初始化部分，加上CDC 回调，
主要在枚举不通过，CH340是0XFF的类，标准的是CDC 类为0x02,然后就是修改
#define  CH340X_CLASS   0xff
if((pphost->device_prop.Itf_Desc[0].bInterfaceClass  == CH340X_CLASS)&& \
                        (pphost->device_prop.Itf_Desc[0].bInterfaceSubClass  == 0x01) && \
      (pphost->device_prop.Itf_Desc[0].bInterfaceProtocol == 0x02)){
               
                                ret = 0x02;
            /*Collect the notification endpoint address and length*/
    CDC_Machine.CDC_CommItf.ep_addr = pphost->device_prop.Ep_Desc[0][2].bEndpointAddress;
    CDC_Machine.CDC_CommItf.length  = pphost->device_prop.Ep_Desc[0][2].wMaxPacketSize;

    if(pphost->device_prop.Ep_Desc[0][2].bEndpointAddress & 0x80)
    {
      CDC_Machine.CDC_CommItf.notificationEp =\
        (pphost->device_prop.Ep_Desc[0][2].bEndpointAddress);
    }

謝謝樓主的分享,辛苦了.

没怎么明白，不过还是谢谢