diff options
author | nik <nik@FreeBSD.org> | 1999-07-28 20:28:54 +0000 |
---|---|---|
committer | nik <nik@FreeBSD.org> | 1999-07-28 20:28:54 +0000 |
commit | 5fb9ea27ca83199dd7e3d416c88ca2727e0b290f (patch) | |
tree | 9b29878f91d3d1ce44198558955f7d09f5a848af /etc/defaults | |
parent | e34ff91e6c62461bf2df88b64b48fd50e7426480 (diff) | |
download | FreeBSD-src-5fb9ea27ca83199dd7e3d416c88ca2727e0b290f.zip FreeBSD-src-5fb9ea27ca83199dd7e3d416c88ca2727e0b290f.tar.gz |
Explicitly list the i/o addresses of the serial ports.
Prompted by docs/12343, in which people seemed to get a little confused.
The original text in the file said:
[...]
# By default we use COM1 as our serial console port *if* we're going to use
# a serial port as our console at all. (0x3E8 = COM2)
#
#BOOT_COMCONSOLE_PORT= 0x3F8
[...]
From what I can make out, some people have assumed that means that if
they just uncomment the BOOT_COMCONSOLE_PORT then it will use COM2:
These same people then assume that "0x3F8" on that line is a typo for
"0x3E8".
What it actually means is that if you uncomment the line then the default
stays as "Ox3F8" (COM1:), and that you have to uncomment the line, *and*
change the value of the variable in order to use COM2:.
So I've made that a little bit clearer. I've also listed the hex values
for COM1: thru COM4:, snarfed from sys/isa/isareg.h.
PR: docs/12343
Submitted by: Bill Grunfelder <wjgrun@dippy.cyberwar.com>
Diffstat (limited to 'etc/defaults')
-rw-r--r-- | etc/defaults/make.conf | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/etc/defaults/make.conf b/etc/defaults/make.conf index 6387d85..c6c3c7d 100644 --- a/etc/defaults/make.conf +++ b/etc/defaults/make.conf @@ -1,4 +1,4 @@ -# $Id: make.conf,v 1.80 1999/06/01 02:55:42 billf Exp $ +# $Id: make.conf,v 1.81 1999/06/04 03:17:04 billf Exp $ # # This file, if present, will be read by make (see /usr/share/mk/sys.mk). # It allows you to override macro definitions to make without changing @@ -76,7 +76,9 @@ # serial port in addition to or instead of the keyboard/video console. # # By default we use COM1 as our serial console port *if* we're going to use -# a serial port as our console at all. (0x3E8 = COM2) +# a serial port as our console at all. Alter as necessary. +# +# COM1: = 0x3F8, COM2: = 0x2F8, COM3: = 0x3E8, COM4: = 0x2E8 # #BOOT_COMCONSOLE_PORT= 0x3F8 # |