几个I2C从设备与CX3连接，I2C操作可以阻止UVC流吗？

亲爱的先生，
有几个I2C从设备附在我的CX3视频板上。所有I2C操作都将在EsUVCuvCppthRead（）中完成。
我想知道这些耗时的I2C操作是否能阻止视频流？
例如，UVC头由CPU手动添加，这是由ESUVCUVCAPDMACARBACK（）完成的，在ESUVCUVCppthRead（）中进行I2C操作，阻止这个动作，然后阻止视频流吗？
最好的，
戴维



     以下为原文
  Dear Sir,

There are several I2C slave devices attached with my CX3 video board. all I2C operation will done within esUVCUvcAppThread_Entry().

I want to know whether these I2C operations which are time-consuming can block video streaming?

For example,UVC header is added by CPU manually, which is done by  esUVCUvcAppDmaCallback(), do I2C operation in esUVCUvcAppThread_Entry() block this action and then block video streaming?

Best,

David