1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
589 lines
20 KiB
Plaintext
589 lines
20 KiB
Plaintext
NOTE: This is an unmaintained driver. It is not guaranteed to work due to
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changes made in the tty layer in 2.6. If you wish to take over maintenance of
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this driver, contact Michael Warfield <mhw@wittsend.com>.
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Changelog:
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----------
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11-01-2001: Original Document
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10-29-2004: Minor misspelling & format fix, update status of driver.
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James Nelson <james4765@gmail.com>
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Computone Intelliport II/Plus Multiport Serial Driver
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-----------------------------------------------------
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Release Notes For Linux Kernel 2.2 and higher.
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These notes are for the drivers which have already been integrated into the
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kernel and have been tested on Linux kernels 2.0, 2.2, 2.3, and 2.4.
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Version: 1.2.14
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Date: 11/01/2001
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Historical Author: Andrew Manison <amanison@america.net>
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Primary Author: Doug McNash
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Support: support@computone.com
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Fixes and Updates: Mike Warfield <mhw@wittsend.com>
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This file assumes that you are using the Computone drivers which are
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integrated into the kernel sources. For updating the drivers or installing
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drivers into kernels which do not already have Computone drivers, please
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refer to the instructions in the README.computone file in the driver patch.
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1. INTRODUCTION
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This driver supports the entire family of Intelliport II/Plus controllers
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with the exception of the MicroChannel controllers. It does not support
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products previous to the Intelliport II.
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This driver was developed on the v2.0.x Linux tree and has been tested up
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to v2.4.14; it will probably not work with earlier v1.X kernels,.
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2. QUICK INSTALLATION
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Hardware - If you have an ISA card, find a free interrupt and io port.
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List those in use with `cat /proc/interrupts` and
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`cat /proc/ioports`. Set the card dip switches to a free
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address. You may need to configure your BIOS to reserve an
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irq for an ISA card. PCI and EISA parameters are set
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automagically. Insert card into computer with the power off
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before or after drivers installation.
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Note the hardware address from the Computone ISA cards installed into
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the system. These are required for editing ip2.c or editing
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/etc/modprobe.conf, or for specification on the modprobe
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command line.
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Note that the /etc/modules.conf should be used for older (pre-2.6)
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kernels.
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Software -
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Module installation:
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a) Determine free irq/address to use if any (configure BIOS if need be)
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b) Run "make config" or "make menuconfig" or "make xconfig"
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Select (m) module for CONFIG_COMPUTONE under character
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devices. CONFIG_PCI and CONFIG_MODULES also may need to be set.
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c) Set address on ISA cards then:
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edit /usr/src/linux/drivers/char/ip2.c if needed
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or
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edit /etc/modprobe.conf if needed (module).
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or both to match this setting.
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d) Run "make modules"
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e) Run "make modules_install"
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f) Run "/sbin/depmod -a"
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g) install driver using `modprobe ip2 <options>` (options listed below)
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h) run ip2mkdev (either the script below or the binary version)
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Kernel installation:
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a) Determine free irq/address to use if any (configure BIOS if need be)
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b) Run "make config" or "make menuconfig" or "make xconfig"
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Select (y) kernel for CONFIG_COMPUTONE under character
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devices. CONFIG_PCI may need to be set if you have PCI bus.
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c) Set address on ISA cards then:
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edit /usr/src/linux/drivers/char/ip2.c
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(Optional - may be specified on kernel command line now)
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d) Run "make zImage" or whatever target you prefer.
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e) mv /usr/src/linux/arch/i386/boot/zImage to /boot.
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f) Add new config for this kernel into /etc/lilo.conf, run "lilo"
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or copy to a floppy disk and boot from that floppy disk.
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g) Reboot using this kernel
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h) run ip2mkdev (either the script below or the binary version)
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Kernel command line options:
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When compiling the driver into the kernel, io and irq may be
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compiled into the driver by editing ip2.c and setting the values for
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io and irq in the appropriate array. An alternative is to specify
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a command line parameter to the kernel at boot up.
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ip2=io0,irq0,io1,irq1,io2,irq2,io3,irq3
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Note that this order is very different from the specifications for the
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modload parameters which have separate IRQ and IO specifiers.
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The io port also selects PCI (1) and EISA (2) boards.
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io=0 No board
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io=1 PCI board
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io=2 EISA board
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else ISA board io address
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You only need to specify the boards which are present.
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Examples:
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2 PCI boards:
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ip2=1,0,1,0
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1 ISA board at 0x310 irq 5:
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ip2=0x310,5
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This can be added to and "append" option in lilo.conf similar to this:
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append="ip2=1,0,1,0"
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3. INSTALLATION
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Previously, the driver sources were packaged with a set of patch files
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to update the character drivers' makefile and configuration file, and other
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kernel source files. A build script (ip2build) was included which applies
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the patches if needed, and build any utilities needed.
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What you receive may be a single patch file in conventional kernel
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patch format build script. That form can also be applied by
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running patch -p1 < ThePatchFile. Otherwise run ip2build.
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The driver can be installed as a module (recommended) or built into the
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kernel. This is selected as for other drivers through the `make config`
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command from the root of the Linux source tree. If the driver is built
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into the kernel you will need to edit the file ip2.c to match the boards
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you are installing. See that file for instructions. If the driver is
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installed as a module the configuration can also be specified on the
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modprobe command line as follows:
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modprobe ip2 irq=irq1,irq2,irq3,irq4 io=addr1,addr2,addr3,addr4
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where irqnum is one of the valid Intelliport II interrupts (3,4,5,7,10,11,
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12,15) and addr1-4 are the base addresses for up to four controllers. If
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the irqs are not specified the driver uses the default in ip2.c (which
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selects polled mode). If no base addresses are specified the defaults in
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ip2.c are used. If you are autoloading the driver module with kerneld or
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kmod the base addresses and interrupt number must also be set in ip2.c
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and recompile or just insert and options line in /etc/modprobe.conf or both.
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The options line is equivalent to the command line and takes precedence over
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what is in ip2.c.
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/etc/modprobe.conf sample:
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options ip2 io=1,0x328 irq=1,10
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alias char-major-71 ip2
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alias char-major-72 ip2
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alias char-major-73 ip2
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The equivalent in ip2.c:
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static int io[IP2_MAX_BOARDS]= { 1, 0x328, 0, 0 };
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static int irq[IP2_MAX_BOARDS] = { 1, 10, -1, -1 };
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The equivalent for the kernel command line (in lilo.conf):
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append="ip2=1,1,0x328,10"
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Note: Both io and irq should be updated to reflect YOUR system. An "io"
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address of 1 or 2 indicates a PCI or EISA card in the board table.
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The PCI or EISA irq will be assigned automatically.
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Specifying an invalid or in-use irq will default the driver into
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running in polled mode for that card. If all irq entries are 0 then
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all cards will operate in polled mode.
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If you select the driver as part of the kernel run :
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make zlilo (or whatever you do to create a bootable kernel)
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If you selected a module run :
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make modules && make modules_install
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The utility ip2mkdev (see 5 and 7 below) creates all the device nodes
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required by the driver. For a device to be created it must be configured
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in the driver and the board must be installed. Only devices corresponding
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to real IntelliPort II ports are created. With multiple boards and expansion
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boxes this will leave gaps in the sequence of device names. ip2mkdev uses
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Linux tty naming conventions: ttyF0 - ttyF255 for normal devices, and
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cuf0 - cuf255 for callout devices.
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If you are using devfs, existing devices are automatically created within
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the devfs name space. Normal devices will be tts/F0 - tts/F255 and callout
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devices will be cua/F0 - cua/F255. With devfs installed, ip2mkdev will
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create symbolic links in /dev from the old conventional names to the newer
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devfs names as follows:
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/dev/ip2ipl[n] -> /dev/ip2/ipl[n] n = 0 - 3
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/dev/ip2stat[n] -> /dev/ip2/stat[n] n = 0 - 3
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/dev/ttyF[n] -> /dev/tts/F[n] n = 0 - 255
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/dev/cuf[n] -> /dev/cua/F[n] n = 0 - 255
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Only devices for existing ports and boards will be created.
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IMPORTANT NOTE: The naming convention used for devfs by this driver
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was changed from 1.2.12 to 1.2.13. The old naming convention was to
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use ttf/%d for the tty device and cuf/%d for the cua device. That
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has been changed to conform to an agreed-upon standard of placing
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all the tty devices under tts. The device names are now tts/F%d for
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the tty device and cua/F%d for the cua devices. If you were using
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the older devfs names, you must update for the newer convention.
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You do not need to run ip2mkdev if you are using devfs and only want to
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use the devfs native device names.
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4. USING THE DRIVERS
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As noted above, the driver implements the ports in accordance with Linux
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conventions, and the devices should be interchangeable with the standard
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serial devices. (This is a key point for problem reporting: please make
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sure that what you are trying do works on the ttySx/cuax ports first; then
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tell us what went wrong with the ip2 ports!)
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Higher speeds can be obtained using the setserial utility which remaps
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38,400 bps (extb) to 57,600 bps, 115,200 bps, or a custom speed.
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Intelliport II installations using the PowerPort expansion module can
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use the custom speed setting to select the highest speeds: 153,600 bps,
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230,400 bps, 307,200 bps, 460,800bps and 921,600 bps. The base for
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custom baud rate configuration is fixed at 921,600 for cards/expansion
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modules with ST654's and 115200 for those with Cirrus CD1400's. This
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corresponds to the maximum bit rates those chips are capable.
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For example if the baud base is 921600 and the baud divisor is 18 then
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the custom rate is 921600/18 = 51200 bps. See the setserial man page for
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complete details. Of course if stty accepts the higher rates now you can
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use that as well as the standard ioctls().
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5. ip2mkdev and assorted utilities...
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Several utilities, including the source for a binary ip2mkdev utility are
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available under .../drivers/char/ip2. These can be build by changing to
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that directory and typing "make" after the kernel has be built. If you do
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not wish to compile the binary utilities, the shell script below can be
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cut out and run as "ip2mkdev" to create the necessary device files. To
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use the ip2mkdev script, you must have procfs enabled and the proc file
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system mounted on /proc.
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You do not need to run ip2mkdev if you are using devfs and only want to
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use the devfs native device names.
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6. DEVFS
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DEVFS is the DEVice File System available as an add on package for the
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2.2.x kernels and available as a configuration option in 2.3.46 and higher.
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Devfs allows for the automatic creation and management of device names
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under control of the device drivers themselves. The Devfs namespace is
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hierarchical and reduces the clutter present in the normal flat /dev
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namespace. Devfs names and conventional device names may be intermixed.
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A userspace daemon, devfsd, exists to allow for automatic creation and
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management of symbolic links from the devfs name space to the conventional
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names. More details on devfs can be found on the DEVFS home site at
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<http://www.atnf.csiro.au/~rgooch/linux/> or in the file kernel
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documentation files, .../linux/Documentation/filesystems/devfs/README.
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If you are using devfs, existing devices are automatically created within
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the devfs name space. Normal devices will be tts/F0 - tts/F255 and callout
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devices will be cua/F0 - cua/F255. With devfs installed, ip2mkdev will
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create symbolic links in /dev from the old conventional names to the newer
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devfs names as follows:
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/dev/ip2ipl[n] -> /dev/ip2/ipl[n] n = 0 - 3
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/dev/ip2stat[n] -> /dev/ip2/stat[n] n = 0 - 3
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/dev/ttyF[n] -> /dev/tts/F[n] n = 0 - 255
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/dev/cuf[n] -> /dev/cua/F[n] n = 0 - 255
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Only devices for existing ports and boards will be created.
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IMPORTANT NOTE: The naming convention used for devfs by this driver
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was changed from 1.2.12 to 1.2.13. The old naming convention was to
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use ttf/%d for the tty device and cuf/%d for the cua device. That
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has been changed to conform to an agreed-upon standard of placing
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all the tty devices under tts. The device names are now tts/F%d for
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the tty device and cua/F%d for the cua devices. If you were using
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the older devfs names, you must update for the newer convention.
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You do not need to run ip2mkdev if you are using devfs and only want to
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use the devfs native device names.
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7. NOTES
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This is a release version of the driver, but it is impossible to test it
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in all configurations of Linux. If there is any anomalous behaviour that
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does not match the standard serial port's behaviour please let us know.
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8. ip2mkdev shell script
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Previously, this script was simply attached here. It is now attached as a
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shar archive to make it easier to extract the script from the documentation.
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To create the ip2mkdev shell script change to a convenient directory (/tmp
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works just fine) and run the following command:
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unshar Documentation/computone.txt
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(This file)
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You should now have a file ip2mkdev in your current working directory with
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permissions set to execute. Running that script with then create the
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necessary devices for the Computone boards, interfaces, and ports which
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are present on you system at the time it is run.
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#!/bin/sh
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# This is a shell archive (produced by GNU sharutils 4.2.1).
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# To extract the files from this archive, save it to some FILE, remove
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# everything before the `!/bin/sh' line above, then type `sh FILE'.
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#
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# Made on 2001-10-29 10:32 EST by <mhw@alcove.wittsend.com>.
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# Source directory was `/home2/src/tmp'.
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#
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# Existing files will *not* be overwritten unless `-c' is specified.
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#
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# This shar contains:
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# length mode name
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# ------ ---------- ------------------------------------------
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# 4251 -rwxr-xr-x ip2mkdev
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#
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save_IFS="${IFS}"
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IFS="${IFS}:"
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gettext_dir=FAILED
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locale_dir=FAILED
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first_param="$1"
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for dir in $PATH
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do
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if test "$gettext_dir" = FAILED && test -f $dir/gettext \
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&& ($dir/gettext --version >/dev/null 2>&1)
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then
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set `$dir/gettext --version 2>&1`
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if test "$3" = GNU
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then
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gettext_dir=$dir
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fi
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fi
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if test "$locale_dir" = FAILED && test -f $dir/shar \
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&& ($dir/shar --print-text-domain-dir >/dev/null 2>&1)
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then
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locale_dir=`$dir/shar --print-text-domain-dir`
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fi
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done
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IFS="$save_IFS"
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if test "$locale_dir" = FAILED || test "$gettext_dir" = FAILED
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then
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echo=echo
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else
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TEXTDOMAINDIR=$locale_dir
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export TEXTDOMAINDIR
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TEXTDOMAIN=sharutils
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export TEXTDOMAIN
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echo="$gettext_dir/gettext -s"
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fi
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if touch -am -t 200112312359.59 $$.touch >/dev/null 2>&1 && test ! -f 200112312359.59 -a -f $$.touch; then
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shar_touch='touch -am -t $1$2$3$4$5$6.$7 "$8"'
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elif touch -am 123123592001.59 $$.touch >/dev/null 2>&1 && test ! -f 123123592001.59 -a ! -f 123123592001.5 -a -f $$.touch; then
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shar_touch='touch -am $3$4$5$6$1$2.$7 "$8"'
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elif touch -am 1231235901 $$.touch >/dev/null 2>&1 && test ! -f 1231235901 -a -f $$.touch; then
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shar_touch='touch -am $3$4$5$6$2 "$8"'
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else
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shar_touch=:
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echo
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$echo 'WARNING: not restoring timestamps. Consider getting and'
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$echo "installing GNU \`touch', distributed in GNU File Utilities..."
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echo
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fi
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rm -f 200112312359.59 123123592001.59 123123592001.5 1231235901 $$.touch
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#
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if mkdir _sh17581; then
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$echo 'x -' 'creating lock directory'
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else
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$echo 'failed to create lock directory'
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exit 1
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fi
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# ============= ip2mkdev ==============
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if test -f 'ip2mkdev' && test "$first_param" != -c; then
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$echo 'x -' SKIPPING 'ip2mkdev' '(file already exists)'
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else
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$echo 'x -' extracting 'ip2mkdev' '(text)'
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sed 's/^X//' << 'SHAR_EOF' > 'ip2mkdev' &&
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#!/bin/sh -
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#
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# ip2mkdev
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#
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# Make or remove devices as needed for Computone Intelliport drivers
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#
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# First rule! If the dev file exists and you need it, don't mess
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# with it. That prevents us from screwing up open ttys, ownership
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# and permissions on a running system!
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#
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# This script will NOT remove devices that no longer exist if their
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# board or interface box has been removed. If you want to get rid
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# of them, you can manually do an "rm -f /dev/ttyF* /dev/cuaf*"
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# before running this script. Running this script will then recreate
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# all the valid devices.
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#
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# Michael H. Warfield
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# /\/\|=mhw=|\/\/
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# mhw@wittsend.com
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#
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# Updated 10/29/2000 for version 1.2.13 naming convention
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# under devfs. /\/\|=mhw=|\/\/
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#
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# Updated 03/09/2000 for devfs support in ip2 drivers. /\/\|=mhw=|\/\/
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#
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X
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if test -d /dev/ip2 ; then
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# This is devfs mode... We don't do anything except create symlinks
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# from the real devices to the old names!
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X cd /dev
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X echo "Creating symbolic links to devfs devices"
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X for i in `ls ip2` ; do
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X if test ! -L ip2$i ; then
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X # Remove it incase it wasn't a symlink (old device)
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X rm -f ip2$i
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X ln -s ip2/$i ip2$i
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X fi
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X done
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X for i in `( cd tts ; ls F* )` ; do
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X if test ! -L tty$i ; then
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X # Remove it incase it wasn't a symlink (old device)
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X rm -f tty$i
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X ln -s tts/$i tty$i
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X fi
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X done
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X for i in `( cd cua ; ls F* )` ; do
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X DEVNUMBER=`expr $i : 'F\(.*\)'`
|
|
X if test ! -L cuf$DEVNUMBER ; then
|
|
X # Remove it incase it wasn't a symlink (old device)
|
|
X rm -f cuf$DEVNUMBER
|
|
X ln -s cua/$i cuf$DEVNUMBER
|
|
X fi
|
|
X done
|
|
X exit 0
|
|
fi
|
|
X
|
|
if test ! -f /proc/tty/drivers
|
|
then
|
|
X echo "\
|
|
Unable to check driver status.
|
|
Make sure proc file system is mounted."
|
|
X
|
|
X exit 255
|
|
fi
|
|
X
|
|
if test ! -f /proc/tty/driver/ip2
|
|
then
|
|
X echo "\
|
|
Unable to locate ip2 proc file.
|
|
Attempting to load driver"
|
|
X
|
|
X if /sbin/insmod ip2
|
|
X then
|
|
X if test ! -f /proc/tty/driver/ip2
|
|
X then
|
|
X echo "\
|
|
Unable to locate ip2 proc file after loading driver.
|
|
Driver initialization failure or driver version error.
|
|
"
|
|
X exit 255
|
|
X fi
|
|
X else
|
|
X echo "Unable to load ip2 driver."
|
|
X exit 255
|
|
X fi
|
|
fi
|
|
X
|
|
# Ok... So we got the driver loaded and we can locate the procfs files.
|
|
# Next we need our major numbers.
|
|
X
|
|
TTYMAJOR=`sed -e '/^ip2/!d' -e '/\/dev\/tt/!d' -e 's/.*tt[^ ]*[ ]*\([0-9]*\)[ ]*.*/\1/' < /proc/tty/drivers`
|
|
CUAMAJOR=`sed -e '/^ip2/!d' -e '/\/dev\/cu/!d' -e 's/.*cu[^ ]*[ ]*\([0-9]*\)[ ]*.*/\1/' < /proc/tty/drivers`
|
|
BRDMAJOR=`sed -e '/^Driver: /!d' -e 's/.*IMajor=\([0-9]*\)[ ]*.*/\1/' < /proc/tty/driver/ip2`
|
|
X
|
|
echo "\
|
|
TTYMAJOR = $TTYMAJOR
|
|
CUAMAJOR = $CUAMAJOR
|
|
BRDMAJOR = $BRDMAJOR
|
|
"
|
|
X
|
|
# Ok... Now we should know our major numbers, if appropriate...
|
|
# Now we need our boards and start the device loops.
|
|
X
|
|
grep '^Board [0-9]:' /proc/tty/driver/ip2 | while read token number type alltherest
|
|
do
|
|
X # The test for blank "type" will catch the stats lead-in lines
|
|
X # if they exist in the file
|
|
X if test "$type" = "vacant" -o "$type" = "Vacant" -o "$type" = ""
|
|
X then
|
|
X continue
|
|
X fi
|
|
X
|
|
X BOARDNO=`expr "$number" : '\([0-9]\):'`
|
|
X PORTS=`expr "$alltherest" : '.*ports=\([0-9]*\)' | tr ',' ' '`
|
|
X MINORS=`expr "$alltherest" : '.*minors=\([0-9,]*\)' | tr ',' ' '`
|
|
X
|
|
X if test "$BOARDNO" = "" -o "$PORTS" = ""
|
|
X then
|
|
# This may be a bug. We should at least get this much information
|
|
X echo "Unable to process board line"
|
|
X continue
|
|
X fi
|
|
X
|
|
X if test "$MINORS" = ""
|
|
X then
|
|
# Silently skip this one. This board seems to have no boxes
|
|
X continue
|
|
X fi
|
|
X
|
|
X echo "board $BOARDNO: $type ports = $PORTS; port numbers = $MINORS"
|
|
X
|
|
X if test "$BRDMAJOR" != ""
|
|
X then
|
|
X BRDMINOR=`expr $BOARDNO \* 4`
|
|
X STSMINOR=`expr $BRDMINOR + 1`
|
|
X if test ! -c /dev/ip2ipl$BOARDNO ; then
|
|
X mknod /dev/ip2ipl$BOARDNO c $BRDMAJOR $BRDMINOR
|
|
X fi
|
|
X if test ! -c /dev/ip2stat$BOARDNO ; then
|
|
X mknod /dev/ip2stat$BOARDNO c $BRDMAJOR $STSMINOR
|
|
X fi
|
|
X fi
|
|
X
|
|
X if test "$TTYMAJOR" != ""
|
|
X then
|
|
X PORTNO=$BOARDBASE
|
|
X
|
|
X for PORTNO in $MINORS
|
|
X do
|
|
X if test ! -c /dev/ttyF$PORTNO ; then
|
|
X # We got the hardware but no device - make it
|
|
X mknod /dev/ttyF$PORTNO c $TTYMAJOR $PORTNO
|
|
X fi
|
|
X done
|
|
X fi
|
|
X
|
|
X if test "$CUAMAJOR" != ""
|
|
X then
|
|
X PORTNO=$BOARDBASE
|
|
X
|
|
X for PORTNO in $MINORS
|
|
X do
|
|
X if test ! -c /dev/cuf$PORTNO ; then
|
|
X # We got the hardware but no device - make it
|
|
X mknod /dev/cuf$PORTNO c $CUAMAJOR $PORTNO
|
|
X fi
|
|
X done
|
|
X fi
|
|
done
|
|
X
|
|
Xexit 0
|
|
SHAR_EOF
|
|
(set 20 01 10 29 10 32 01 'ip2mkdev'; eval "$shar_touch") &&
|
|
chmod 0755 'ip2mkdev' ||
|
|
$echo 'restore of' 'ip2mkdev' 'failed'
|
|
if ( md5sum --help 2>&1 | grep 'sage: md5sum \[' ) >/dev/null 2>&1 \
|
|
&& ( md5sum --version 2>&1 | grep -v 'textutils 1.12' ) >/dev/null; then
|
|
md5sum -c << SHAR_EOF >/dev/null 2>&1 \
|
|
|| $echo 'ip2mkdev:' 'MD5 check failed'
|
|
cb5717134509f38bad9fde6b1f79b4a4 ip2mkdev
|
|
SHAR_EOF
|
|
else
|
|
shar_count="`LC_ALL= LC_CTYPE= LANG= wc -c < 'ip2mkdev'`"
|
|
test 4251 -eq "$shar_count" ||
|
|
$echo 'ip2mkdev:' 'original size' '4251,' 'current size' "$shar_count!"
|
|
fi
|
|
fi
|
|
rm -fr _sh17581
|
|
exit 0
|