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.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 Length
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.
|Header||hidport.h (include Hidport.h)|