C/C++库_libusb

#include "tanhoapi.h" #include<libusb.h> #include<string.h> struct libusb_device_handle *devh; int transferred_bytes=0; TanhoAPI::TanhoAPI() { } bool TanhoAPI::TanhoCam_DriverInit(unsigned int CAMERA_TYPE) { return libusb_init(NULL); } void TanhoAPI::TanhoCam_OpenDriver(wchar_t *nID) { devh=libusb_open_device_with_vid_pid(NULL,0xaa55,0x8866); // libusb_device **devs; // ssize_t cnt = libusb_get_device_list(NULL, &devs); // int current = 0; // libusb_device* target = NULL; // for (int i = 0; i < cnt; i++) { // libusb_device_descriptor desc; // libusb_get_device_descriptor(devs[i], &desc); // if (desc.idVendor == 0xaa55 && desc.idProduct == 0x8866) { // if (current == nIndex) { // target = devs[i]; // break; // } // current++; // } // } // if (target) { // libusb_open(target, &devh); // } // libusb_free_device_list(devs, 1); } int TanhoAPI::TanhoCam_CloseDriver() { libusb_close(devh); libusb_exit(NULL); return 0; } unsigned char * TanhoAPI::TanhoCam_GetFrameData() { unsigned char imagedata[655360*3]; unsigned char buffer[16384]; if(devh) { int i=0; while (i<40*3) { libusb_bulk_transfer(devh,0x81, buffer, sizeof(buffer), &transferred_bytes,120 );//(设备句柄,端点地址 (IN方向), 数据缓冲区,缓冲区大小,实际传输字节数,超时时间) memcpy(imagedata+i*16384,buffer,16384); if(i>100) { i=0; for(int ftcnt=0;ftcnt<(655360+1024)*2;ftcnt++) { if((imagedata[ftcnt + 0] == 0x55) && (imagedata[ftcnt + 1] == 0xff)) { if((imagedata[ftcnt + 2] == 0xaa) && (imagedata[ftcnt + 3] == 0xcc) ) { memcpy(imagedata,imagedata+ftcnt+512,655360); break; } } } } i++; } } return imagedata; } int TanhoAPI::TanhoCam_ExecuteCmd(unsigned char data[32]) { return libusb_bulk_transfer(devh,0x01,data,sizeof(data),&transferred_bytes,120); } 有的啊