UsbCcidDevice* context = GetDeviceContext(device); context->m_Device = device;
The process umdfhost.exe or WUDFHost.exe may spike. microsoft usbccid smartcard reader -umdf 2- driver
return SendCcidCommand(&powerOnCmd, sizeof(powerOnCmd), Atr, AtrLength); UsbCcidDevice* context = GetDeviceContext(device)
The is a critical Windows driver that allows your computer to communicate with USB-based smart card readers. Built on the User-Mode Driver Framework (UMDF version 2) , it provides a stable and secure environment for sensitive tasks like digital signatures, encryption, and secure authentication. m_Device = device
void UsbCcidDevice::EvtIoDeviceControl(WDFQUEUE Queue, WDFREQUEST Request, size_t OutputBufferLength, size_t InputBufferLength, ULONG IoControlCode) WDFDEVICE device = WdfIoQueueGetDevice(Queue); UsbCcidDevice* context = GetDeviceContext(device); NTSTATUS status = STATUS_NOT_SUPPORTED;