Ubuntu Manpage: owfs.conf - owfs programs configuration file

NAME

       owfs.conf - owfs programs configuration file

SYNOPSIS

       An OWFS configuration file is specified on the command line:

       owfs -c config_file [other options]
              The file name is arbitrary, there is no default configuration file used.

USAGE

       A  configuration  file  can be invoked for any of the OWFS programs ( owfs (1) owhttpd (1)
       owserver (1) owftpd (1) ) or any of the language bindings ( owperl (1)  owcapi  (1)  owtcl
       (1) owphp owpython ) to set command line parameters.

SYNTAX

       Similar to Unix shell script or perl syntax

       Comments
              # Any # marks the start of a comment
              # blank lines are ignored

       Options
              option # some options (like 'foreground') take no values
              option = value # other options need a value
              option value # '=' can be omitted if whitespace separates
              Option # Case is ignored (for options, not values)
              opt # non-ambiguous abbreviation allowed
              -opt --opt # hyphens ignored

       owserver
              server: opt = value # only owserver effected by this line
              ! server: opt = value # owserver NOT effected by this line

       owhttpd
              http: opt = value # only owhttpd effected by this line
              ! http: opt = value # owhttpd NOT effected by this line

       owftpd ftp: opt = value # only owftpd effected by this line
              ! ftp: opt = value # owftpd NOT effected by this line

       owfs   owfs: opt = value # only owfs effected by this line
              ! owfs: opt = value # owfs NOT effected by this line

       Limits # maximum line length of 250 characters
              # no limit on number of lines

DESCRIPTION

1-Wire
1-wire is a wiring protocol and series of devices designed and manufactured by Dallas
Semiconductor, Inc. The bus is a low-power low-speed low-connector scheme where the data
line can also provide power.

Each device is uniquely and unalterably numbered during manufacture. There are a wide
variety of devices, including memory, sensors (humidity, temperature, voltage, contact,
current), switches, timers and data loggers. More complex devices (like thermocouple
sensors) can be built with these basic devices. There are also 1-wire devices that have
encryption included.

The 1-wire scheme uses a single bus master and multiple slaves on the same wire. The bus
master initiates all communication. The slaves can be individually discovered and
addressed using their unique ID.

Bus masters come in a variety of configurations including serial, parallel, i2c, network
or USB adapters.

OWFS design
OWFS is a suite of programs that designed to make the 1-wire bus and its devices easily
accessible. The underlying principle is to create a virtual filesystem, with the unique ID
being the directory, and the individual properties of the device are represented as simple
files that can be read and written.

Details of the individual slave or master design are hidden behind a consistent interface.
The goal is to provide an easy set of tools for a software designer to create monitoring
or control applications. There are some performance enhancements in the implementation,
including data caching, parallel access to bus masters, and aggregation of device
communication. Still the fundemental goal has been ease of use, flexibility and
correctness rather than speed.

Configuration
owfs.conf (5) allows a uniform set of command line parameters to be set.

Not all OWFS programs use the same command line options, but the non-relevant ones will be
ignored.

Command line and configuration options can mixed. They will be invoked in the order
presented. Left to right for the command line. Top to bottom for the configuration file.

Configuration files can call other configuration files. There is an arbitrary depth of 5
levels to prevent infinite loops. More than one configuration file can be specified.

SAMPLE

       Here is a sample configuration file with all the possible parameters included.
              # Sources
              device = /dev/ttyS0 # serial port: DS9097U DS9097 ECLO or LINK
              device = /dev/i2c-0 # i2c port: DS2482-100 or DS2482-800
              usb #       USB device: DS9490 PuceBaboon
              usb = 2 #   Second DS9490
              usb = all # All DS9490s
              altUSB # Willy Robison's tweaks
              LINK = /dev/ttyS0 #     serial LINK in ascii mode
              LINK = [address:]port # LINK-HUB-E (tcp access)
              HA7 # HA7Net autodiscovery mode
              HA7 = address[:port] # HA7Net at tcp address (port 80)
              etherweather = address[:port] # Etherweather device
              server = [address:]port # owserver tcp address
              FAKE = 10,1B # Random simulated device with family codes (hex)
              TESTER = 28,3E # Predictable simulated device with family codes
              #
              # Sinks
              # # owfs specific
              mountpoint = filelocation # FUSE mount point
              allow_other # Short hand for FUSE mount option "
              # # owhttpd owserver owftpd specific
              port = [address:]port # tcp out port
              #
              # Temperature scales
              Celsius # default
              Fahrenheit
              Kelvin
              Rankine
              #
              # Timeouts (all in seconds)
              #                    cache for values that change on their own
              timeout_volatile = value # seconds "volatile" values remain in cache
              #                    cache for values that change on command
              timeout_stable = value # seconds "stable" values remain in cache
              #                    cache for directory lists (non-alarm)
              timeout_directory = value # seconds "directory" values remain in cache
              #                    cache for 1-wire device location
              timeout_presence = value # seconds "device presence" (which bus)
              timeout_serial = value # seconds to wait for serial response
              timeout_usb = value # seconds to wait for USB response
              timeout_network = value # seconds to wait for tcp/ip response
              timeout_ftp = value # seconds inactivity before closing ftp session
              #
              # Process control
              configuration = filename # file (like this) of program options
              pid_file = filename # file to store PID number
              foreground
              background # default
              readonly # prevent changing 1-wire device contents
              write # default
              error_print = 0-3 # 0-mixed 1-syslog 2-stderr 3-suppressed
              error_level = 0-9 # increasing noise
              #
              # zeroconf / Bonjour
              zero #   turn on zeroconf announcement (default)
              nozero #   turn off zeroconf announcement
              annouce = name  # name of announced service (optional)
              autoserver #   Add owservers descovered by zeroconf/Bonjour
              noautoserver #   Don't use zeroconf/Bonjour owservers (default)
              #
              # tcp persistence
              timeout_persistent_low = 600 # minimum time a persistent socket will stay open
              timeout_persistent_high = 3600 # max time an idle client socket will stay around
              #
              # Display
              format = f[.]i[[.]c] # 1-wire address f amily i d code c rc
              #
              # Cache
              cache_size  = 1000000 # maximum cache size (in bytes) or 0 for no limit (default 0)
              #
              # Information
              # (silly in a configuration file)
              version
              help
              morehelp

AVAILABILITY

       http://www.owfs.org

AUTHOR

       Paul Alfille (paul.alfille@gmail.com)