-static ssize_t
-vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct vivi_dev *dev = video_drvdata(file);
- int err;
-
- dprintk(dev, 1, "read called\n");
- mutex_lock(&dev->mutex);
- err = vb2_read(&dev->vb_vidq, data, count, ppos,
- file->f_flags & O_NONBLOCK);
- mutex_unlock(&dev->mutex);
- return err;
-}
-
-static unsigned int
-vivi_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct vivi_dev *dev = video_drvdata(file);
- struct vb2_queue *q = &dev->vb_vidq;
-
- dprintk(dev, 1, "%s\n", __func__);
- return vb2_poll(q, file, wait);
-}
-
-static int vivi_close(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct vivi_dev *dev = video_drvdata(file);
-
- dprintk(dev, 1, "close called (dev=%s), file %p\n",
- video_device_node_name(vdev), file);
-
- if (v4l2_fh_is_singular_file(file))
- vb2_queue_release(&dev->vb_vidq);
- return v4l2_fh_release(file);
-}
-
-static int vivi_mmap(struct file *file, struct vm_area_struct *vma)
-{
- struct vivi_dev *dev = video_drvdata(file);
- int ret;
-
- dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
-
- ret = vb2_mmap(&dev->vb_vidq, vma);
- dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n",
- (unsigned long)vma->vm_start,
- (unsigned long)vma->vm_end - (unsigned long)vma->vm_start,
- ret);
- return ret;
-}
-