On Thu, Jun 07, 2007 at 12:12:45AM +0700, Darmawan Salihun wrote: > NTSTATUS MapMmio(PDEVICE_OBJECT pDO, PIRP pIrp) [..] > pDO - pointer to the device object of this driver. > pIrp - pointer to an I/O Request Packet. Uff. What's wrong with void * ? I guess it's not the Windows way. //Peter