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Re: [Fwd: The modem chicken and egg question? Newbie Alert!]



On Thu, 18 Mar 2004 22:35:26 -0000
"J Simpson V21" <hubblesimpson members v21 co uk> wrote:

> 
> >
> > Hi,
> > Is the com port availble?
> > Try, as root:
> > setserial /dev/ttyS3
> >
> > If should return something like:
> > /dev/ttyS3, UART:  16550A, Port: 0x02e8, IRQ: 3
> >
> > If it is not enabled in hardware, it will show:
> > /dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
> >
> > If needed, you can use setserial to change i/o & irq to match
> > your hardware
> > setings:
> > setserial /dev/ttyS3 port 0x02e8 irq 3
> > Have a look at "man seterial".
> >
> > Hope that helps.
> > --
> > Pete Nesbitt, rhce
> >
> 
> Hi Pete,
> 
> Thanks for your response.
> When I worked out how to get to root I tried setserial /dev/ttys3 it
> said input/output error.  I tried setserial/dev/ttys3 it said no
> such file or directory.
> 
> I found the man setserial and then tried setserial-g and setserial-a
> and then I tried setserial -g and setserial -a
> 
> No of it gave me
> >> If should return something like:
> > /dev/ttyS3, UART:  16550A, Port: 0x02e8, IRQ: 3
> >
> > If it is not enabled in hardware, it will show:
> > /dev/ttyS3, UART: unknown, Port: 0x02e8, IRQ: 3
> 
> The man file didn't make much sense apart from I didn't try anything
> that said 'set' as there was a warning about locking up the
> computer.
> 
> Any further help gratefully received.
> 
> I have Redhat 9 and a Motorola SM56 Speakerphone modem, on com 4.  I
> just want to get online.
> 

 /dev/ttys3 and /dev/ttyS3 are not the same... case is important (S
and s.)
 On my machine, which uses COM 2 (/dev/ttyS1):

[root linuxbox /root]# setserial /dev/ttys1
/dev/ttys1: Input/output error

[root linuxbox /root]# setserial /dev/ttyS1
/dev/ttyS1, UART: 16550A, Port: 0x02f8, IRQ: 3

 The Motorola SM56 seems to be a 'softmodem', not a true hardware
modem.
 You can find the Linux drivers for RedHat 7.3, 8.0 and 9 at:

             http://www.motorola.com/softmodem/sm56_download.htm#linux


                                           Tom




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