Current measurement per 8.2.6 of the SRM

I have a C4 Beagleboard, running Slackware 13.1. i2c-tools is
installed.

What i2cget command do I need to be able to read this value, and what
resolution can be expected with an unmodified board?

Additionally, what modifications can be made to increase the
resolution?

Thanks,
John O.