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AN3224 Datasheet(PDF) 24 Page - STMicroelectronics |
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AN3224 Datasheet(HTML) 24 Page - STMicroelectronics |
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24 / 49 page ![]() PR101-USB and MR101-USB reader detection AN3224 24/49 Doc ID 17559 Rev 2 FEUSB_GetScanListPara( 0, "FamilyName", sDeviceFamilyName ) ; FEUSB_GetScanListPara( 0, "Present", sDevicePresence ) ; /* convert receive data in hexa format */ sscanf((const char*)sDeviceSerialNumber, "%lx", &dwDeviceSerialNumber); /* Open Communciation with one FEIG USB device */ /* and get USB hanle for FEUSB functions */ iDeviceHandle = FEUSB_OpenDevice(dwDeviceSerialNumber); if (iDeviceHandle < 0) { /* Error : USB connection problem */ /* Close USB connection */ iErr = FEUSB_CloseDevice(iDeviceHandle); return 0; } /* Link FEIG USB device with FEISC functions */ /* and get USB hanle */ iFeiscHandle = FEISC_NewReader( iDeviceHandle ); if (iFeiscHandle < 0) { /* Error : USB connection problem */ /* Close USB connection */ iErr = FEISC_DeleteReader( iFeiscHandle ); return 0; } Else { /* USB connection OK */ /* iDeviceHandle is handle for FEUSB functions */ /* iFeiscHandle is handle for FEISC functions */ return 1; } } |
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