Method getUSBDeviceDescriptor

QKeyMapper/interception_worker.cpp:437–492

}

bool Interception_Worker::getUSBDeviceDescriptor(ushort vendor_id, ushort product_id, QString &iManufacturer, QString &iProduct)
{
    if (!s_libusb_available) {
        return false;
    }

    libusb_device_handle *handle;
    libusb_device *dev;
    struct libusb_device_descriptor dev_desc;
    char string[256];

    handle = libusb_open_device_with_vid_pid(NULL, vendor_id, product_id);
    if (handle == NULL) {
#ifdef DEBUG_LOGOUT_ON
        QString vendorIdStr = QString("0x%1").arg(QString::number(vendor_id, 16).toUpper(), 4, '0');
        QString productIdStr = QString("0x%1").arg(QString::number(product_id, 16).toUpper(), 4, '0');
        qDebug().nospace().noquote() << "[getUSBDeviceDescriptor] Failed to open USB device -> " << "VendorID = " << vendorIdStr << ", ProductID = " << productIdStr;
#endif
        return false;
    }

    dev = libusb_get_device(handle);
    int ret = libusb_get_device_descriptor(dev, &dev_desc);
    if (ret != LIBUSB_SUCCESS) {
#ifdef DEBUG_LOGOUT_ON
        qDebug() << "[getUSBDeviceDescriptor] Failed to get device descriptor :" << ret;
#endif
        libusb_close(handle);
        return false;
    }

    if (dev_desc.iManufacturer) {
        ret = libusb_get_string_descriptor_ascii(handle, dev_desc.iManufacturer, (unsigned char*)string, sizeof(string));
        if (ret > 0) {
            iManufacturer = QString::fromLatin1(string, ret);
        } else {
#ifdef DEBUG_LOGOUT_ON
            qDebug() << "[getUSBDeviceDescriptor] Failed to get iManufacturer string descriptor :" << ret;
#endif
        }
    }

    if (dev_desc.iProduct) {
        ret = libusb_get_string_descriptor_ascii(handle, dev_desc.iProduct, (unsigned char*)string, sizeof(string));
        if (ret > 0) {
            iProduct = QString::fromLatin1(string, ret);
        } else {
#ifdef DEBUG_LOGOUT_ON
            qDebug() << "[getUSBDeviceDescriptor] Failed to get iProduct string descriptor :" << ret;
#endif
        }
    }

    libusb_close(handle);
    return true;
}

QHash<QString, USBDeviceInfo> Interception_Worker::parseUSBIDs(const QString &filePath)