UVC_Streaming_control

struct uvc_streaming_control {  
    __u16 bmHint;  
    __u8  bFormatIndex; //视频格式索引  
    __u8  bFrameIndex;  //视频帧索引  
    __u32 dwFrameInterval;  //视频帧间隔  
    __u16 wKeyFrameRate;    //  
    __u16 wPFrameRate;  
    __u16 wCompQuality;  
    __u16 wCompWindowSize;  
    __u16 wDelay;   //延时  
    __u32 dwMaxVideoFrameSize;  //最大视频帧大小  
    __u32 dwMaxPayloadTransferSize;  
    __u32 dwClockFrequency; //时钟频率  
    __u8  bmFramingInfo;  
    __u8  bPreferedVersion;  
    __u8  bMinVersion;  //版本  
    __u8  bMaxVersion;  //版本  
} __attribute__((__packed__));