Pplib
From cchtml.com
The --pplib-cmd is a option of aticonfig utility.
The full list of supported commands:
# /usr/local/bin/aticonfig --pplib-cmd "get version"
PPLIB version is 1.4 and is active
# /usr/local/bin/aticonfig --pplib-cmd "get activity"
Current Activity is Core Clock: 915MHZ
Memory Clock: 1050MHZ
VDDC: 1175
Activity: 98 percent
Performance Level: 2
Bus Speed: 5000
Bus Lanes: 16
Maximum Bus Lanes: 16
# usr/local/bin/aticonfig --pplib-cmd "get fanspeed 0"
Fan speed query:
Query Index: 0, Speed in percent
Result: Fan Speed: 100%
# /usr/local/bin/aticonfig --pplib-cmd "get clock 0"
Engine Clock Range: 300-915 MHZ; Memory Clock Range: 300-1050 MHZ;
# /usr/local/bin/aticonfig --pplib-cmd "set fanspeed 0 95"
PPLIB command execution is Successful!