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##

# TCPIP_IPV6_TxIsPutReady Function

## C

    unsigned short TCPIP_IPV6_TxIsPutReady(
        IPV6_PACKET * pkt,
        unsigned short count
    );

## Description

This function determines whether a TX packet can be written to. This function will allocate additional space to the packet to accommodate the user.

## Preconditions

TCPIP_IPV6_Initialize() is required. TCPIP_IPV6_InterfaceIsReady should be true.

## Parameters

Parameters | Description
--- | ---
ptrPacket | The packet to check.
count | The amount of writable space to check for.

## Returns

- The amount of space available - On success.
- 0 - On failure.

## Remarks

None.