---
title: kIOUSBEndpointSynchronizationTypeAsynchronous
framework: kernel
role: symbol
role_heading: Enumeration Case
path: kernel/tiousbendpointsynchronizationtype/kiousbendpointsynchronizationtypeasynchronous
---

# kIOUSBEndpointSynchronizationTypeAsynchronous

The asynchronous type.

## Declaration

```occ
kIOUSBEndpointSynchronizationTypeAsynchronous = (kIOUSBEndpointDescriptorSynchronizationTypeAsynchronous >> kIOUSBEndpointDescriptorSynchronizationTypePhase)
```