Get adapter status

I want to know as much information of a given adapter on the QNX system
and I need advise on how to get these information.
For ethernet adapters, I know I can get the IP address, netmask, mtu
size, status of up/down using IOCTL calls, what else ?
For ppp adapter, in addition to these information, I can parse some
information from /dev/socket/pppmgr.
Any idea what kind of information I can get for wireless cards? ( signal
strength, packet loss, packet receive… ? ).

In Linux, there is a value of “Link Status” for each adapter, is there
similar info in the QNX?
Other than checking the adapter flag UP/Down, is there anything else I
can check to
determine the presence of an adapter?

Thanks for any help.