where is omap! Beagle Bone Black rev C [HMC5883L 3-axis digital compass help]

So I have been trying to interface a digital compass (Sainsmart 3-Axis Digital Compass IC HMC5883L). In order to do so I have been learning about I2C devices and using Derek Molloy’s [Beaglebone: An I2C tutorial - Interfacing to a BMA180 Accelerometer] tutorial. He came to a part where he went into /sys/devices/platform/omap from root. He did this to determine whether or not the device has been hooked up properly as I have been trying to do. Unfortunately, I don’t have an omap. Does anyone know why, or if I can get it from somewhere like github.

This is what shows up for me:

Look at “HMC5883L, C programming” on the Adafruit BBB forum