---
title: START_STOP_UNIT
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsireducedblockcommandsdevice/1473222-start_stop_unit
---

# START_STOP_UNIT

## Declaration

```occ
virtual bool START_STOP_UNIT(SCSITaskIdentifier request, SCSICmdField1Bit IMMED, SCSICmdField4Bit POWER_CONDITIONS, SCSICmdField1Bit LEOJ, SCSICmdField1Bit START);
```