struct v4l2_ctrl_handler ctrl_handler; // 定义一个控制器处理程序结构体 INIT_V4L2_CTRL_HANDLER(&ctrl_handler); // 初始化控制器处理程序结构体 ``` ### 步骤3:调用v4l2_ctrl_handler_init函数进行初始化 ```c v4l2_ctrl_handler_init(&ctrl_handler, 1); // 传入控制器处理程序结构体和设备编号进...
…nit() The ov2680 driver has 9 controls now and the call to v4l2_ctrl_new_fwnode_properties() adds 2 more. Tell v4l2_ctrl_handler_init() to pre-allocate space for 11 controls to match this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sakari Ailus <sakari....