// hidclass.h

// CTL_CODE(0x000b, 0x066, METHOD_BUFFERED, FILE_ANY_ACCESS)
#define IOCTL_HID_GET_POLL_FREQUENCY_MSEC 0x000B0198
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Windows Driver Kit DDI reference (ni-hidclass-ioctl_hid_get_poll_frequency_msec)

IOCTL_HID_GET_POLL_FREQUENCY_MSEC IOCTL

Description

The IOCTL_HID_GET_POLL_FREQUENCY_MSEC request obtains the current polling frequency, in milliseconds, of a top-level collection.

For general information about HIDClass devices, see HID Collections.

Parameters

Major code

Input buffer

Parameters.DeviceIoControl.OutputBufferLength in the I/O stack location of the IRP indicates the size, in bytes, of the output buffer, which must be >= sizeof(ULONG).

Input buffer length

Greater than or equal to sizeof(ULONG).

Output buffer

Irp->AssociatedIrp.SystemBuffer points to a buffer that will receive the polling frequency.

Output buffer length

Input/output buffer

Input/output buffer length

Status block

The HID class driver sets the following fields of Irp->IoStatus:

Information is set to sizeof(ULONG) if the polling frequency is successfully retrieved.
Status is set to STATUS_SUCCESS if the transfer completed without error. Otherwise, it is set to an appropriate NTSTATUS error code.

IOCTL_HID_GET_POLL_FREQUENCY_MSEC - NtDoc