IoCallDriver assigns the DeviceObject input parameter to the DeviceObject member of the IO_STACK_LOCATION structure for the driver being called. An IRP passed in a call to IoCallDriver becomes inaccessible to the higher-level driver, unless the higher-level driver has called IoSetCompletionRoutine...
For example, if a driver updates the target processor of a DPC while a timer enables the DPC to run, the DPC might run on an arbitrary processor.A periodic timer automatically restarts as soon as it expires. Therefore, in a multiprocessor system, the DPC for a periodic timer might be ...
allocates an extension for theDriverObject, and stores various values in the driver object's extension. Values that must be stored in the driver object's extension include the size of the driver extension and a pointer to a controller minidriverHwIdeXGetControllerPropertiesroutine that retrieves ...
The IoAllocateIrp routine allocates an IRP, given the number of I/O stack locations for each driver layered under the caller, and, optionally, for the caller.
LibDriver AHT20 As a new generation of temperature and humidity sensors, AHT20 sets a new standard in terms of size and performance: a two-row flat pin less SMD package suitable for reflow soldering, bottom face 3x3mm, height 1.0mm.The sensor outputs calibrated digital signals in standard II...
Drivers can define driver-specific header and record fields in the diagnostic data structure. An ODBC 3*.x* application working with an ODBC 2*.x* driver will be able to callSQLGetDiagFieldonly with aDiagIdentifierargument of SQL_DIAG_CLASS_ORIGIN, SQL_DIAG_CLASS_SUBCLASS_ORIGIN, SQL_DIAG_...
To install a scan driver, follow these steps: note: Make sure to download the latest scan driver. To download the latest drivers and software, go to Software and Drivers, type your printer model in the text box, and then click the Driver tab to view the latest driver. Download the ...
The 8-bit logical inverse of the address. The 8-bit command. The 8-bit logical inverse of the command. A final 562.5μs pulse burst to signify the end of message transmission. LibDriver IR_REMOTE is the full function driver of ir_remote launched by LibDriver. It provides NEC IR remote...
The interface instances would be registered but are not usable until they are enabled by the driver (using IoSetDeviceInterfaceState). To narrow the list of interface instances returned to only those exposed by a given device, a driver can specify a PhysicalDeviceObject. [out] SymbolicLinkList ...
The DrvEscape function is used for retrieving information from a device that is not available in a device-independent device driver interface; the particular query depends on the value of the iEsc parameter. Syntax C++ Copy ULONG DrvEscape( [in] SURFOBJ *pso, [in] ULONG iEsc, [in] ULONG ...