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NetWinder utility programs
==========================
This package contains several utility programs for the NetWinder. Some of
them depend on features that must be built into the kernel or be included
as a loadable module. The source for those modules is a part of the kernel
source and is not distributed in this archive.
All of the packages have their own man pages except for the debug program,
which has on-line help available by typing '?'. Hopefully this will do for
most people...
-Ralph Siemsen <ralphs@corelcomputer.com>
===========================================================================
Woody's original notes follow:
(note that the kernel drivers are moved into the kernel source now).
===========================================================================
Therm driver
------------
To compile therm.c and therm.h into therm.o as a module
gcc -O -DMODULE -D__KERNEL__ -m6 -c therm.c
To load:
cd /dev
mknod -m 666 /dev/temperature c 10 131
We suggest adding (for back compability)
ln -s temperature therm
so that programs willing to talk to /dev/therm will succeed.
This will create device node in /dev directory
Then
insmod -v [-f] therm.o
To program the thermostat's temperature setting:
set_therm temperature(C), e.g. set_therm 45 42
Running set_therm without parameters will report current setting.
Once programmed, remove the device driver:
rmmod therm
The setting will remain valid till changed again.
Additionally the current temperature and thermostate setting can be monitored
with a 0.5C resolution by reading /proc/therm entry, e.g.
cat /proc/therm
For compatibility with WDT501 chip driver, the /dev/temperature can be read,
it will return 1 byte with current temperature in Fahrenheit (or cubits ;-).
For people, who do not want to hear the fan - there is a utility fan_ctrl.
Syntax: fan_ctrl ON or OFF or START.
The START option is designed to kick the fan to HI for 2 seconds, as
sometimes it seems to be stuck, when in LOW gear. After 2 seconds, it goes
to its default.
If you wish to turn the fan off, do it on your own risk! I tried to run the
Netwinder vertically, on the stand (stand _is_ important!), in a 20C room
with no fan, seemed OK, but....
Watchdog
---------
To compile watchdog.c into watchdog.o
gcc -O -DMODULE -D__KERNEL__ -m6 -c watchdog.c
To load:
cd /dev
mknod -m 666 /dev/watchdog c 10 130
This will create device node in /dev directory
Then
insmod -v [-f] watchdog.o [timeout=nn] [testmode=1]
if timeout is specified, it will replace default 3 min.
if testmode is specified, in case of timeout the Netwinder will not reboot,
but the front LED will start blinkinking.
woody@corelcomputer.com
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