---
title: "StandardUSB::kDescriptorSizeBOS"
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 12.0+]
path: kernel/standardusb_tdescriptorsize/standardusb_kdescriptorsizebos
---

# StandardUSB::kDescriptorSizeBOS

## Declaration

```occ
StandardUSB::kDescriptorSizeBOS = kIOUSBDescriptorSizeBOS
```