---
title: tIOUSBEndpointDirection
framework: IOKit
role: symbol
role_heading: Enumeration
platforms: [Mac Catalyst 13.0+, macOS 10.15+]
path: iokit/tiousbendpointdirection
---

# tIOUSBEndpointDirection

## Declaration

```occ
typedef enum tIOUSBEndpointDirection : unsigned int {
    ...
} tIOUSBEndpointDirection;
```

## Topics

### Constants

- [kIOUSBEndpointDirectionIn](iokit/tiousbendpointdirection/kiousbendpointdirectionin.md)
- [kIOUSBEndpointDirectionOut](iokit/tiousbendpointdirection/kiousbendpointdirectionout.md)
- [kIOUSBEndpointDirectionUnknown](iokit/tiousbendpointdirection/kiousbendpointdirectionunknown.md)