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Author Message
 IRQ Problems
Hi there,
I recently purchased  a new linux compatible modem. Although I can get
it to work under linux, there is one big problem, I always have to
manually the irq. The modem is on com3 and the default irq for com3 is
something other than what I have. So before I dial-up anywhere, I always

have to 'setserial /dev/modem irq 5'. What I wonder about, is there any
config file, or utility out there that will assign or set (as default)
the irq for com3 as irq 5? Simple isn't it, but I simply cannot figure
it out.
If you could help me, I would be grateful!
Thanks



 Wed, 18 Jun 1902 08:00:00 GMT   
 IRQ Problems

On Tue, 05 Dec 2000 16:10:00 -0600 in comp.os.linux.setup,
<ka...@bigfoot.com> `Matthew Alicton' said:

: I always
: have to 'setserial /dev/modem irq 5'. What I wonder about, is there any
: config file, or utility out there that will assign or set (as default)
: the irq for com3 as irq 5?

Put the command "setserial /dev/modem irq 5" in your rc.local init script.
On Red Hat for example, the file is located in: /etc/rc.d/rc.local .

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 Wed, 18 Jun 1902 08:00:00 GMT   
 IRQ Problems

Have you tried putting 'setserial /dev/modem irq 5' at the end of your
/etc/rc.d/rc.local script?  This should set it at boot.
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 Wed, 18 Jun 1902 08:00:00 GMT   
 IRQ Problems

Do you have the serial script in your init scripts?

There is a file "rc.serial" in the documentation directory for the
setserial package:

setserial Version 2.15 (2-Nov-98)

Setserial is a program which allows you to look at and change various
attributes of a serial device, including its port, its IRQ, and other
serial port options.

Starting with Linux 0.99 pl10, only the COM1-4 ports are configured,
using the default IRQ of 4 and 3.  So, if you have any other serial
ports provided by other boards (such as an AST Fourport), or if COM3-4
have been a non-standard IRQ so that you can use time simultaneously
with COM1-2, you *must* use this program in order to configure those
serial ports.

The simplest way to configure the serial ports is to copy the provided
rc.serial file to the appropriate /etc/rc.d directory.  For example,
to install rc.serial on a RedHat system, copy rc.serial to
/etc/rc.d/init.d/serial, and then run the command "chkconfig -add
serial".

I would use the GUI script configuration tool, ksysv in KDE, to check
this, or to do it.

After you do this, your serial configuration will be saved when you
shutdown and restored when you reboot.

JRT



 Sun, 25 May 2003 13:27:11 GMT   
 
   [ 4 post ] 

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