umad_register_oui()
registers the specified class in vendor range 2, the specified
oui,
and whether RMPP is being used for the port specified by the
portid
handle. If
method_mask
array is provided, the caller is registered as a replier (server) for the
methods having their corresponding bit on in the
method_mask.
If
method_mask
is NULL, the caller is registered as a MAD client, meaning that it can
only receive replies on MADs that it sent (solicited MADs).
RETURN VALUE
umad_register()
returns non-negative agent id number on success, and a negative value on error as follows:
-EINVAL invalid port handle or class is not in the vendor class 2 range
-EPERM registration failed