[Discuss-gnuradio] New sources, general questions

[David Carr]

Hello all,

I'm currently doing some SDR research and I'd like integrate some parts 
of my project with the GNU Radio base for mutual benefit.  I'm having 
some difficulty understanding the general model of the GNU Radio 
framework.  I like the source/sink architecture very much, it seems a 
very good way handle the data flow.  I however, haven't be able to 
resolve the differences between Gr and Vr type items.  What 
differentiates these?

Also, I'm using an NI AT-MIO-16E-1 aquisition card in a "capture server" 
that streams raw data in over a TCP connection.  I'd like to create a 
TCPSource in order to integrate this setup (and other TCP network 
sources) with the current framework.  I can do basic unix style netwok 
programming but what might I need to do as far as buffering is 
concerned?  My data source outputs 1.25M 16 bit samples per second, 
continuously. 

Lastly, what good "intro to the framework" documentation is out there 
that I might have missed?  I would like to become much more familiar 
with the goings on of GNU Radio.

Thanks for your time,
David Carr
Rice University