;dev->button=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_button,NULL);dev->int32=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_int32,NULL);dev->int64=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_int64,NULL);dev->boolean=v4l2_ctrl_new_custom(hdl,&vivi_ctrl_boolean,NULL);dev->menu=v4l2_ctrl_new_custom(hdl,...
structv4l2_ctrl_ops{int(*g_volatile_ctrl)(structv4l2_ctrl *ctrl);int(*try_ctrl)(structv4l2_ctrl *ctrl);int(*s_ctrl)(structv4l2_ctrl *ctrl); }; 通常是需要实现s_ctrl: staticintfoo_s_ctrl(structv4l2_ctrl *ctrl){structfoo*state=container_of(ctrl->handler,structfoo, ctrl_handler);switch...
1staticint__init vivi_create_instance(intinst)2{3structvivi_dev *dev;4structvideo_device *vfd;//video_device结构体定义5structv4l2_ctrl_handler *hdl;6structvb2_queue *q;7intret;89dev = kzalloc(sizeof(*dev), GFP_KERNEL);10if(!dev)11return-ENOMEM;1213snprintf(dev->v4l2_dev.name,sizeof...
pixel_rate 0x009f0902 (int64) : min=0 max=0 step=0 default=0 value=120000000 flags=read-only test_pattern 0x009f0903 (menu) : min=0 max=4 default=0 value=0 4) 显示摄像头参数 v4l2-ctl --list-ctrls --device /dev/video0 或者 v4l2-ctl -d /dev/video0 -l 显示摄像头参数 rk3568...
General/Common options:--all display all information available-C,--get-ctrl <ctrl>[,<ctrl>...]getthevalueofthe controls [VIDIOC_G_EXT_CTRLS]-c,--set-ctrl <ctrl>=<val>[,<ctrl>=<val>...]setthevalueofthe controls [VIDIOC_S_EXT_CTRLS]-D,--info show driver info [VIDIOC_QUERYCAP]...
struct v4l2_ctrl *hue; struct v4l2_ctrl *volume; struct v4l2_ctrl *button; struct v4l2_ctrl *boolean; struct v4l2_ctrl *int32; struct v4l2_ctrl *int64; struct v4l2_ctrl *menu; struct v4l2_ctrl *string; spinlock_t slock; ...
int v4l2_subdev_g_ctrl (struct v4l2_subdev *sd, struct v4l2_control *control) EXPORT_SYMBOL (v4l2_subdev_g_ctrl) s32 v4l2_ctrl_g_ctrl (struct v4l2_ctrl *ctrl) EXPORT_SYMBOL (v4l2_ctrl_g_ctrl) s64 v4l2_ctrl_g_ctrl_int64 (struct v4l2_ctrl *ctrl) EXPORT_SYMBOL (v4l2_ctrl_g_ctrl_in...
While VIDIOC_QUERYCTRL is limited to 32 bit min/max/step/def values for controls, the upcoming VIDIOC_QUERY_EXT_CTRL isn't. So increase the internal representation to 64 bits in preparation. http://vger.kernel.org/majordomo-info.html
(const struct v4l2_ctrl *ctrl, } } -static void std_init(const struct v4l2_ctrl *ctrl, +static void std_init(const struct v4l2_ctrl *ctrl, u32 idx, union v4l2_ctrl_ptr ptr) { switch (ctrl->type) { @@ -1207,6 +1207,14 @@ static void std_log(const struct v4l2_ctrl *ctrl)...
==>device->GetFormatFrameDurationRange(v4l2_format, frame_size, &duration_range); ==>V4L2Wrapper::GetFormatFrameDurationRange(uint32_t v4l2_format,const std::array<int32_t, 2>& size,std::array<int64_t, 2>* duration_range) 源码如下:...