Hello,
I'm trying to get access to the Custom Solutions Header from software under Linux. I'm currently using Lubuntu (Based on Ubuntu 14.04).
My main area of interest is the two I2C ports available on pins 13,14,15, and 16 of this header.
I've installed the I2C tools and enabled the "i2c-dev" module on bootup. I can see the following devices:
/dev/i2c-0
/dev/i2c-1
/dev/i2c-2
/dev/i2c-3
/dev/i2c-4
/dev/i2c-5
/dev/i2c-6
Running the command "i2cdetect -l" shows the following I2C buses:
i2c-0 i2c i915 gmbus ssc I2C adapter
i2c-1 i2c i915 gmbus vga I2C adapter
i2c-2 i2c i915 gmbus panel I2C adapter
i2c-3 i2c i915 gmbus dpc I2C adapter
i2c-4 i2c i915 gmbus dpb I2C adapter
i2c-5 i2c i915 gmbus dpd I2C adapter
i2c-6 i2c DPDDC-B I2C adapter
There's no mention of the I2C ports on the Custom Solutions Header. I did have success connecting an I2C device to the "CLOCK" and "DATA" pins on the VGA connector and querying the "/dev/i2c-1" bus which is from the GPU -> VGA connector, but it's not an elegant solution.
Has anyone had any experience with this?
Thanks much in advance!