dtv-scan-tables.git - dtv-scan-tables Debian packaging

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# # $Id: README,v 1.16 2001/03/09 14:24:49 ltoetsch Exp $ # This is the README file for lcd4linux INTRODUCTION lcd4linux is a small program that reads various information from the kernel (and probably from other subsystems, especially ISDN) and displays them on a LCD. It supports displaying text values and different types of bars: Horizontal and vertical bars, logarithmic bars, split bars (two independent bars in one row). USAGE lcd4linux -h print version number and a small help text, then exit lcd4linux -l list available drivers lcd4linux -d calibrate delay loop (necessary for some drivers) lcd4linux [-c key=val] [-F] [-f config-file] [-o output] [-q] [-v] run lcd4linux overwrite entries from the config-file with '-c' do not fork and detach with '-F' use configuration from 'config-file' instead of /etc/lcd4linux.conf write picture to 'output' (raster driver only) suppress startup splash screen with '-q' generate info messages with '-v' generate debugging messages with '-vv' DIAGNOSTICS lcd4linux on foreground writes (depending on level) to stdout or stderr. The Text-Driver has ist's own diagnostics window. Started in the background (the default), lcd4linux uses your syslog daemon for logging. Facility is USER, levels are ERR, INFO and DEBUG. SUPPORTED DISPLAYS * Matrox Orbital: <http://www.matrixorbital.com> "LCD0821": 2 lines by 8 characters "LCD1621": 2 lines by 16 characters "LCD2021": 2 lines by 20 characters "LCD2041": 4 lines by 20 characters (tested) "LCD4021": 2 lines by 40 characters * CrystalFontz <http://www.crystalfontz.com> any of 626, 632, 634 and 636. * HD44780-based displays This driver supports display modules based on the Hitachi HD44780 chip, connected to a parallel port. These displays are made by different manufactures, and come in various sizes. * PalmOrb I was told that lcd4linux works fine with PalmOrb, a small program that emulates a Matrox Orbital display on the Palm Pilot. * X11 thanks to Herbert Rosmanith <herp@wildsau.idv.uni-linz.ac.at> a driver for the X Window System is available. It supports any size at any resolution. A very small XLCD4Linux-Window can even swallow on the KDE Panel! * Raster formats: a generic raster driver (which is used by the X11-driver, too) is availiable, it supports: PPM (portable pixmap) PNG (with libgd) * Text: This is a ncurses based text driver, mainly intended for debugging. * other displays: lcd4linux and especially the display driver code is very modular, so it should be quite easy to write a driver for any display. See README.driver for details. Contributors are welcome!!! CONFIGURATION The configuration file (default: /etc/lcd4linux.conf) has a very simple format: Every line consists of a key and a value, seperated by whitespace (blanks or tabs). Values can contain whitespace, and can be enclosed in single or double quotes. A key must not contain whitespace. Keys are NOT case-sensitive. Order doesn't matter. Empty lines and all text on a line after a '#' will be ignored. If you want to use '#' in a value (think of X11-colors), you have to quote it with a backslash. NOTE: Because of security reasons the config file is assured to be: * - file is a normal file (or /dev/null) * - file owner is owner of program * - file is not accessible by group * - file is not accessible by other So if you run lcd4linux as root, /etc/lcd4linux has to be: chmod 600 chown root.root The configuration file contains information for different modules of lcd4linux: Global options: tick: time in milliseconds between bar updates tack: time in milliseconds between text updates (text can be updated less often than bars, so you get a smooth bar display and readable text) tau: time constant (in milliseconds) for damping function (not used by now) Data-specific options: overload: load average threshold and bar scaling. The '%L' token (see below) displays a '!' instead of a blank if the current load average exceeds this value. load bars are scaled by this value (load=overload gives 100%) fifo: path to fifo for communication with isdnlog (not yet implemented) sensor1: path to the 1st temperature file (e.g. /proc/sys/dev/sensors/w83781d-isa-0290/temp1) it is important that you use the isa sensors, because the i2c sensors are very slow! sensor1_min: temperature where the corresponding bar starts sensor1_max: temperature where bar ends sensor[2..9], -_min, -_max: entries for the 2nd to 9th temperature sensor exec: x1 ... x9: command to execute, PATH=/usr/local/bin:/usr/bin:/bin $X1 ... $X8 is result of command 1..8 in environment Tick_x1 .. 9 delay in ticks (overrides delay_x) Delay_x1 ..9 delay in seconds (default 1) Max_x1 ..9 max value for bars (default 100) Min_x1 ..9 min value for bars (default 0) battery: Battwarning 10 (default 10) Driver-specific options: Display: the name of a display model (see "supported displays" above) every driver has its own configuration options (e.g. 'Port', 'Speed', ...) see README.<Drivername> for details! Display options: row1: Text to display in row 1 row[2-max]: Text to display in other rows The text to be displayed can contain specific directives, which will be replaced by the appropriate values, or will create bars: '\nnn` will write the ASCII-character nnn (octal) '%<token>' will be replaced by the value of <token> '%%' will write a '%' '%$' will write a '$' '$<direction><length><token>[+<token>] will create a bar with the specified direction and length (in characters) with the value of <token>. If the driver supports dual bars, you can specify the second value with '+<token>'. <direction> can be 'l' (left), 'r' (right), 'u' (up) or 'd' (down). If you specify the direction in upper case, a logarithmic bar will be created. note that the space occupied by a bar always grows from left to right or from top to bottom, regardless of the direction! Tokens: 'o', operating system name ('Linux') 'v', operating system release ('2.0.38') 'p', processor ('i686') 'r', total amount of memory installed (MB) 'mt', total memory from /proc/meminfo (kB) 'mu', used memory (kB) 'mf', free memory (kB) 'ms', shared memory (kB) 'mb', buffers (kB) 'mc', page cache (kB) 'ma', application memory (kB) = used - buffer - cache 'l1', load average for the past 1 minute 'l2', load average for the past 5 minutes 'l3', load average for the past 15 minutes 'L', '!' if load > overload (from config) 'cu', percentage of CPU in user mode 'cn', percentage of CPU in niced tasks 'cs', percentage of CPU in system mode 'cb', percentage of CPU busy (=100-idle) 'ci', percentage of CPU idle 'dr', disk blocks read 'dw', disk blocks written 'dt', disk blocks total (read+write) 'dm', disk blocks max (read, write) 'nr', network bytes received 'nw', network bytes transmitted 'nt', network bytes total (receive+transmit) 'nm', network bytes max (receive, transmit) 'ii', ISDN bytes received 'io', ISDN bytes sent 'it', ISDN bytes total (received+send) 'im', ISDN bytes max (received, send) 'ic', ISDN connected (0=offline, 1=online) 'ti', PPP bytes received 'to', PPP bytes sent 'tt', PPP bytes total (received+send) 'tm', PPP bytes max (received, send) 's1', temperature of sensor 1 's2', temperature of sensor 2 (up to s9) 'bp', battery percentage (APM by now) 'bs', battery status ('=' = online, '+' = charging, '-' discharging) 'bd', battery duration in s{econds}, m{ins}, h{ours} or d{ays} 'e*', mails in mailbox 1-9, 'x*', output of command 1-9 Please have a look at lcd4linux.conf.sample, where you can find examples of all options.


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