// pointofservicedriverinterface.h

// CTL_CODE(0x0054, 0x006, METHOD_BUFFERED, FILE_READ_ACCESS)
#define IOCTL_POINT_OF_SERVICE_RETRIEVE_STATISTICS 0x00544018
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Windows Driver Kit DDI reference (ni-pointofservicedriverinterface-ioctl_point_of_service_retrieve_statistics)

IOCTL_POINT_OF_SERVICE_RETRIEVE_STATISTICS IOCTL

Description

This I/O control function returns unified point of service (UPOS) standard information about a device such as its category, manufacturer, and firmware revision number.

Parameters

Major code

Input buffer

[in] Not used with this operation; set to NULL.

Input buffer length

Not used with this operation; set to 0 (zero).

Output buffer

Pointer to the PosStatisticsHeader structure that contains the statistics.

Output buffer length

Size of the output buffer in bytes. Set to sizeof(PosStatisticsHeader).

Input/output buffer

Input/output buffer length

Status block

Returns TRUE if successful; otherwise, returns FALSE.

Remarks

To get extended error information, call GetLastError. The following list shows common error values:

STATUS_BUFFER_OVERFLOW: The output buffer is not large enough to hold the statistics.
STATUS_NOT_SUPPORTED: Statistic reporting is not supported.

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