📄 readme.txt
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3.5.1 Backup the built-in driver in the kernel.
# cd /usr/src/linux/drivers/char
# mv mxser.c mxser.c.old
For Red Hat 7.x user, you need to create link:
# cd /usr/src
# ln -s linux-2.4 linux
3.5.2 Create link
# cd /usr/src/linux/drivers/char
# ln -s /moxa/mxser/driver/mxser.c mxser.c
3.5.3 Add CAP address list for ISA boards. For PCI boards user,
please skip this step.
In module mode, the CAP address for ISA board is given by
parameter. In static driver configuration, you'll have to
assign it within driver's source code. If you will not
install any ISA boards, you may skip to next portion.
The instructions to modify driver source code are as
below.
a. # cd /moxa/mxser/driver
# vi mxser.c
b. Find the array mxserBoardCAP[] as below.
static int mxserBoardCAP[]
= {0x00, 0x00, 0x00, 0x00};
c. Change the address within this array using vi. For
example, to driver 2 ISA boards with CAP address
0x280 and 0x180 as 1st and 2nd board. Just to change
the source code as follows.
static int mxserBoardCAP[]
= {0x280, 0x180, 0x00, 0x00};
3.5.4 Setup kernel configuration
Configure the kernel:
# cd /usr/src/linux
# make menuconfig
You will go into a menu-driven system. Please select [Character
devices][Non-standard serial port support], enable the [Moxa
SmartIO support] driver with "[*]" for built-in (not "[M]"), then
select [Exit] to exit this program.
3.5.5 Rebuild kernel
The following are for Linux kernel rebuilding, for your
reference only.
For appropriate details, please refer to the Linux document.
a. cd /usr/src/linux
b. make clean /* take a few minutes */
c. make dep /* take a few minutes */
d. make bzImage /* take probably 10-20 minutes */
e. Please make sure the boot kernel (vmlinuz) is in the
correct position.
f. If you use 'lilo' utility, you should check /etc/lilo.conf
'image' item specified the path which is the 'vmlinuz' path,
or you will load wrong (or old) boot kernel image (vmlinuz).
After checking /etc/lilo.conf, please run "lilo".
Note that if the result of "make bzImage" is ERROR, then you have to
go back to Linux configuration Setup. Type "make menuconfig" in
directory /usr/src/linux.
3.5.6 Make tty device and special file
# cd /moxa/mxser/driver
# ./msmknod
3.5.7 Make utility
# cd /moxa/mxser/utility
# make clean; make install
3.5.8 Reboot
3.6 Static driver configuration for Linux kernel 2.0.3x, and
2.2.14 before.
3.6.1 Create link
# cd /usr/src/linux/drivers/char
# ln -s /moxa/mxser/driver/mxser.c mxser.c
3.6.2 Add CAP address list for ISA boards. For PCI boards user,
please skip this step.
In module mode, the CAP address for ISA board is given by
parameter. In static driver configuration, you'll have to
assign it within driver's source code. If you will not
install any ISA boards, you may skip to next portion.
The instructions to modify driver source code are as
below.
a. # cd /moxa/mxser/driver
# vi mxser.c
b. Find the array mxserBoardCAP[] as below.
static int mxserBoardCAP[]
= {0x00, 0x00, 0x00, 0x00};
c. Change the address within this array using vi. For
example, to driver 2 ISA boards with CAP address
0x280 and 0x180 as 1st and 2nd board. Just to change
the source code as follows.
static int mxserBoardCAP[]
= {0x280, 0x180, 0x00, 0x00};
3.6.3 Modify tty_io.c
# cd /usr/src/linux/drivers/char/
# vi tty_io.c
Find pty_init(), insert "mxser_init()" as
pty_init();
mxser_init();
3.6.4 Modify tty.h
# cd /usr/src/linux/include/linux
# vi tty.h
Find extern int tty_init(void), insert "mxser_init()" as
extern int tty_init(void);
extern int mxser_init(void);
3.6.5 Modify Makefile
# cd /usr/src/linux/drivers/char
# vi Makefile
Find L_OBJS := tty_io.o ...... random.o, add
"mxser.o" at last of this line as
L_OBJS := tty_io.o ....... mxser.o
3.6.6 Rebuild kernel
The following are for Linux kernel rebuilding, for your
reference only.
For appropriate details, please refer to the Linux document.
a. cd /usr/src/linux
b. make clean /* take a few minutes */
c. make dep /* take a few minutes */
d. make bzImage /* take probably 10-20 minutes */
e. Please make sure the boot kernel (vmlinuz) is in the
correct position.
f. If you use 'lilo' utility, you should check /etc/lilo.conf
'image' item specified the path which is the 'vmlinuz' path,
or you will load wrong (or old) boot kernel image (vmlinuz).
After checking /etc/lilo.conf, please run "lilo".
Note that if the result of "make bzImage" is ERROR, then you have to
go back to Linux configuration Setup. Type "make menuconfig" in
directory /usr/src/linux.
3.6.7 Make tty device and special file
# cd /moxa/mxser/driver
# ./msmknod
3.6.8 Make utility
# cd /moxa/mxser/utility
# make clean; make install
3.6.9 Reboot
3.7 Custom configuration
Although this driver already provides you default configuration, you
still can change the device name and major number. The instruction to
change these parameters are shown as below.
Change Device name
------------------
If you'd like to use other device names instead of default naming
convention, all you have to do is to modify the internal code
within the shell script "msmknod". First, you have to open "msmknod"
by vi. Locate each line contains "ttyM" and "cum" and change them
to the device name you desired. "msmknod" creates the device names
you need next time executed.
Change Major number
-------------------
If major number 30 and 35 had been occupied, you may have to select
2 free major numbers for this driver. There are 3 steps to change
major numbers.
3.7.1 Find free major numbers
In /proc/devices, you may find all the major numbers occupied
in the system. Please select 2 major numbers that are available.
e.g. 40, 45.
3.7.2 Create special files
Run /moxa/mxser/driver/msmknod to create special files with
specified major numbers.
3.7.3 Modify driver with new major number
Run vi to open /moxa/mxser/driver/mxser.c. Locate the line
contains "MXSERMAJOR". Change the content as below.
#define MXSERMAJOR 40
#define MXSERCUMAJOR 45
3.7.4 Run "make clean; make install" in /moxa/mxser/driver.
3.8 Verify driver installation
You may refer to /var/log/messages to check the latest status
log reported by this driver whenever it's activated.
-----------------------------------------------------------------------------
4. Utilities
There are 3 utilities contained in this driver. They are msdiag, msmon and
msterm. These 3 utilities are released in form of source code. They should
be compiled into executable file and copied into /usr/bin.
Before using these utilities, please load driver (refer 3.4 & 3.5 & 3.6) and
make sure you had run the "msmknod" utility.
msdiag - Diagnostic
--------------------
This utility provides the function to display what Moxa Smartio/Industio
board found by driver in the system.
msmon - Port Monitoring
-----------------------
This utility gives the user a quick view about all the MOXA ports'
activities. One can easily learn each port's total received/transmitted
(Rx/Tx) character count since the time when the monitoring is started.
Rx/Tx throughputs per second are also reported in interval basis (e.g.
the last 5 seconds) and in average basis (since the time the monitoring
is started). You can reset all ports' count by <HOME> key. <+> <->
(plus/minus) keys to change the displaying time interval. Press <ENTER>
on the port, that cursor stay, to view the port's communication
parameters, signal status, and input/output queue.
msterm - Terminal Emulation
---------------------------
This utility provides data sending and receiving ability of all tty ports,
especially for MOXA ports. It is quite useful for testing simple
application, for example, sending AT command to a modem connected to the
port or used as a terminal for login purpose. Note that this is only a
dumb terminal emulation without handling full screen operation.
-----------------------------------------------------------------------------
5. Setserial
Supported Setserial parameters are listed as below.
uart set UART type(16450-->disable FIFO, 16550A-->enable FIFO)
close_delay set the amount of time(in 1/100 of a second) that DTR
should be kept low while being closed.
closing_wait set the amount of time(in 1/100 of a second) that the
serial port should wait for data to be drained while
being closed, before the receiver is disable.
spd_hi Use 57.6kb when the application requests 38.4kb.
spd_vhi Use 115.2kb when the application requests 38.4kb.
spd_normal Use 38.4kb when the application requests 38.4kb.
-----------------------------------------------------------------------------
6. Troubleshooting
The boot time error messages and solutions are stated as clearly as
possible. If all the possible solutions fail, please contact our technical
support team to get more help.
Error msg: More than 4 Moxa Smartio/Industio family boards found. Fifth board
and after are ignored.
Solution:
To avoid this problem, please unplug fifth and after board, because Moxa
driver supports up to 4 boards.
Error msg: Request_irq fail, IRQ(?) may be conflict with another device.
Solution:
Other PCI or ISA devices occupy the assigned IRQ. If you are not sure
which device causes the situation, please check /proc/interrupts to find
free IRQ and simply change another free IRQ for Moxa board.
Error msg: Board #: C1xx Series(CAP=xxx) interrupt number invalid.
Solution:
Each port within the same multiport board shares the same IRQ. Please set
one IRQ (IRQ doesn't equal to zero) for one Moxa board.
Error msg: No interrupt vector be set for Moxa ISA board(CAP=xxx).
Solution:
Moxa ISA board needs an interrupt vector.Please refer to user's manual
"Hardware Installation" chapter to set interrupt vector.
Error msg: Couldn't install MOXA Smartio/Industio family driver!
Solution:
Load Moxa driver fail, the major number may conflict with other devices.
Please refer to previous section 3.7 to change a free major number for
Moxa driver.
Error msg: Couldn't install MOXA Smartio family callout driver!
Solution:
Load Moxa callout driver fail, the callout device major number may
conflict with other devices. Please refer to previous section 3.7 to
change a free callout device major number for Moxa driver.
-----------------------------------------------------------------------------
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