From 1b4023134b5ff6342301c8135b11df46546d2828 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 7 Jun 1999 10:24:56 +0200 Subject: Import ax25-tools 0.0.2 from tarball --- hdlcutil/baycom.9 | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 hdlcutil/baycom.9 (limited to 'hdlcutil/baycom.9') diff --git a/hdlcutil/baycom.9 b/hdlcutil/baycom.9 new file mode 100644 index 0000000..5e91100 --- /dev/null +++ b/hdlcutil/baycom.9 @@ -0,0 +1,62 @@ +.\" Copyright 1996 Thomas Sailer (sailer@ife.ee.ethz.ch) +.\" May be distributed under the GNU General Public License +.\" " +.TH BAYCOM 9 "2 October 1996" "Linux 2.1.x" "Kernel Reference Guide" +.SH NAME +baycom \- amateur (AX.25) packet radio network driver for baycom modems +.SH SYNOPSIS + +.nf +.B #include +.B #include +.fi + +.SH DESCRIPTION +The driver currently supports three different modems: ser12, par96 and +par97. +.SS ser12 +This is a very simple 1200 baud AFSK modem. The modem consists only +of a modulator/demodulator chip, usually a TI TCM3105. The computer +is responsible for regenerating the receiver bit clock. The modem +connects to a serial port, hence the name. Since the serial port is +not used as an async serial port, the kernel driver for serial ports +cannot be used, and this driver only supports standard serial +hardware (8250, 16450, 16550). +.SS par96 +This is a modem for 9600 baud FSK compatible to the G3RUH standard. +The modem does all the filtering and regenerates the receiver clock. +Data is transferred from and to the PC via a shift register. +The shift register is filled with 16 bits and an interrupt is +signalled. The PC then empties the shift register in a burst. This +modem connects to the parallel port, hence the name. +.SS par97 +This is a redesign of the par96 modem by Henning Rech, DF9IC. The +modem is protocol compatible to par96, but uses only three low +power ICs and can therefore be fed from the parallel port and +does not require an additional power supply. + +.SH "IOCTL CALLS" +The \fBioctl\fP calls follow the implementation in the \fIhdlcdrv\fP. + +.TP +.B BAYCOMCTL_GETMODEMTYPE +returns the modem type (i.e. \fIser12\fP or \fIpar96\fP) and the +options in effect (currently only the source of the DCD signal) +.TP +.B BAYCOMCTL_SETMODEMTYPE +sets the modem type and the options. Only superuser can do this. +.TP +.B BAYCOMCTL_GETDEBUG +return some debugging values. Not always available. + + +.SH "SEE ALSO" +.BR baycom " (9), " soundmodem " (9)," +linux/drivers/net/hdlcdrv.c, + +.SH AUTHOR +baycom was written by Thomas Sailer, HB9JNX/AE4WA, (sailer@ife.ee.ethz.ch). + + + + -- cgit v1.2.3