in snapshot_read()
168 static ssize_t snapshot_write(struct file *filp, const char __user *buf,  in snapshot_write()  argument
176 	data = filp->private_data;  in snapshot_write()
190 static long snapshot_ioctl(struct file *filp, unsigned int cmd,  in snapshot_ioctl()  argument
208 	data = filp->private_data;  in snapshot_ioctl()