---
title: UserClearTaskSetRequest
framework: SCSIControllerDriverKit
role: symbol
role_heading: Instance Method
path: scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/usercleartasksetrequest
---

# UserClearTaskSetRequest

Aborts all tasks in a logical unit and clears their data.

## Declaration

```occ
virtual kern_return_t UserClearTaskSetRequest(uint64_t theT, uint64_t theL, uint32_t *response);
```

## Parameters

- `theT`: The target containing the tasks to clear.
- `theL`: The logical unit containing the tasks to clear.
- `response`: On return, a SCSI protocol-specific value indicating the success or failure of the request.

## Discussion

Discussion This method clears all pending and status data, but not previously established conditions, such as MODE SELECT parameters, reservations, and autocontingent allegiance (ACA) attributes.

## See Also

### Performing SCSI standard task management

- [UserAbortTaskRequest](scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/useraborttaskrequest.md)
- [UserAbortTaskSetRequest](scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/useraborttasksetrequest.md)
- [UserClearACARequest](scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/userclearacarequest.md)
- [UserLogicalUnitResetRequest](scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/userlogicalunitresetrequest.md)
- [UserTargetResetRequest](scsicontrollerdriverkit/iouserscsiparallelinterfacecontroller/usertargetresetrequest.md)