Don't call queries "PS/2 commands", it's confusing.
Add queries to read mode and model id (not used yet).
Fix SYNAPTICS_CAP_EXTNUM - it's 3 bits [14:12], not 2.
new, simplified ADB drivers
add pmu and cuda at obio
Remove more duplicate #includes, and a few spurious whitespaces at EOL
From Slava Semushin <slava.semushin@gmail.com>
new drivers for pmu and cuda
use pmu and cuda for reset, shutdown etc. when appropriate
also deal with adbkbd vs. akbd
driver for the SGS 7433 mixer found in some G3 macs
add sgsmix
use sgsmix if present and appropriate
add iBook keyboard type
shuffle #includes, add a bus_space_tag
Use Pq.
pass a bus_space_tag to children
fix accidential commit, this time really only add the bus_space_tag
make some tables static to avoid collisions
avoid another collision
add commented out definitions for new ADB subsystem and G3 audio
Added a warning about a wrong usage, which is nevertheless often found
in real code, and an example code that does it correctly.
Added a reference to ctype.3. What's the value of having that page at
all if it isn't referenced by others?

Suggested by Slava Semushin via private mail.
Use device_private() and aprint_*.