void DVS128Interface::startReading(){
CUsbIo dev;
USB_DEVICE_DESCRIPTOR devDesc;
DWORD status;
bool found = false;
devList = CUsbIo::CreateDeviceList(&usbIoID);
if (devList == NULL){
printf("Unable to build a device list!\n");
}
// Open and query usb devices to find the right one
for (int i = 0; i < 127; i++){
status = dev.Open(i,devList,&usbIoID);
if ( status != USBIO_ERR_SUCCESS ) {
if ( status != USBIO_ERR_NO_SUCH_DEVICE_INSTANCE ){
fprintf(stdout,"UsbDev.Open returned with error 0x%08X\n",status);
}
break;
}
// Query device descriptor for comparison with PID and VID
status = dev.GetDeviceDescriptor(&devDesc);
if ( status == USBIO_ERR_SUCCESS ){
found = true;
if ( devDesc.iSerialNumber!=0 ){
dev.Close();
if (devDesc.idVendor == VID && devDesc.idProduct == PID){
fprintf(stdout,"Device found, starting reader.\n");
devIndex = i;
startReaderThread(devIndex);
break;
} else {
fprintf(stdout,"Device not recognized\n");
}
} else {
fprintf(stdout,"Querying device descriptor failed, status:0x%08X\n",status);
dev.Close();
}
}
if ( !found ) {
fprintf(stdout,"There are no USB devices attached to the USBIO driver.\n");
}
else
fprintf(stdout,"Device found...");
CUsbIo::DestroyDeviceList(devList);
}
}
static void GetDeviceDescriptor()
{
USB_DEVICE_DESCRIPTOR DeviceDescriptor;
memset(&DeviceDescriptor, 0, sizeof(USB_DEVICE_DESCRIPTOR));
// Get device descriptor
dwRC = g_UsbDev.GetDeviceDescriptor(&DeviceDescriptor);
PRINT_IF_VERBOSE1("CUsbIo::GetDeviceDescriptor returned <0x%X>\n", dwRC);
if (VerboseMode && (dwRC == USBIO_ERR_SUCCESS))
{
printf("\nDEVICE DESCRIPTOR:\n"
"bLength = <%u>\n"
"bDescriptorType = <%u>\n"
"bcdUSB = <%u>\n"
"bDeviceClass = <%u>\n"
"bDeviceSubClass = <%u>\n"
"bDeviceProtocol = <%u>\n"
"bMaxPacketSize0 = <%u>\n"
"idVendor = <%u>\n"
"idProduct = <%u>\n"
"bcdDevice = <%u>\n"
"iManufacturer = <%u>\n"
"iProduct = <%u>\n"
"iSerialNumber = <%u>\n"
"bNumConfigurations = <%u>\n\n",
DeviceDescriptor.bLength,
DeviceDescriptor.bDescriptorType,
DeviceDescriptor.bcdUSB,
DeviceDescriptor.bDeviceClass,
DeviceDescriptor.bDeviceSubClass,
DeviceDescriptor.bDeviceProtocol,
DeviceDescriptor.bMaxPacketSize0,
DeviceDescriptor.idVendor,
DeviceDescriptor.idProduct,
DeviceDescriptor.bcdDevice,
DeviceDescriptor.iManufacturer,
DeviceDescriptor.iProduct,
DeviceDescriptor.iSerialNumber,
DeviceDescriptor.bNumConfigurations);
}
}
