---
title: USBNotificationTypes
framework: kernel
role: symbol
role_heading: Type Alias
path: kernel/usbnotificationtypes
---

# USBNotificationTypes

Defines types of USB notifications.

## Declaration

```occ
typedef enum USBNotificationTypes USBNotificationTypes;
```

## Discussion

Discussion Use this enumeration to register for USB notifications. You can OR these types together if you need more than one notification. Acknowledge each notification before the process (system sleep or system wake) continues. See RegisterForNotification and AcknowledgeNotification for more information.

## Topics

### Constants

- [kUSBNotificationPreForcedSuspend](kernel/usbnotificationtypes/kusbnotificationpreforcedsuspend.md)
- [kUSBNotificationPostForcedSuspend](kernel/usbnotificationtypes/kusbnotificationpostforcedsuspend.md)
- [kUSBNotificationPreForcedResume](kernel/usbnotificationtypes/kusbnotificationpreforcedresume.md)
- [kUSBNotificationPostForcedResume](kernel/usbnotificationtypes/kusbnotificationpostforcedresume.md)

## See Also

### USB Types

- [tIOUSB20BusCurrent](kernel/tiousb20buscurrent.md)
- [tIOUSB30BusCurrent](kernel/tiousb30buscurrent.md)
- [tIOUSB30DeviceNotificationType](kernel/tiousb30devicenotificationtype.md)
- [tIOUSB30HubExtStatus](kernel/tiousb30hubextstatus.md)
- [tIOUSB30HubPortStatusCode](kernel/tiousb30hubportstatuscode.md)
- [tIOUSB30LinkStateTimeout](kernel/tiousb30linkstatetimeout.md)
- [tIOUSB30ResetTimeout](kernel/tiousb30resettimeout.md)
- [tIOUSB30TimingParameters](kernel/tiousb30timingparameters.md)
- [tIOUSBBusVoltage](kernel/tiousbbusvoltage.md)
- [tIOUSBDeviceCapabilityType](kernel/tiousbdevicecapabilitytype.md)
- [tIOUSBDeviceRequest](kernel/tiousbdevicerequest.md)
- [tIOUSBDeviceRequestDirectionValue](kernel/tiousbdevicerequestdirectionvalue.md)
- [tIOUSBDeviceRequestRecipientValue](kernel/tiousbdevicerequestrecipientvalue.md)
- [tIOUSBDeviceRequestTypeValue](kernel/tiousbdevicerequesttypevalue.md)
- [tIOUSBEndpointDirection](kernel/tiousbendpointdirection.md)
- [tIOUSBEndpointSynchronizationType](kernel/tiousbendpointsynchronizationtype.md)
- [tIOUSBEndpointType](kernel/tiousbendpointtype.md)
- [tIOUSBEndpointUsageType](kernel/tiousbendpointusagetype.md)
- [tIOUSBHostConnectionSpeed](kernel/tiousbhostconnectionspeed.md)
- [tIOUSBHostPortStatus](kernel/tiousbhostportstatus.md)
- [tIOUSBHostPortType](kernel/tiousbhostporttype.md)
- [tIOUSBLanguageID](kernel/tiousblanguageid.md)
- [tInternalUSBHostConnectionSpeed](kernel/tinternalusbhostconnectionspeed.md)
- [tUSBHostConnectionSpeed](kernel/tusbhostconnectionspeed.md)
- [tUSBHostDeviceAddress](kernel/tusbhostdeviceaddress.md)
- [tUSBHostPortStatus](kernel/tusbhostportstatus.md)
- [tUSBHostPortType](kernel/tusbhostporttype.md)
- [IOUSBGetFrameStruct](kernel/iousbgetframestruct.md)
- [IOUSBHostIOSourceClientRecord](kernel/iousbhostiosourceclientrecord.md)
- [IOUSBIsocFrame](kernel/iousbisocframe.md)
- [IOUSBIsocStruct](kernel/iousbisocstruct.md)
- [IOUSBLowLatencyIsocFrame](kernel/iousblowlatencyisocframe.md)
- [IOUSBLowLatencyIsocStruct](kernel/iousblowlatencyisocstruct.md)
- [IOUSBKeyboardData](kernel/iousbkeyboarddata.md)
- [IOUSBKeyboardDataPtr](kernel/iousbkeyboarddataptr.md)
- [IOUSBMouseData](kernel/iousbmousedata.md)
- [IOUSBMouseDataPtr](kernel/iousbmousedataptr.md)
- [IOUSBMatch](kernel/iousbmatch.md)
- [USBClassSpecificDesc](kernel/usbclassspecificdesc.md)
- [USBDeviceAddress](kernel/usbdeviceaddress.md)
- [USBDeviceInformationBits](kernel/usbdeviceinformationbits.md)
- [USBHubClassRequest](kernel/usbhubclassrequest.md)
- [USBLowLatencyBufferType](kernel/usblowlatencybuffertype.md)
- [USBPhysicalAddress32](kernel/usbphysicaladdress32.md)
- [USBPowerRequestTypes](kernel/usbpowerrequesttypes.md)
- [USBReEnumerateOptions](kernel/usbreenumerateoptions.md)
- [USBStatus](kernel/usbstatus.md)
- [USBStatusPtr](kernel/usbstatusptr.md)