The OSPI connected to the sprinkler is running wheezy. I am using Occidentalis on another Pi. but that RPi isn’t connected to the OSPi board. I’ll try and check it out tomorrow and see if it works okay.
The wheezy kernel did fine using your instructions. The glitch was not observing the integer 1 in the following instructions for the 512 RPi board:
echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-1/new_device
As soon as I get a chance I’ll try the Occidentalis with the OSPi board.