.\" Hey, EMACS: -*- nroff -*- .\" First parameter, NAME, should be all caps .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection .\" other parameters are allowed: see man(7), man(1) .TH ROTCTLD "8" "January 14, 2009" "Hamlib" "Rotator Control Daemon" .\" Please adjust this date whenever revising the manpage. .\" .\" Some roff macros, for reference: .\" .nh disable hyphenation .\" .hy enable hyphenation .\" .ad l left justify .\" .ad b justify to both left and right margins .\" .nf disable filling .\" .fi enable filling .\" .br insert line break .\" .sp insert n+1 empty lines .\" for manpage-specific macros, see man(7) .SH NAME rotctld \- Hamlib rotator control daemon .SH SYNOPSIS .B rotctld [\fIOPTION\fR]... .SH DESCRIPTION The \fBrotctld\fP program is an EXPERIMENTAL \fBHamlib\fP rotator daemon that handles TCP client requests. This allows multiple user programs to share one rotator. Multiple rotators can be controlled on different TCP ports. The syntax of the commands are the same as \fBrotctl\fP. It is hoped that \fBrotctld\fP will be especially useful for languages such as Perl, Python, and others. .PP .\" TeX users may be more comfortable with the \fB\fP and .\" \fI\fP escape sequences to invoke bold face and italics, .\" respectively. \fBrotctld\fP communicates to a client through a TCP socket using text commands shared with \fBrotctl\fP. The protocol is simple, commands are sent to \fBrotctld\fP on one line and \fBrotctld\fP responds to "get" commands with the requested values, one per line, when successful, otherwise, it responds with one line "RPTR x", where x is a negative number indicating the error code. Commands that do not return values respond with the line "RPTR x", where x is zero when successful, otherwise is a regative number indicating the error code. Each line is terminated with a newline '\\n' character. .PP Keep in mind that \fBHamlib\fP is BETA level software. While a lot of backend libraries lack complete rotator support, the basic functions are usually well supported. The API may change without publicized notice, while an advancement of the minor version (e.g. 1.1.x to 1.2.x) indicates such a change. .PP Please report bugs and provide feedback at the e-mail address given in the REPORTING BUGS section. Patches and code enhancements are also welcome. .SH OPTIONS This program follows the usual GNU command line syntax, with long options starting with two dashes ('-'). Here is a summary of the supported options: .TP .B \-m, --model=id Select rotator model number. See -l, "list" option below. .TP .B \-r, --rot-file=device Use \fIdevice\fP as the file name of the port the rotator is connected. Often a serial port, but could be a USB to serial adapter. Typically /dev/ttyS0, /dev/ttyS1, /dev/ttyUSB0, etc. .TP .B \-s, --serial-speed=baud Set serial speed to \fIbaud\fP rate. Uses maximum serial speed from rotor backend capabilities (set by -m above) as the default. .TP .B \-L, --show-conf List all config parameters for the rotator defined with -m above. .TP .B \-C, --set-conf=parm=val[,parm=val]* Set config parameter. e.g. --set-conf=stop_bits=2 .br Use -L option for a list. .TP .B \-e, --end-marker Use END marker in rotctld protocol. .TP .B \-t, --port=number Use \fInumber\fP as the TCP listening port. The default is 4533. .TP .B \-T, --listen-addr=IPADDR Use \fIIPADDR\fP as the listening IP address. The default is ANY. .TP .B \-l, --list List all model numbers defined in \fBHamlib\fP and exit. .TP .B \-v, --verbose Set verbose mode, cumulative (see DIAGNOSTICS below). .TP .B \-h, --help Show a summary of these options and exit. .TP .B \-V, --version Show the version of \fBrotctld\fP and exit. .PP \fBN.B.\fP Some options may not be implemented by a given backend and will return an error. This is most likely to occur with the \fI\-\-set-conf\fP and \fI\-\-show-conf\fP options. .PP Please note that the backend for the rotator to be controlled, or the rotator itself may not support some commands. In that case, the operation will fail with a \fBHamlib\fP error code. .SH COMMANDS Commands can be sent over the TCP socket either as a single char, or as a long command name plus the value(s) on one '\\n' terminated line. See PROTOCOL. .PP Since most of the \fBHamlib\fP operations have a \fIset\fP and a \fIget\fP method, an upper case letter will be used for \fIset\fP method whereas the corresponding lower case letter refers to the \fIget\fP method. Each operation also has a long name, prepend a backslash to send a long command name. .PP Please note that the backend for the rotator to be controlled, or the rotator itself may not support some commands. In that case, the operation will fail with a \fBHamlib\fP error message. .PP Here is a summary of the supported commands: .TP .B P, set_pos Set position: azimuth and elevation. .TP .B p, get_pos Get position: azimuth and elevation. .TP .B K, park Park the antenna. .TP .B S, stop Stop the rotator. .TP .B R, reset Reset the rotator. .TP .B M, move Move the rotator in a specific direction. .TP .B _, get_info Get misc information about the rotator. .TP .B w, send_cmd Send raw command string to rotator. .br For binary protocols enter values as \\0xAA\\0xBB .SH PROTOCOL The \fBrotctld\fP protocol is intentionally simple. Commands are entered on a single line with any needed values. In Perl, reliable results are obtained by terminating each command string with a newline character, '\\n'. .PP Example \fIset\fP (Perl code): print $socket "P 135 10\\n"; .br print $socket "\\\\set_pos 135 10\\n"; # escape leading '\\' .PP Responses from \fBrotctld\fP are text values and match the same tokens used in the \fIset\fP commands. Each value is returned on its own line. To signal the end of a response the "END\\n" string is sent when the '-e' option is passed. .PP Example \fIget\fP (Perl code): print $socket "p\\n"; "135" .br "10" .br "END" .PP Most \fIget\fP functions return one to three values. Future work will focus on making this output compatible with assignment to a hash, dictionary, or other key:value variable. .SH DIAGNOSTICS The \fB-v\fP, \fB--version\fP option allows different levels of diagnostics to be output to \fBstderr\fP and correspond to -v for BUG, -vv for ERR, -vvv for WARN, -vvvv for VERBOSE, or -vvvvv for TRACE. .PP A given verbose level is useful for providing needed debugging information to the email address below. For example, TRACE output shows all of the values sent to and received from the rotator which is very useful for rotator backend library development and may be requested by the developers. .SH SECURITY No authentication whatsoever; DO NOT leave this TCP port open wide to the Internet. Please ask if stronger security is needed. .SH BUGS The daemon is not detaching and backgrounding itself. Much testing needs to be done. .SH REPORTING BUGS Report bugs to . .br We are already aware of the bugs in the previous section :-) .SH AUTHORS Written by Stephane Fillod and the Hamlib Group .br . .SH COPYRIGHT Copyright \(co 2000-2009 Stephane Fillod and the Hamlib Group. .PP This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. .SH SEE ALSO .BR rotctl (1), .BR hamlib (3)