On Sun, Oct 24, 2010 at 9:16 AM, Jamie Faris <[email protected]> wrote: > Comments below... > > On Sun, Oct 24, 2010 at 3:32 AM, Paul Boniol <[email protected]> wrote: > ... >> >> BYTE btNumBytesReceived : 3; >> BYTE btReserved1 : 5; >> >> These lines appear to be the reverse of the order I'm seeing the data >> in. Of course they could have accidentally reversed the lines when >> writing it up. >> > > This is a bit field in C: > > http://en.wikipedia.org/wiki/C_syntax#Bit_fields > > The reversed order you are seeing is probably due to endianness > issues. Really experimentation the best way to figure out exactly how > a compiler orders bit fields on a specific platform. > > HTH, > > Jamie
Thanks! I thought it was perhaps mapping bits, but from what I saw this means I'm getting one extra byte from what is documented for each packet... This "quick" project has taken more of my time than I would have ever anticipated, all to "possibly survey students who came to the office". I'll let it run with the code I wrote and see how it works. Paul -- You received this message because you are subscribed to the Google Groups "NLUG" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nlug-talk?hl=en
