I tried it, but it errors
"root@antMiner:/config# ./set_voltage 1 90
./set_voltage: line 1: //: Permission denied
./set_voltage: line 2: //: Permission denied
./set_voltage: line 3: //: Permission denied
./set_voltage: line 4: //: Permission denied
./set_voltage: line 5: //: Permission denied
./set_voltage: line 6: //: Permission denied
./set_voltage: line 28: static: not found
./set_voltage: line 29: static: not found
./set_voltage: line 30: static: not found
./set_voltage: line 31: static: not found
./set_voltage: line 32: static: not found
./set_voltage: line 33: static: not found
./set_voltage: line 34: static: not found
./set_voltage: line 35: pthread_mutex_t: not found
./set_voltage: line 36: pthread_mutex_t: not found
./set_voltage: line 40: syntax error: unexpected "("
root@antMiner:/config# root@antMiner:/config# ./set_voltage 1 90
./set_voltage: line 35: pthread_mutex_t: not found
./set_voltage: line 36: pthread_mutex_t: not found
./set_voltage: line 40: syntax error: unexpected "("

Do I need reboot my L3+?