|char * * dataPtrPtr|
This function is used to get a Zero Copy Buffer. This buffer can then be used with tfZeroCopySend() and tfZeroCopySendTo() for zero copy send functions. This is a TRUE zero copy if the device driver supports DMA sending.
- The size of the buffer to be used for the zero copy.
- Pointer to a pointer that is the beginning of the user's data area. This is where the user can store the data to be sent.
- Valid (ttUserMessage) pointer
- Failure. Insufficient memory to complete the operation or (*dataPtrPtr) was invalid.