// hidport.h

// CTL_CODE(0x000b, 0x007, METHOD_NEITHER, FILE_ANY_ACCESS)
#define IOCTL_HID_ACTIVATE_DEVICE 0x000B001F
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Windows Driver Kit DDI reference (ni-hidport-ioctl_hid_activate_device)

IOCTL_HID_ACTIVATE_DEVICE IOCTL

Description

The IOCTL_HID_ACTIVATE_DEVICE request activates a HIDClass device, which makes it ready for I/O operations.

For general information about HIDClass devices, see HID Collections.

Parameters

Major code

Input buffer

Parameters.DeviceIoControl.Type3InputBuffer contains a collection identifier, as a ULONG value, of the collection to activate.

Input buffer length

The length of a ULONG value.

Output buffer

None.

Output buffer length

None.

Input/output buffer

Input/output buffer length

Status block

HID minidrivers that carry out the I/O to the device set the following fields of Irp->IoStatus:

Information is set to zero.
Status is set to STATUS_SUCCESS if the transfer completed without error. Otherwise, it is set to an appropriate NTSTATUS error code.

Minidrivers that call other drivers with this IRP to carry out the I/O to their device should ensure that the Information field of the status block is zero and not change the contents of the Status field.

IOCTL_HID_ACTIVATE_DEVICE - NtDoc