otg change to host

hc

2023-11-20 2e7bd41e4e8ab3d1efdabd9e263a2f7fe79bff8c

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int getDataFromUrl(char *url);
typedef int(*RK_showprogress_callback)(double dlnow, double dltotal);
void setProgressCallBack(RK_showprogress_callback _cb);
int showProgressValue();