home *** CD-ROM | disk | FTP | other *** search
-
- _
-
- GTEK BBS-550 with Linux mini-HOWTO _
-
- by Wajihuddin Ahmed <wahmed@sdnp.org.pk>
-
- v1.1, 20 August 1997
-
-
- _________________________________________________________________
-
- _
-
- GTEK's BBS-550 is a 8-port serial card with 16C550 UARTS. Only one IRQ
- can be used for all 8 ports. It does not require any driver on Linux
- therefore the kernel does not have to be recompiled but the kernel
- should have serial support. _
-
-
- _________________________________________________________________
-
-
-
- 1. What I/O addresses to use?
- 2. The rc.serial file and IRQ selection
- 3. Setup of uugetty
- 4. Final checking...
-
-
- _________________________________________________________________
-
-
-
- 1. For detailed information of configuring serial ports on Linux refer
- to the Serial-HOWTO. Thats where I started from.
-
- I have setup the BBS-550 to use I/O address from 0x100 to 0x140 on my
- Linux box (Slackware 2.3, kernel 1.3.93). The main reason being that
- the above _address space was vacant_ in my computer. Page 4 of the
- manual gives the jumper settings. Also this range of I/O addresses is
- seldom used by any other hardware. Just to make sure that this space
- is available on your machine, use the IOMAP.EXE utility which is on
- the GTEK floppy disk.
-
-
- _________________________________________________________________
-
-
-
- 2. After you have installed the card on your computer _you need to
- configure the serial ports_. This is quite easy since the rc.serial
- file already has entries for BOCA 8 port card which can be used for
- the GTEK. Here is my rc.serial file. _Don't forget_ to execute it from
- the rc.S file by uncommenting the line that executes it.
-
- --
-
- #!/bin/sh
- # /etc/rc.serial
- # Initializes the serial ports on your system
- # Version 2.01
- cd /dev
- SETSERIAL="/bin/setserial -a"
- PORTS=`echo cua? cua??`
- echo -n "Configuring serial ports...."
- # Do wild interrupt detection
- #
- #${SETSERIAL} -W ${PORTS}
- # Do AUTOMATIC_IRQ probing
- #
- #AUTO_IRQ=auto_irq
- ${SETSERIAL} /dev/cua16 uart 16550A port 0x100 irq 5
- ${SETSERIAL} /dev/cua17 uart 16550A port 0x108 irq 5
- ${SETSERIAL} /dev/cua18 uart 16550A port 0x110 irq 5
- ${SETSERIAL} /dev/cua19 uart 16550A port 0x118 irq 5
- ${SETSERIAL} /dev/cua20 uart 16550A port 0x120 irq 5
- #${SETSERIAL} /dev/cua21 uart 16550A port 0x128 irq 5
- #${SETSERIAL} /dev/cua22 uart 16550A port 0x130 irq 5
- #${SETSERIAL} /dev/cua23 uart 16550A port 0x138 irq 5
- echo "done."
- ${SETSERIAL} -bg ${PORTS}
-
- -- _
-
- Notice that i have used IRQ 5_. Refer to page 6 of the GTEK manual on
- howto set the IRQ.
-
-
- _________________________________________________________________
-
-
-
- 3. I am using uugetty for dial-in's. Here is an extract from my
- /etc/inittab file (sys V).
-
-
-
- s1:45:respawn:/sbin/uugetty ttyS16 38400 vt100
- s2:45:respawn:/sbin/uugetty ttyS17 38400 vt100
- s3:45:respawn:/sbin/uugetty ttyS18 38400 vt100
- s4:45:respawn:/sbin/uugetty ttyS19 38400 vt100
- s5:45:respawn:/sbin/uugetty ttyS20 57600 vt100
- #s6:45:respawn:/sbin/uugetty ttyS21 38400 vt100
- #s7:45:respawn:/sbin/uugetty ttyS22 38400 vt100
- #s8:45:respawn:/sbin/uugetty ttyS23 38400 vt100
-
-
-
- Make sure that you have the corresponding entries in the
- /etc/gettydefs file. Also don't forget to make new uugetty
- configuration files in the /etc/default directory.
-
-
- _________________________________________________________________
-
-
-
- 4. At boot up the kernel _will not_ report the new tty's.
-
- The serial ports are configured when the rc.serial script is run. You
- can see that on the screen during boot up.
-
- ps ax _should show the uugetty connected_. Here is part of my ps
- output.
-
- 18208 ? S 0:00 /sbin/uugetty ttyS18 38400 vt100
- 18247 ? S 0:00 /sbin/uugetty ttyS20 57600 vt100
- 18254 ? S 0:00 /sbin/uugetty ttyS19 38400 vt100
- 18258 ? S 0:00 /sbin/uugetty ttyS17 38400 vt100
- 18260 ? S 0:00 /sbin/uugetty ttyS16 38400 vt100
-
- Finally test the board by dialing out (using cuaXX) and then dialing
- in (ttySXX).
-
- Good Luck!
-