52 static int uleds_open(struct inode *inode, struct file *file)  in uleds_open()  argument
67 	file->private_data = udev;  in uleds_open()
68 	stream_open(inode, file);  in uleds_open()
73 static ssize_t uleds_write(struct file *file, const char __user *buffer,  in uleds_write()  argument
76 	struct uleds_device *udev = file->private_data;  in uleds_write()
131 static ssize_t uleds_read(struct file *file, char __user *buffer, size_t count,  in uleds_read()  argument
134 	struct uleds_device *udev = file->private_data;  in uleds_read()
147 		} else if (!udev->new_data && (file->f_flags & O_NONBLOCK)) {  in uleds_read()
161 		if (!(file->f_flags & O_NONBLOCK))  in uleds_read()
170 static __poll_t uleds_poll(struct file *file, poll_table *wait)  in uleds_poll()  argument
172 	struct uleds_device *udev = file->private_data;  in uleds_poll()
174 	poll_wait(file, &udev->waitq, wait);  in uleds_poll()
182 static int uleds_release(struct inode *inode, struct file *file)  in uleds_release()  argument
184 	struct uleds_device *udev = file->private_data;  in uleds_release()