can't r get usb input data by QUsbEndpoint::interruptEndpoint about qtusb HOT 12 CLOSED

Thanks! but my usb device only support Interrupt transfer, I can't write() methods

thanks for you ! I can't get usb data! HidExample::HidExample(QObject *parent) : QObject(parent), m_hid_dev(new QHidDevice()) { m_send.append(static_cast<char>(0xF1u)); m_send.append(static_cast<char>(0x80u)); timer=new QTimer(); QObject::connect(timer, SIGNAL(timeout()), this, SLOT(getData())); timer->start(200); if (this->openDevice()) { qInfo("Device open!"); printf("Device open!"); this->write(&m_send); } else { qWarning("Could not open device!"); } } HidExample::~HidExample() { this->closeDevice(); m_hid_dev->deleteLater(); } bool HidExample::openDevice() { qDebug("Opening"); return m_hid_dev->open(0x5131,0x2007); } void HidExample::closeDevice() { qDebug("Closing"); if (m_hid_dev->isOpen()) { m_hid_dev->close(); } } QString HidExample::getData() { printf("===========open result========= "); QByteArray array; read(&array); printf("======array.count%d",array.count()); return "asd"; } void HidExample::read(QByteArray *buf) { QByteArray b(128, '0'); m_hid_dev->read(&b, b.size(),1); printf("Reading"); qDebug() << "Reading" << b << b.size(); buf->append(b); } void HidExample::write(QByteArray *buf) { qDebug() << "Writing" << *buf << buf->size(); if (m_hid_dev->write(buf, buf->size()) < 0) { qWarning("write failed"); } } Did you try? — You are receiving this because you modified the open/close state. Reply to this email directly, view it on GitHub, or unsubscribe.