baycom(9) [debian man page]

BAYCOM(9)						      Kernel Reference Guide							 BAYCOM(9)

NAME

       baycom - amateur (AX.25) packet radio network driver for baycom modems

SYNOPSIS

       #include <linux/baycom.h>
       #include <linux/hdlcdrv.h>

DESCRIPTION

       The driver currently supports three different modems: ser12, par96 and par97.

   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).

   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.

   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.

IOCTL CALLS

       The ioctl calls follow the implementation in the hdlcdrv.

       BAYCOMCTL_GETMODEMTYPE
	      returns the modem type (i.e. ser12 or par96) and the options in effect (currently only the source of the DCD signal)

       BAYCOMCTL_SETMODEMTYPE
	      sets the modem type and the options. Only superuser can do this.

       BAYCOMCTL_GETDEBUG
	      return some debugging values. Not always available.

SEE ALSO

       baycom (9), soundmodem (9), linux/drivers/net/hdlcdrv.c,

AUTHOR

       baycom was written by Thomas Sailer, HB9JNX/AE4WA, (t.sailer@alumni.ethz.ch).

Linux 2.1.x							  2 October 1996							 BAYCOM(9)

BAYCOMEPP(8)						   Linux AX.25 Utilities Manual 					      BAYCOMEPP(8)

NAME

       baycomepp - Baycom EPP modem driver

SYNOPSIS

       baycomepp  [  -lknvcaz  ]  [-p portaddr] [-m modestr] [--epp] [--ecp] [--eppconv] [--eppafsk] [--ifname name] [--hwaddr callsign] [--ipaddr
       ipaddress] [--netmask netmask] [--broadcast broadcast]

DESCRIPTION

       baycomepp is a user mode driver for the Baycom EPP modem family. It currently supports the conventional EPP  modem  (using  the	IDT  72xxx
       FIFO's) and the FPGA (Xilinx XCS10) variant. The driver automatically initializes the FPGA modem depending on the requested mode.  In order
       to keep the resident memory footprint small (approx 20kBytes plus standard system shared libraries like libc), the initialization  code	is
       contained  in  a shared library called baycomfpga_init.so .  This driver is able to automatically attach itself to the kernel network stack
       as a network interface (usually called ax0). To do this it requires the Linux Kernel MKISS driver (enable CONFIG_MKISS).

OPTIONS

       baycomepp accepts the following options:

       -h     --help Display an overview of the available command line parameters and exit.

       -v     --verbose Increases the verbosity of the output. May be cumulated.

       -p     --port Specifies the base address of the EPP capable parallel port to which the modem is connected. Use the  0x  prefix  to  specify
	      hexadecimal numbers.

       -m     --mode Specifies various ``firmware'' options.

       -n     --no-daemon Do not start up in background as a daemon. Also log received and transmitted packets to stdout.

       -l     --log Log to syslog.

       -k     --kill Kill running baycomepp daemons. Don't start the driver proper.

       --epp  Start up in EPP FSK mode. Requires the FPGA version.

       --eppafsk
	      Start up in EPP AFSK mode. Requires the FPGA version.

       --ecp  Start up in ECP FSK mode. Requires the FPGA version.

       --eppconv
	      Start up in conventional EPP FSK mode. Requires the conventional version.

       --ifname
	      Set the name of the interface (requires Linux 2.2.x)

       --hwaddr
	      Set the hardware address (callsign) of the interface

       --ipaddr
	      Set the ip address of the interface

       --netmask
	      Set the netmask of the interface

       --broadcast
	      Set the broadcast address of the interface

FIRMWARE OPTIONS

       intclk uses FPGA internal clock; don't use if an external oscillator is on board.

       extclk uses  the  external  oscillator;	recommended if the internal modem is used, as the frequency of the FPGA oscillator is not accurate
	      enough.

       intmodem
	      uses the internal modem

       extmodem
	      uses a DF9IC type modem connected to the high speed modem connector

       divider=x
	      sets the clock divider for the internal modem (baud=fquartz/16/divider)

       loopback
	      sets an internal modem loopback

       extstat
	      allows extended status readback

       noextstat
	      disallows extended status readback

SEE ALSO

       ifconfig (8), sethdlc (8),

AUTHOR

       baycomepp was written by Thomas Sailer, HB9JNX/AE4WA (sailer@ife.ee.ethz.ch).

BaycomEPP 0.2							    13 May 1998 						      BAYCOMEPP(8)