---
title: kUSBDeviceNumConfigs
framework: IOKit
role: symbol
role_heading: Macro
platforms: [Mac Catalyst 13.0+, macOS 10.0+]
path: iokit/kusbdevicenumconfigs
---

# kUSBDeviceNumConfigs

## Declaration

```occ
#define kUSBDeviceNumConfigs
```

## Discussion

The field in the USB Configuration Descriptor corresponding to the number of configurations