---
title: kIOUSBSuperSpeedPlusDeviceCapabilitySublinkDirectionTx
framework: Kernel
role: symbol
role_heading: Enumeration Case
platforms: [macOS 10.15+]
path: kernel/3166384-anonymous/kiousbsuperspeedplusdevicecapabilitysublinkdirectiontx
---

# kIOUSBSuperSpeedPlusDeviceCapabilitySublinkDirectionTx

## Declaration

```occ
kIOUSBSuperSpeedPlusDeviceCapabilitySublinkDirectionTx = (1 << kIOUSBSuperSpeedPlusDeviceCapabilitySublinkDirectionPhase)
```