$ bfgminer -S opencl:auto -n
[2017-07-31 00:44:09] CL Platform 0 vendor: Apple
[2017-07-31 00:44:09] CL Platform 0 name: Apple
[2017-07-31 00:44:09] CL Platform 0 version: OpenCL 1.2 (May 26 2017 12:59:48)
[2017-07-31 00:44:09] Platform 0 devices: 1
[2017-07-31 00:44:09] 0 GeForce GT 755M
[2017-07-31 00:44:09] Unable to load ati adl library
[2017-07-31 00:44:09] 1 GPU devices max detected
Command: