--- name: "blinkd" section: "1" platform: "linux" package: "blinkd" version: "0.1-2" release: "Debian 2.1 (Slink)" platforms: ["linux"] url: "https://new.carta.tech/blinkd" --- # blinkd(1) Blinks keyboard LEDs for various purposes. ## NAME blinkd, blink - Blinks keyboard LEDs for various purposes. ## SYNOPSIS **blinkd** \[ **options** \]\ **blink** \[ **options** \] ## DESCRIPTION These programs help you monitor things like incoming calls on your voice box or incoming faxes. E.g. they blink Scroll-Lock LED for incoming voice calls and Num-Lock LED for incoming faxes. Normally, two daemons are started, one for the Scroll-Lock LED, and one for the Num-Lock LED. The program blink will ask the server to blink the specified LED with the given rate. ## USAGE On Debian GNU/Linux blinkd is started with the --both-leds option from /etc/init.d/blinkd, unless the system administrator changed this. If you like to count something, e.g. incoming calls on your voice mailbox, incoming faxes in your spool or whatever, just write a script, that calls - blink --rate n for the first thing you like to count and - blink --second --rate m for the second thing you like to count. n and m are the current numbers of things you like to count. The first blink refers to the Scroll-Lock LED, the second one refers to the Num-Lock LED. ## BLINK OPTIONS - \-2 --second If two blinkd processes are running, contact the second one. The second blinkd process handles the Num-Lock LED, while the first one takes care of the Scroll-Lock LED. - \-h --help Gives a short help on the command line options and exit. - \-r n --rate=n Sets the blink rate to the given value *n.* - \-t n --tcp-port=n Use the tcp port *n* on that the blinkd server waits. - \-v --version Give a short version information and exit. - \-w s --password=s This option does not work yet. It will be used later for restricting the access to those using the same password as the one that blinkd uses. ## BLINKD OPTIONS - \-b --both-leds Start two entities of the blinkd server, one for the Scroll-Lock, and one for the Num-Lock LED. The second blinkd daemon uses the tcp port one above the first process. - \-f t --off-time=t Set the off blink time to the value t. The unit is one tenth of a second. - \-h --help Gives a short help on the command line options and exit. - \-n --numlockled If only one blinkd daemon is started, it defaults to handle the Scroll-Lock LED. This option overrides the default. - \-o t --on-time=t Set the on blink time to the value t. The unit is one tenth of a second. - \-p t --pause=t Set the pause time between blinking to the value t. The unit is one tenth of a second. - \-r n --rate=n Start the blinkd daemon with the given blinking rate. - \-s --scrolllockled If only one blinkd daemon is started, it defaults to handle the Scroll-Lock LED. So this option is not really necessary. - \-t n --tcp-port=n Use the tcp port n. If two blinkd daemons are started using the --both-leds options, the tcp port n+1 also will be used. - \-v --version Give a short version information and exit. - \-w s --password=s This option does not work yet. It will be used later for restricting the access, so that the blink user has to use the same password as this. ## FILES /etc/init.d/blinkd starts and stops the blinkd daemon. ## EXAMPLES An example for the use of blinkd with the vbox program (an ISDN answering machine) is provided in */usr/doc/blinkd/examples/standard.tcl.* Another example for use with the mgetty fax program is provided in */usr/doc/blinkd/examples/new\_fax.* ## AUTHOR blinkd and blink are made by W. Borgert \. ## THANKS All important code is stolen from tleds and xtleds, made by Jouni Lohikoski \, only the bugs are mine alone. Paul Slootman \ built the utility on Debian GNU/Linux alpha and corrected some of my typos. ## COPYRIGHT Copyright 1998 W. Borgert and released under GNU General Public License (GPL). ## BUGS There is no security! The password mechanism is not yet there. Anyone can fake anything. OK, nobody wants to, but you've been warned. Server and client have to be on the same host. This will be changed really soon, because I need blinkd and blink on different machines at home. These programs seem to run at least on Debian GNU/Linux i386 and Debian GNU/Linux alpha. Please send me a mail, if it does or does not run on other platforms. People, especially from the UK, will find grammar and spelling errors. Please correct me! ## DATE Version 0.1 released on 1998-09-24 or so.