1 This parameter allows the user to set the link (interface) power management.
2 There are 3 possible options:
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6 min_power Tell the controller to try to make the link use the
7 least possible power when possible. This may
8 sacrifice some performance due to increased latency
9 when coming out of lower power states.
11 max_performance Generally, this means no power management. Tell
12 the controller to have performance be a priority
13 over power management.
15 medium_power Tell the controller to enter a lower power state
16 when possible, but do not enter the lowest power
17 state, thus improving latency over min_power setting.