A set of useful additions for the DL2: A dynamic DNS client, and
a utility to read and write values to VBUS (protocol V2) devices.

The vbusv2 script can be run on any machine that has a Ruby interpreter.
It can communicate with your vbus via the DL2 by running the script with the
--hostname='dl2_ip' option.
(It should also work with the VBus/LAN although I have not tested it.)

The directions below assume you are going to install and run the scripts
on the DL2 itself.

First, ask RESOL for a development key for your DL2. Once you have
installed the key, you will be able to log into the dl2 with ssh. 

Put an entry like this in your .ssh/config on your development host:

Host dl2
Hostname example.no-ip.org
user root

Then edit config.example and save it as config

Then you can invoke the upall script in this directory to copy the
files from this directory to the appropriate places on the dl2. You
will have to type your dl2 root password twice. Note that the standard
filesystem in the dl2 is volatile, so in order for the added files to
survive a reboot, they must be placed in nonvolatile storage, i.e.,
/mnt/nand. On reboot, init invokes dl2postinit.sh which copies the
files to their appropriate places and initializes crontab with the 
entries in root/cronspecs.

vbusv2.rb is a script for monitoring VBUS V2 protocol packets and
getting and setting parameter values of vbus controllers. A few
mnemonic symbols are defined for the BSplus controller, otherwise you
can just supply the hexadecimal index for the parameter you're
interested in. Execute vbusv2.rb --help for more information. If your
controller is not a BS plus you'll need to use the --destination
option to provide the target id for your controller.

By default the vbus script runs on the DL2, where it can be invoked by 
cron to reset controller parameters at different times of the day. It can
also be run on another machine using the --hostname='dl2_ip' option.

Example use:

./vbusv2.rb -m        
   # continuously monitors V2 traffic on the vbus.
   # Use this while running RSC to see what it does.
./vbusv2.rb SMX
   # reads the value of SMX from the controller and prints it out
./vbusv2.rb SMX 1800
   # sets the SMX paramater of the controller to 1800. Note that
   # the script does not do scaling of the values. You have to enter
   # the values in the native machine format. Here, the parameter is
   # is in tenths of a degree, so setting it to 1800 sets it to 180 degrees.
   

FILES:
.gitignore
License.txt
README
upall
nand/dl2/sbin/dl2postinit.sh
nand/root/config.example
nand/root/cronspecs
nand/root/no-ip.sh
nand/root/vbusutil.rb
nand/root/vbusv2.rb