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Re: modem problems

On Sat, 3 Jan 1998, Dennis Drapeau wrote:

> Please help.   I can't get my modem to work under linux, but it works
> fine in NT.  The settings in NT are:
> IRQ 3  and IO 0x2e8   (COM4) .
> When booting linux, it sees my serial ports at :
> /dev/tty00 at 0x03f8 (irq = 4) is a 16550A
> /dev/tty03 at 0x02e8 (irq = 3) is a 16550A

That seems odd.  I thought that Linux would only set
tty00 and tty01 at bootup.

> and after /rc.boot/0setserial is run they are configured to :
> /dev/ttyS0  at 0x03f8 (irq = 4) is a 16550A
> /dev/ttyS3  at 0x02e8 (irq = 3) is a 16550A
> Seems ok to me, but I cannot dial out from port /dev/ttyS3.    The group
> on /dev/ttyS3 is dialout.
> When I checked /proc/interrupts ,  there is no assignment for IRQ 3 .  I
> have no idea what to do next .

A stab in the dark, but try setserial -a /dev/ttyS1
setserial -a /dev/ttyS3 to see how they are configured.
Also make sure that you have the serial module loaded, or that serial
devices are compiled into the kernel.


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