hi
i install in antminer s3 software bfgminer
https://gitlab.com/bitcoin/bfgminer/blob/bfgminer/README.OpenWrt

when i login in antminer s3
ssh -vv root@192.168.1.99 -p 22

and run

bfgminer -o stratum.f2pool.com:3333 -u user -p pass

software tell
NO DEVICES FOUND: Press 'M' and '+' to add
how to find antminer s3 device in bfgminer ?
please tell me the command