OWFS with Ubuntu Linux (10.04 LTS lucid) and Debian Linux (5.0 Etch and 6.0 Squeeze)
OWFS is a FUSE filesystem for 1-wire network. For more information about OWFS please browse OWFS homepage.
This documentation describes how I built and installed OWFS. My task is
to read temperature measures from DS18S20 components. The network is
based on a DS9490R USB interface. There is a well-known temperature
sensor reader DigiTemp but for some reason it turned out to be less reliable for my USB interface. Thus, I wanted to try another solution.
OWFS depends on FUSE and it packaged packaged. Since I had all
development tools (automake, autoconf, gcc, etc.) already installed, i
just had to install some packages:
# apt-get install fuse-utils libfuse-dev libusb-dev
OWFS building and installation
All binaries are now installed at /opt/owfs/bin/.
- Download OWFS source (OWFS download page). While writing, the latest version is 2.8p2 and it was used.
- Untar package and cd to the source directory
$ tar --get -z <owfs-2.8p2.tar.gz
$ cd owfs-2.8p2
- Since I had wanted just the filesystem module with usb support
without any other OWFS features I used following parameters for the
$ ./configure --disable-tai8570 --disable-thermocouple --disable-ha7 \
--disable-owhttpd --disable-owftpd --disable-swig --disable-owperl \
--disable-owphp --disable-owpython --disable-owtcl --disable-zero \
- Ready to compile:
- Install (as root):
# make install
As I told above, I want to read temperature measurements from DS18S20 behind an USB interface. As root:
# mkdir /tmp/1ws
Looks good! I created a mount point under /tmp, mounted the 1-wire
network with owfs from USB (-u) to /tmp/1ws and looked for its content.
The directory 10.9207A5010800 was my temperature sensor and it contains
a file "temperature" with the current temperature reading. Finally, I
unmounted the OWFS filesystem.
# /opt/owfs/bin/owfs -u /tmp/1ws/
DEFAULT: ow_usb_msg.c:DS9490_open(263) Opened USB DS9490 bus master at 3:2.
DEFAULT: ow_usb_cycle.c:DS9490_ID_this_master(191) Set DS9490 3:2 unique id to 81 F7 17 2D 00 00 00 9D
# ls /tmp/1ws
10.9207A5010800 alarm settings statistics system
81.F7172D000000 bus.0 simultaneous structure uncached
# cat /tmp/1ws/10.9207A5010800/temperature
# umount /tmp/1ws
Updated: 29-SEP-2010 / Matti Lattu