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# DRV_MIIM_DeregisterCallback Function

## C

    DRV_MIIM_RESULT DRV_MIIM_DeregisterCallback(DRV_HANDLE handle, DRV_MIIM_CALLBACK_HANDLE cbHandle);

## Returns

- DRV_MIIM_RES_OK if the operation succeeded.

- an error code otherwise

## Description

This function deregisters a previously registered client notification callback function.

## Remarks

There is only one notification callback function available per client. To register a new callback function use DRV_MIIM_DeregisterCallback first.

## Preconditions

- The DRV_MIIM_Initialize routine must have been called.

- DRV_MIIM_Open must have been called to obtain a valid opened device handle.