Return list of transmitted buffers for recycling. Transmit buffers
must not be changed or unallocated until they have recycled. After
issuing a transmit command, wait for a transmit complete interrupt.
When a transmit complete interrupt is received, read the transmitted
buffers. Do not plan on getting one buffer per interrupt. Some
NICs and UNDIs may transmit multiple buffers per interrupt.
Return list of transmitted buffers for recycling. Transmit buffers must not be changed or unallocated until they have recycled. After issuing a transmit command, wait for a transmit complete interrupt. When a transmit complete interrupt is received, read the transmitted buffers. Do not plan on getting one buffer per interrupt. Some NICs and UNDIs may transmit multiple buffers per interrupt.