OID_IRDA_UNICAST_LIST
The OID_IRDA_UNICAST_LIST OID is optional for most IrDA miniport drivers. Only Windows 95/98/Me IrDA miniport drivers that maintain a UNICAST list must support this OID.
This OID requests that the miniport driver set or retrieve information in a UNICAST list. A UNICAST list is a list of the miniport driver's devices from which the miniport driver accepts frames. If the miniport driver does not support UNICAST filtering in hardware, it should not support this OID; IrLAP then performs the filtering.
For a set, this OID requests that the miniport driver only accept frames from addresses of devices in the specified UNICAST list.
For a query, this OID requests that the miniport driver return its current list of devices from which to accept frames.
If the UNICAST list is not set or contains zero elements, the miniport driver must accept all valid infrared frames. Because the size of an IrLAP media address is 7 bits, the least significant 7 bits of each item in the UNICAST list specifies the address of a device. All other bits are set to zero. If IrLAP attempts to set one or more items in the UNICAST list to values greater than 0x7f, the miniport driver must not use any values in the UNICAST list.