I tried the packages for NSLU2, but they were not working very good.
However, I managed to compile freetype, ghostscript, imagemagick and gsfonts
for openwrt now, so it's possible to generate images on Asus wl500gd with
extra memory-stick at least. Only flash is not possible.
All packages are installed at /opt which should be a softlink to
/mnt/disc0_1/ where the memorystick is mounted. All packages are about 30Mb
on the memory-stick, and I guess you need 32Mb RAM as well to run
ghostscript and imagemagick .
I will create some new NSLU2 packages too so it works for those users too.
# du /opt/
168 /opt/lib/ImageMagick-6.3.5/config
4632 /opt/lib/ImageMagick-6.3.5/modules-Q16/coders
16 /opt/lib/ImageMagick-6.3.5/modules-Q16/filters
4652 /opt/lib/ImageMagick-6.3.5/modules-Q16
4824 /opt/lib/ImageMagick-6.3.5
9460 /opt/lib
3232 /opt/bin
2320 /opt/share/ghostscript/8.50/lib
6264 /opt/share/ghostscript/8.50/Resource/CMap
20 /opt/share/ghostscript/8.50/Resource/ColorSpace
76 /opt/share/ghostscript/8.50/Resource/Decoding
6364 /opt/share/ghostscript/8.50/Resource
3004 /opt/share/ghostscript/8.50/doc
364 /opt/share/ghostscript/8.50/examples
12056 /opt/share/ghostscript/8.50
4972 /opt/share/ghostscript/fonts
17036 /opt/share/ghostscript
17040 /opt/share
30144 /opt
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rob
Conway
Sent: den 23 augusti 2007 15:24
To: [email protected]
Subject: Re: [Owfs-developers] Error trap works great on NSLU2 with owfs
The power of imagemagic coupled with rrdtool png files will be nothing more
than amazing...This is fantastic, If you where in Australia I'd send you a
beer !
I cannot stop long enough to figure out what I want to use it for first
Gees hope it runs OK on my little slug....I was thinking it maybe less load
when showing values on a graphic background just to use layers on the web
page layout and display a jpeg image of just the value..thus imagemagic
would not have to crunch large jpegs just convert my 1wire data value into a
simple graphic to display.
WOW you are a champion !
So I assume I load ghostscript then imagemagic
rob
----- Original Message -----
From: Christian Magnusson <mailto:[EMAIL PROTECTED]>
To: [email protected]
Sent: Thursday, August 23, 2007 10:59 PM
Subject: Re: [Owfs-developers] Error trap works great on NSLU2 with owfs
It's run on a Asus WL500gd with openwrt 0.9.
I managed to cross-compile imagemagick for openwrt, but I stumbled into a
major problem later. Imagemagick requires ghostscript, and that I never
succeeded to cross-compile that huge package for openwrt.
Ghostscript and imagemagick are available for NSLU2 though. So it should be
possible to use imagemagick on that device.
http://ipkg.nslu2-linux.org/feeds/optware/nslu2/cross/stable/ghostscript_8.5
0-2_armeb.ipk
http://ipkg.nslu2-linux.org/feeds/optware/nslu2/cross/stable/imagemagick_6.3
.5-3-1_armeb.ipk
I have made a simple web-interface to control some switches and
potentiometers via cgi-scripts too, but it's still a major hack and under
development.
Perhaps I can show it in a few days. I don't want to give out the URL to
Christian Schumann's web-interface even if it's password protected.
/Christian
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rob
Conway
Sent: den 23 augusti 2007 13:03
To: [email protected]
Subject: Re: [Owfs-developers] Error trap works great on NSLU2 with owfs
Christian,
What platform does this run on ?
I like the graphic....do you happen know if imagemagic runs on an unslung
NSLU2 ?
Did you implement control of any outputs from a web interface ?
thanks for sharing
cheers
rob
----- Original Message -----
From: Christian Magnusson <mailto:[EMAIL PROTECTED]>
To: [email protected]
Sent: Thursday, August 23, 2007 6:11 PM
Subject: Re: [Owfs-developers] Error trap works great on NSLU2 with owfs
Sorry, I copied an old script, and here is a bit more simplified error
check. Only test error-status "$?" is needed.
#!/bin/ash
readsensor () (
VAL=`owread -s 3002 $1/$2 2>&1`
ERR=$?
[ $ERR != 0 ] && {
date >>$DEBUGFILE
echo >>$DEBUGFILE "ERROR: owread $1 failed 1st time: $VAL"
VAL=`owread -s 3002 $1/$2 2>&1`
ERR=$?
[ $ERR != 0 ] && {
echo >>$DEBUGFILE "ERROR: owread $1 failed 2nd time: $VAL";
false; return;
}
}
# save last value to a file as well (mostly for web-server)
[ "$2" = "temperature" ] && echo "$VAL" > /tmp/last_val.$1.$2
echo "$VAL"
true;
)
writesensor () (
VAL=`owwrite -s 3002 $1/$2 $3 2>&1`
ERR=$?
[ $ERR != 0 ] && {
date >>$DEBUGFILE
echo >>$DEBUGFILE "ERROR: owwrite $1/$2 $3 failed 1st time."
VAL=`owwrite -s 3002 $1/$2 $3 2>&1`
ERR=$?
[ $ERR != 0 ] && {
echo >>$DEBUGFILE "ERROR: owwrite $1/$2 $3 failed 2nd time.";
false; return;
}
}
true;
)
VAL=`readsensor $SENSOR PIO`
ERR=$?
[ $ERR != 0 ] && exit 1
/Christian
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