Today, on chromebook, to detect screen orientation (portrait, landscape, inverted portrait, inverted landscape), chrome is polling lid accelerometer data and calculating the orientation. To save power, I want the embedded controller (EC) to forward an event when the lid acceleration detects an orientation change. To convey that information, I would like to define a rotary encoder with 4 regions, the counter increases when the screen is rotated clockwise, (decreases when rotated counter-clockwise) and would increment by 4 on a full rotation. The EC knows the accelerometer placement relative to the screen, so we can define landscape as count % 4 equals to 0. Would such a counter fit into the counter subsystem? Regards, Gwendal.
