BOOLEAN
TOK162AcquireTransmitBlock(
  IN  PTOK162_ADAPTER Adapter,
  OUT PTOK162_SUPER_COMMAND_BLOCK * CommandBlock
  );

Routine Description:

    Sees if a Transmit Block is available and if so returns its index.

Arguments:

    Adapter      - The adapter that has the transmit queue

    CommandBlock - Will receive a pointer to a Command Block if one is
                   available.

Return Value:

    Returns FALSE if there are no free Command Blocks.