---
title: kSCSIProtocolFeature_ProtocolSpecificPowerControl
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.12+]
path: kernel/1638592-anonymous/kscsiprotocolfeature_protocolspecificpowercontrol
---

# kSCSIProtocolFeature_ProtocolSpecificPowerControl

## Declaration

```occ
kSCSIProtocolFeature_ProtocolSpecificPowerControl = 13
```

## Discussion

Discussion Used to determine if the SCSI Protocol Services Driver supports switching the power to the drive on and off. This is used for aggressive power management, specifically for SATAPI devices on AHCI buses.