I am using, zephyr 1.6. When i tried to run any i2c sample code provided as part of 1.6 kernel, i noticed that i2c_write failed returning -5. (ie, -EIO - I/O Error).
Hardware: The tag on the board reads, C1000 Evaluation Kit.
I compile the code on ubuntu 16.04 using,
$ make BOARD=quark_se_c1000_devboard
compiler: the one comes part of the package issm_2016.1.057
Has anyone faced this issue?