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

# kSCSIProtocolFeature_ProtocolSpecificPowerOff

## Declaration

```occ
kSCSIProtocolFeature_ProtocolSpecificPowerOff = 12
```

## Discussion

Discussion If the SCSI Protocol Services Driver supports removing the power to the drive, then the protocol layer should return true. This is used for aggressive power management, specifically for ATAPI devices on ATA buses.