tree 0dcf89cf6cb4b4cb1cde9fcab564f6631c5175e3
parent a78e39fdbfc44df0f24ab4f715f755ccd53af0f0
author Patrick Venture <venture@google.com> 1541563571 -0800
committer Patrick Venture <venture@google.com> 1541563699 -0800

firmware: add write method

The write() method is how the different firmware handlers will receive
data from the update process.

Change-Id: I550a25f69272bae917309956fef798bc3d4eed2e
Signed-off-by: Patrick Venture <venture@google.com>