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##

# 1.1.8.4.16 DRV_SPI_TRANSFER_HANDLE_INVALID Macro

## C

    #define DRV_SPI_TRANSFER_HANDLE_INVALID ((DRV_SPI_TRANSFER_HANDLE)(-1))

## Summary

Definition of an invalid transfer handle.

## Description

This is the definition of an invalid transfer handle. An invalid transfer handle is returned by DRV_SPI_WriteReadTransferAdd or DRV_SPI_WriteTransferAdd or DRV_SPI_ReadTransferAdd function if the buffer add request was not successful. It can happen due to invalid arguments or lack of space in the queue.

## Remarks

None