While here, also remove two forgotten descriptions for long obsolete
devices.

ok deraadt@ yasuoka@ reyk@

unused for now, but I plan to convert all programs in base to use it in
a future diff. /dev/bpf0 is for compatibility with existing binaries
and is to be removed after a transition period.
ok rpe krw, for the installer part
"Let's see it hit the tree." deraadt

Needed for the key-value interface that has been added to pvbus(4).
OK mikeb@

OK dlg@ mpi@

discussed with rpe and halex

spotted by Nathanael Rensen, thanks!

elsewhere for running with multiple cards.

from Sylvestre Gallon ccna.syl gmail.com

mostly from armani.
ok miod, mpi, jsg and help from sthen

number of audio* nodes from 3 to 1 on vax, since none of the audio-capable
vax can receive another audio device as expansion (until we get TURBOchannel
support with DMA on VS4k/90).
ok deraadt@ todd@

discussed with jsing and millert

explicitly. OK dlg@ & todd@

Prodded by jmc@.

General huzzahs.
"go for it" deraadt@

ok todd@ krw@ deraadt@

get it in! jsing@

all-in-one usb card readers and memory sticks you run out of sd
device files very quickly with default install.
This doesn't affect install media.
ok krw@ miod@

"Special purpose devices" section, since a hardware driver which uses
video(4) also could be none-USB as long it uses the V4L2 API.
OK todd@

get it in, deraadt@

help (a lot...) and ok todd.

ok deraadt@, marco@

ok oga@

please commit from deraadt@

actually get detected and attached. Also adds a kernel api for
manipulating agp.
Enable this on i386 and amd64.
"I think you should commit it" deraadt@, ok matthieu. Looked over by
several others.

has become a gate to both apm and acpi.  ok deraadt

ok mk@

ok todd

pave the way for future work; ok since this does not change the generated
MAKEDEV