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# DRV_ETHPHY_RestartNegotiation Function

## C

    DRV_ETHPHY_RESULT DRV_ETHPHY_RestartNegotiation(DRV_HANDLE handle, DRV_ETHPHY_INTERFACE_INDEX portIndex);

## Returns

- DRV_ETHPHY_RES_PENDING operation has been scheduled successfully

- an DRV_ETHPHY_RESULT error code if the procedure failed.

## Description

This function restarts auto-negotiation of the Ethernet PHY link.

## Remarks

Use DRV_ETHPHY_ClientStatus() and DRV_ETHPHY_ClientOperationResult() to check when the operation was completed and its outcome.

## Preconditions

- The DRV_ETHPHY_Initialize routine must have been called.

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

- DRV_ETHPHY_Setup must have been called to properly configure the PHY