IOCTL_GNSS_STOP_FIXSESSION IOCTL (gnssdriver.h)
The IOCTL_GNSS_STOP_FIXSESSION control code is used by the GNSS adapter to stop an active fix session.
Major code
Input buffer
A pointer to a GNSS_STOPFIXSESSION_PARAM structure.
Input buffer length
Set to sizeof(GNSS_STOPFIXSESSION_PARAM).
Output buffer
Set to NULL.
Output buffer length
Set to 0.
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 an NTSTATUS value to indicate one of the following results.
- The fix session successfully stopped.
- The fix session is already stopped or is not active.
GNSS adapter notes
The GNSS adapter always issues a stop fix for every successful start fix. If multi-session support is not present, the GNSS adapter stops any active fix session of the same type before issuing a new start fix request.GNSS driver notes
The GNSS driver must cancel/stop all pending fix requests and then complete the I/O so that when this call returns, the adapter does not receive any fix data pertaining to the stopped session.If no other fix sessions are active, the GNSS driver should keep the GNSS engine in a cold state.
Requirements
| Requirement | Value |
|---|---|
| Header | gnssdriver.h |
See also
Creating IOCTL Requests in Drivers
WdfIoTargetSendInternalIoctlOthersSynchronously