tree c0945054ae0f74c19349809fee0682715ac1bfff
parent b7fead97ea5d9f47677a6375cfacd1fe6c200eb5
author Peter Nordström <pnordstrom@google.com> 1547600976 -0800
committer Peter Nordström <pnordstrom@google.com> 1547679608 -0800

Change auto-focus related behavior

OV5645 supports three different modes for its AF functionality.

 0. Released AF. No AF functionality is active.
 1. One-shot focus. Camera analyzes images and locks the lens
    at current focus.
 2. Continous mode: Camera continously analyzes image and
    makes stepwise focal adjustments.

This change sets the default mode for a video stream to continous
mode, and allows for user setting of all modes via the ov5645_af
sysfs node by writing 0, 1 or 2 to the node respectively.

Change-Id: Ia9e3f3088d04c16de8e908e799420ed021480a4f