---
title: IOUSBHostIOSource
framework: kernel
role: symbol
role_heading: Class
path: kernel/iousbhostiosource
---

# IOUSBHostIOSource

## Declaration

```occ
class IOUSBHostIOSource : OSObject
```

## Topics

### Instance Methods

- [abort](kernel/iousbhostiosource/1520591-abort.md)
- [abortGated](kernel/iousbhostiosource/1520583-abortgated.md)
- [adjustOutstandingIO](kernel/iousbhostiosource/2882021-adjustoutstandingio.md)
- [close](kernel/iousbhostiosource/1520569-close.md)
- [closeGated](kernel/iousbhostiosource/1520604-closegated.md)
- [destroy](kernel/iousbhostiosource/1520575-destroy.md)
- [destroyGated](kernel/iousbhostiosource/1520619-destroygated.md)
- [free](kernel/iousbhostiosource/1520562-free.md)
- [getDevice](kernel/iousbhostiosource/3736275-getdevice.md)
- [getMetaClass](kernel/iousbhostiosource/1520616-getmetaclass.md)
- [getOutstandingIO](kernel/iousbhostiosource/2882015-getoutstandingio.md)
- [getState](kernel/iousbhostiosource/1520594-getstate.md)
- [getStateGated](kernel/iousbhostiosource/1520597-getstategated.md)
- [initWithOwners](kernel/iousbhostiosource/1520600-initwithowners.md)
- [io](kernel/iousbhostiosource/1520589-io.md)
- [io](kernel/iousbhostiosource/3516797-io.md)
- [io](kernel/iousbhostiosource/3516798-io.md)
- [ioBundledGated](kernel/iousbhostiosource/3230708-iobundledgated.md)
- [ioGated](kernel/iousbhostiosource/1520602-iogated.md)
- [open](kernel/iousbhostiosource/1520584-open.md)
- [openGated](kernel/iousbhostiosource/1520579-opengated.md)
- [synchronousCompletion](kernel/iousbhostiosource/1520588-synchronouscompletion.md)
- [synchronousIsochronousCompletion](kernel/iousbhostiosource/1520613-synchronousisochronouscompletion.md)
- [timerCompletion](kernel/iousbhostiosource/1520586-timercompletion.md)

## Relationships

### Inherits From

- [OSObject](kernel/osobject.md)

## See Also

### IOKit

- [IOUSBDevice](kernel/iousbdevice.md)
- [IOUSBInterface](kernel/iousbinterface.md)
- [IOOFPathMatching](kernel/1575304-ioofpathmatching.md)
- [IOUSBHostInterface](kernel/iousbhostinterface.md)
- [IOUSBHostDevice](kernel/iousbhostdevice.md)
- [IOUSBHostPipe](kernel/iousbhostpipe.md)
- [IOUSBHostStream](kernel/iousbhoststream.md)
- [IOHIDEventDriver](kernel/iohideventdriver.md)
- [IOHIDEventService](kernel/iohideventservice.md)
- [IOHIDInterface](kernel/iohidinterface.md)
- [IOHIDSystem](kernel/iohidsystem.md)
- [IOHIKeyboardMapper](kernel/iohikeyboardmapper.md)
- [IOHIKeyboard](kernel/iohikeyboard.md)
- [IOHIPointing](kernel/iohipointing.md)
- [IOHIDevice](kernel/iohidevice.md)
- [IOHIDElement](kernel/iohidelement.md)
- [IOHIDWorkLoop](kernel/iohidworkloop.md)
- [IOEthernetInterface](kernel/ioethernetinterface.md)
- [IOEthernetController](kernel/ioethernetcontroller.md)