BOOLEAN
CardSend(
  IN  PUBNEI_ADAPTER  pAdapter,
  IN  PNDIS_PACKET    pPacket,
  IN  UINT            PacketLength
  );

Routine Description:
    This routine checks the cards transmit ring buffer to see if
    a send can take place. If it can then it removes the buffer
    from the free transmit buffer ring buffer and places it on
    the to be transimitted ring buffer.


Arguments:

    pAdapt - pointer to the adapter block

Return Value:
    returns TRUE if it was able to copy the send data to the card

    FALSE indicates that there are no free transmit buffers currently