parse I-8042 config

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
reuse map

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
block setpoints

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>
read I-8042 status

Signed-off-by: Sergei Ianovich <ynvich@gmail.com>