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Fix typo reported by Brian Chase in PR 23751.

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While here, do some cleanup.
This commit is contained in:
wiz 2003-12-14 18:08:43 +00:00
parent 9eead0293e
commit 72237e6413
1 changed files with 20 additions and 15 deletions
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35
share/man/man4/adb.4
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@ -1,4 +1,4 @@
.\" $NetBSD: adb.4,v 1.1 2003/09/26 19:15:15 mbw Exp $
.\" $NetBSD: adb.4,v 1.2 2003/12/14 18:08:43 wiz Exp $
.\"
.\" Copyright (c) 2003 Alex Zepeda <zipzippy@sonic.net>
.\" Copyright (c) 1997 Colin Wood
@ -41,7 +41,7 @@
.Pp
.Cd "options MRG_ADB"
.Pp
.Cd "#include \*[Lt]machine/adbsys.h\*[Gt]"
.In machine/adbsys.h
.Sh DESCRIPTION
The Apple Desktop Bus
.Pq Tn ADB
@ -54,22 +54,26 @@ provides support for the Apple Desktop Bus as found on all supported
mac68k models, as well as macppc models with on-board
.Tn ADB
(PowerBooks and
.Dq Old World"
.Dq Old World
models).
.Pp
The
.Nm
driver access the
.Tn ADB controller using the so-called
driver accesses the
.Tn ADB
controller using the so-called
.Dq HWDIRECT
method. This method of access bypasses the Macintosh ROM and uses only
method.
This method of access bypasses the Macintosh ROM and uses only
.Nx
routines for ADB access. This is the only method supported on macppc
and is the default for mac68k systems.
routines for ADB access.
This is the only method supported on macppc and is the default for
mac68k systems.
.Pp
On mac68k systems there is an alternate method of accessing the
.Tn ADB
controller. With the Macintosh ROM Glue
controller.
With the Macintosh ROM Glue
.Pq Tn MRG
method, the routines written for MacOS are used.
To enable this method of
@ -97,8 +101,9 @@ Device Info
The
.Nm
event device will return an array of information containing an entry
for each device connected to the bus. Each entry contains the
current address, default address, and handler ID for the corresponding
for each device connected to the bus.
Each entry contains the current address, default address, and
handler ID for the corresponding
.Tn ADB
device.
.It Dv ADBIOC_GETREPEAT
@ -236,8 +241,8 @@ Thus absolute-position and other exotic devices will not work.
Some of the diagnostic messages in this man page need to be updated.
.El
.Pp
Some mac68k machines contain so-called dirty ROM. These machines are
the: Mac SE/30, Mac II, Mac IIx, and Mac IIcx.
Some mac68k machines contain so-called dirty ROM.
These machines are the: Mac SE/30, Mac II, Mac IIx, and Mac IIcx.
Machines with dirty ROM may experience trouble booting if the MRG code
is used, especially under the following conditions:
.Bl -bullet -compact -offset indent
@ -248,10 +253,10 @@ An extended keyboard is attached to the computer.
.El
.Pp
On (some) machines with dirty ROM, the ROM indicates the presence of a
"ghost" keyboard or mouse.
.Dq ghost
keyboard or mouse.
When this non-existant device is probed for, the result is an infinite
loop.
This is believed to be triggered by the
.Nm
driver probing for extended mice, and non-EMP Logitech mice.