Patch - USRP2: Sync to PPS and Start RX Streaming At

A while back I mentioned I had a patch to implement
start_rx_streaming_at a
specified time. I had also implemented a host-side call to do the
sync_to_pps() command and the start_rx_streaming_at() command at the
same
time. The patch is now located at: http://drop.io/9eljrue for anyone to
look
at/use/etc.
Comments/criticisms/etc. welcome. I imagine the lifetime of usefulness
of
this patch will be limited, with the expected VRT transition of the
USRP2.
Doug