PTERMINATE_IEEE_MODE callback function (parallel.h)

Article
02/22/2024

The PTERMINATE_IEEE_MODE-typed callback routine terminates the current IEEE operating mode and sets the mode to IEEE 1284-compatible. The system-supplied bus driver for parallel ports supplies this routine.

Syntax

PTERMINATE_IEEE_MODE PterminateIeeeMode;

NTSTATUS PterminateIeeeMode(
  [in] PVOID Context
)
{...}

Parameters

[in] Context

Pointer to the device extension of a parallel device's physical device object (PDO).

Return value

Return code	Description
STATUS_SUCCESS	The operating mode was set to IEEE 1284-compatible mode.

Remarks

To obtain a pointer to the system-supplied PTERMINATE_IEEE_MODE callback, a kernel-mode driver uses an IOCTL_INTERNAL_PARCLASS_CONNECT request, which returns a PARCLASS_INFORMATION structure. The TerminateIeeeMode member of the PARCLASS_INFORMATION structure is a pointer to this callback.

The PTERMINATE_IEEE_MODE callback runs in the caller's thread at the IRQL of the caller.

For more information, see Setting and Clearing a Communication Mode for a Parallel Device.

Requirements

Requirement	Value
Target Platform	Desktop
Header	parallel.h (include Parallel.h)

Share via