---
title: kSBCCmd_UPDATE_BLOCK
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [driverkit 22.0+, macOS 10.12+]
path: kernel/1643400-anonymous/ksbccmd_update_block
---

# kSBCCmd_UPDATE_BLOCK

## Declaration

```occ
kSBCCmd_UPDATE_BLOCK = 0x3D
```