NTSTATUS MyCameraEvtCleanup(WDFDEVICE Device) { PMY_CAMERA pMyCamera = WdfDeviceGetExtension(Device); if (pMyCamera != NULL) { ExFreePoolWithTag(pMyCamera, 'MCAM'); } return STATUS_SUCCESS; }
// Store device context WdfDeviceSetExtension(device, pMyCamera);
pMyCamera->WdfDevice = device;
[Strings] ProviderName = "My Company" Camera.DeviceDesc = "My Camera Device" The driver code would involve interactions with the Windows Driver Kit (WDK) and likely the Windows Driver Framework (WDF). Here’s a simplified example:
// Unload - Driver unload routine VOID DriverUnload(WDFDRIVER Driver) { WDFDRIVER* wdfDriver = WdfDriverFromDriverObject(Driver); // Clean up here WdfObjectDelete(wdfDriver); } xhc camera driver windows 10
#include <ntifs.h> #include <wdf.h>
// Assume MyCamera is a struct holding your device extension typedef struct _MY_CAMERA { WDFDEVICE WdfDevice; // Other device-specific data } MY_CAMERA, *PMY_CAMERA; if (pMyCamera != NULL) { ExFreePoolWithTag(pMyCamera
// AddDevice - Called when the PnP manager sends an IRP_MN_START_DEVICE request NTSTATUS AddDevice(WDFDRIVER Driver, PWDFDEVICE_INIT DeviceInit) { WDFDEVICE device; PMY_CAMERA pMyCamera;