C++ (Cpp) cpia2_usb_stream_start Exemples

Exemple #1

Fichier : cpia2_usb.c Projet : acton393/linux

/* Resume device - start device. */
static int cpia2_usb_resume(struct usb_interface *intf)
{
	struct camera_data *cam = usb_get_intfdata(intf);

	mutex_lock(&cam->v4l2_lock);
	v4l2_ctrl_handler_setup(&cam->hdl);
	if (cam->streaming) {
		cam->streaming = 0;
		cpia2_usb_stream_start(cam,
				cam->params.camera_state.stream_mode);
	}
	mutex_unlock(&cam->v4l2_lock);

	dev_info(&intf->dev, "coming out of suspend..\n");
	return 0;
}

Exemple #2

Fichier : cpia2_v4l.c Projet : Anjali05/linux

static int cpia2_streamon(struct file *file, void *fh, enum v4l2_buf_type type)
{
	struct camera_data *cam = video_drvdata(file);
	int ret = -EINVAL;

	DBG("VIDIOC_STREAMON, streaming=%d\n", cam->streaming);
	if (!cam->mmapped || type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
		return -EINVAL;

	if (!cam->streaming) {
		ret = cpia2_usb_stream_start(cam,
				cam->params.camera_state.stream_mode);
		if (!ret)
			v4l2_ctrl_grab(cam->usb_alt, true);
	}
	return ret;
}