Hi Paul,
Thankyou for your very quick reply!
> 1. Starting owfs with
> /opt/owfs/bin/owfs -F -u --mountpoint /mnt/onewire --error_level 4
> would work.
Using my already-installed owfs-2.5p0, I've now tried again using
' /opt/owfs/bin/owfs -F -u --mountpoint /mnt/onewire --error_level 4' at the
command line, and the resulting printout is:
CONNECT: fuse mount point: /mnt/onewire
CALL: PARSENAME path=[]
CONNECT: Adapter found: 002/002
DEFAULT: Opened USB DS9490 adapter at 002/002.
DATA: DS9490_setup_adapter: done (ret=0)
DATA: DS9490_overdrive()
DATA: BUS_first: No data will be returned
DATA: DS9490_reset
DATA: DS9490_reset: ok
DATA: DS9490_reset
DATA: DS9490_reset: ok
CONNECT: Good DS1421 tag found for 002/002
DEFAULT: Set DS9490 002/002 unique id to FFFFFF81 3C 67 25 00 00 00
FFFFFF8B
If, however, I then type 'ls' at the shell prompt (as root user), nothing is
listed. Same applies for viewing the directory /mnt/onewire via konquorer;
nothing visible.
> 2. So would 2.5p1 (just released)
I have now downloaded and installed owfs-2.5p1 (killed owfs and then
restarted). In response to typing ' /opt/owfs/bin/owfs -F -u
--mountpoint /mnt/onewire --error_level 4' at the command line, I get the
same shelloutput as obtained with owfs-2.5p0. Also, no response to 'ls' at
the command line.
> 3. DS1921G thermocron) support might be a little flaky. I clearly need to
> work on it. Basically there are so many features in the DS1921 that it's
> quite a chore representing it as a filesystem.
> My thought is no make rollover, timestamping and histograms transparent. My
> hope is to make it possible to pipe the output from the DS1921 to gplot to
> get nice displays. Tell me what you want to do with it.
I want to be able to programme the DS1921G (and hopefully later too, the
DS1922L when support is implemented) to collect termperature data (start of
mission timing, frequency of sampling, fixed mission length or rollover). I
also want to be able to access that data directly, both as a data set and as
a graphical representation (in a browser or otherwise).
So far, in an attempt to view the data graphically, I've been mucking around
with templogged, unsuccessfully though. When I start owfs with the correct
command line (thankyou for that), then visit the web page
'http://localhost/cgi-bin/21.38E215000000.temperature.cgi', no graph is
presented. Rather, that page shows:
Temperature graph
[ERROR: Could not make sense out of '']
Data during this period
Last data : [ERROR: reading the cookie
off /home/.......etc...../temploggerd/rrd/temperature.rrd faild]
Can you see anything else that I'm doing wrong, which might explain why I
can't see files in the DS1921G using owfs ?
Cheers
Andrew
> Paul Alfille
>
> On 9/12/06, Andrew Lord <[EMAIL PROTECTED]> wrote:
> > Hi,
> >
> > I'm having trouble seeing the files/filesystem in my DS1921G using owfs.
> > I can
> > view data through owhttpd but that's not sufficient, since I need to be
> > able
> > to access them through owfs, in order to use temploggerd. Iwondered if
> > anyone might be able to point out where I'm going wrong please.
> >
> > System: Mandriva Linux (Kernel 2.6.12.25), USB connector is DS9490R,
> > Sensor is
> > the DS1921G (temperature datalogger)
> >
> > I've configured (confiuration is shown at end of e-mail), made &
> > installed owfs-2.5p0 without any apparent hitches. Then, I've opened a
> > shell, su'd to
> > root and done the following.
> > [EMAIL PROTECTED] andrew] rmmod ds9490r
> > [EMAIL PROTECTED] andrew] /opt/owfs/bin/owfs -F -u /mnt/onewire
> > --error_level 4
> >
> > In response, at the shell prompt, I get 1000's of lines saying . . .
> > DEFAULT: Not a "character" device /mnt/onewire
> > DEFAULT: Not a "character" device /mnt/onewire
> > DEFAULT: Not a "character" device /mnt/onewire
> > etc.
> > etc.
> >
> > A quick check of which processes are running, shows that owfs is indeed
> > running.
> >
> > 'DEFAULT: Not ..... etc' continues to print out indefinitely, and the
> > only way
> > to stop it is to identify the PID of owfs and then kill it in a shell.
> >
> > If, before killing owfs (as mentioned above), I open another shell and do
> > 'su' root, then 'cd /mnt/onewire', then type 'ls' to view the files under
> > that directory, I get nothing visible within that directory. ie. The
> > cursor
> > simply moves to a new line '[EMAIL PROTECTED] onewire]'.
> >
> > If I open a konquoror window (as root user) and attempt to view the
> > contents
> > of /mnt/onewire, no files are visible in that directory.
> >
> > It seems that I must be doing something wrong, somewhere. Or am I ?
> >
> > I would really appreciate any useful feedback on this problem.
> >
> > Cheers,
> >
> > Andrew
> >
> >
> > ##############################################
> > owfs-2.5p0 is configured as follows:
> > ##############################################
> > Compile-time options:
> > Caching is enabled
> > USB is enabled
> > i2c is enabled
> > HA7Net is enabled
> > Multithreading is enabled
> > Parallel port DS1410E is enabled
> > TAI8570 barometer is enabled
> > Thermocouples are enabled
> > Debug-output is enabled
> > Profiling is enabled
> >
> > Module configuration:
> > owfs is enabled
> > owhttpd is enabled
> > owftpd is enabled
> > owserver is enabled
> > owcapi is enabled
> > swig is enabled
> > owperl is enabled
> > owphp is enabled
> > owpython is enabled
> > owtcl is enabled
> > ##############################################
> >
> > -------------------------------------------------------------------------
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