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Windows Driver Kit DDI reference (ni-gnssdriver-ioctl_gnss_send_drivercommand)

IOCTL_GNSS_SEND_DRIVERCOMMAND IOCTL

Description

The IOCTL_GNSS_SEND_DRIVERCOMMAND control code is used by the GNSS adapter to execute well-defined commands on the driver and also to set driver configuration parameters. Each call specifies a certain command type, and the associated data for the command (if one is applicable) through the GNSS_DRIVERCOMMAND_PARAM structure.

Parameters

Major code

Input buffer

A pointer to a GNSS_DRIVERCOMMAND_PARAM structure.

Input buffer length

Set to sizeof(GNSS_DRIVERCOMMAND_PARAM).

Output buffer

Set to NULL.

Output buffer length

Set to 0.

Input/output buffer

Input/output buffer length

Status block

Irp->IoStatus.Status is set to STATUS_SUCCESS if the request is successful. Otherwise, Status to the appropriate error condition as a NTSTATUS code.

Remarks

The driver sets one of the following NTSTATUS values to indicate the result.

STATUS_SUCCESS
Command Not Supported
Command Not Executed
Command Deferred
Command Failed

GNSS adapter notes

With the exception of a few commands, the GNSS adapter generally ignores any failures encountered in executing a specific command.

GNSS driver notes

If the GNSS driver does not support a specific command, it indicates so. Drivers are not required to support all commands defined in this protocol. The driver should complete the I/O only after finishing executing of the command.

IOCTL_GNSS_SEND_DRIVERCOMMAND - NtDoc