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Hellow everyone! I'm new to develop UART driver with UMDF2. And i met a problem.
While I get the IOCTL_SERIAL_SET_BAUD_RATE message , i can't find any way to deal with it.
As shown below,it always return STATUS_WAIT_1
//Init memory WDF_MEMORY_DESCRIPTOR_INIT_BUFFER(&memoryDescriptor, (PVOID)&modemInfo, sizeof(MODEM_INFO)); // setup the send option WDF_REQUEST_SEND_OPTIONS_INIT(&sendOptions, WDF_REQUEST_SEND_OPTION_TIMEOUT); WDF_REQUEST_SEND_OPTIONS_SET_TIMEOUT(&sendOptions, DEFAULT_CONTROL_TRANSFER_TIMEOUT); status = WdfUsbTargetDeviceSendControlTransferSynchronously( pDeviceContext->UsbDevice, WDF_NO_HANDLE, &sendOptions, &setupPacket, &memoryDescriptor, NULL);
In which way i can pass the message to the usb stack?
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