forked from Imagelibrary/rtems
* libi2c/libi2c.c, libi2c/libi2c.h, libi2c/README_libi2c: Added checks so that use of 'stdio' is avoided (falling back to 'printk') before the system is up. Publish driver entry points so that the libi2c driver could be added to the applications 'device driver table'. This is not fully implemented yet, though, since in addition to initializing libi2c the low-level i2c bus drivers as well as high-level i2c device drivers need to be registered with the library. Updated README_libi2c accordingly.