[gentoo-user] What /devTTY? is the modem normally under?

[gentoo-user] What /devTTY? is the modem normally under?

[Richard Watson]

Hi, I have an internal modem on my laptop (Compaq nx7000). I was wondering
if anyone can tell what the /dev/tty is likely to be under udev. Thanks,
Alan
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Re: [gentoo-user] What /devTTY? is the modem normally under?

[John Jolet]

a modem on a laptop isn't likely to be under anything.  MOST of them  
are "winmodems" and are mostly software.  windows software, to be  
exact.  There may be projects out there to get some of them to work,  
but I'm not sure what the success rate is these days.  Last I looked,  
it was abysmal.

However, modems in general are normally under /dev/modem, which  
should be a symlink to /dev/ttyS0, or /dev/ttyS1.

On Sep 27, 2005, at 9:40 PM, Richard Watson wrote:

> Hi, I have an internal modem on my laptop (Compaq nx7000). I was  
> wondering
> if anyone can tell what the /dev/tty is likely to be under udev.  
> Thanks,
> Alan
> --
> No virus found in this outgoing message.
> Checked by AVG Anti-Virus.
> Version: 7.0.344 / Virus Database: 267.11.7/112 - Release Date:  
> 26/09/2005
>
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>
>

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Re: [gentoo-user] What /devTTY? is the modem normally under?

[Nick Rout]

On Tue, 27 Sep 2005 21:56:49 -0500
John Jolet wrote:

> a modem on a laptop isn't likely to be under anything.  MOST of them  
> are "winmodems" and are mostly software.  windows software, to be  
> exact.  There may be projects out there to get some of them to work,  
> but I'm not sure what the success rate is these days.  Last I looked,  
> it was abysmal.
> 
> However, modems in general are normally under /dev/modem, which  
> should be a symlink to /dev/ttyS0, or /dev/ttyS1.

OTOH many of them can be made to work. You need to find out what sort it is.

The folowing resources may assist:

http://www.linux-laptop.net/  - database of laptops and links to other
users experiences.

http://tuxmobil.org/laptop_manufacturer.html ditto

http://linmodems.technion.ac.il/ - in particular the scanmodem utility.
Run it and look at the files it produces.

The linmodem mailing list is also referenced on that page.

Different linmodem drivers place the device in different places. My
laptop has an LTmodem which has its device in a different place to an
slmodem. The good news is that once you have it working tyou can make a
symlink to /dev/modem (or get udev to do so).

More good news is that if your modem has a linux driver it is probably
in portage. You really do need to study the documentation though.

Be aware of this too: lspci will give you a vendor and product ID. These can be confusing, as the unique winmodem is often the subsystem
underneath that. I can't give you as modem example, but look at this
output of lspci -vn in realtion to my ethernet card:

0000:00:12.0 Class 0200: 1106:3065 (rev 74)
        Subsystem: 1106:0102

Often the top line can be the same (the bit that says 1106:3065) but the
second, subsystem line (the 1106:0102 bit) can say completely different
things  on different modems requiring different drivers. The tricky bit
is that lspci (without -v) can give the same result in either case.
However scanmodem should give accurate results. Get the latest direct
from the site I gave above, as things move along fast in winmodemland.

Good luck.



> 
> On Sep 27, 2005, at 9:40 PM, Richard Watson wrote:
> 
> > Hi, I have an internal modem on my laptop (Compaq nx7000). I was  
> > wondering
> > if anyone can tell what the /dev/tty is likely to be under udev.  
> > Thanks,
> > Alan
> > --
> > No virus found in this outgoing message.
> > Checked by AVG Anti-Virus.
> > Version: 7.0.344 / Virus Database: 267.11.7/112 - Release Date:  
> > 26/09/2005
> >
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> > gentoo-user@gentoo.org mailing list
> >
> >
> 
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Nick Rout <nick@rout.co.nz>

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Re: [gentoo-user] What /devTTY? is the modem normally under?

[Nick Rout]

On Wed, 28 Sep 2005 15:31:04 +1200
Nick Rout wrote:

> 

> 
> The folowing resources may assist:
> 
> http://www.linux-laptop.net/  - database of laptops and links to other
> users experiences.

In fact via there I found for you this:

http://www.utc.fr/~villegas/docs/nx7000/#amr_modem

which suggests that it will be the slmodem driver.

emerge slmodem

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RE: [gentoo-user] What /devTTY? is the modem normally under?

[Richard Watson]

Thanks to everyone for their feedback on this. Richard

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Re: [gentoo-user] What /devTTY? is the modem normally under?

[Walter Dnes]

  In addition to what everyone else has mentioned.  External modems work
on /dev/ttyS0../dev/ttyS3 (DOS COM1:..COM4:).  Internal PCI modems work
on /dev/ttyS4 or higher.  Some kernels default to only supporting the 4
external ports, and internal PCI modems won't run.  To support internal
PCI modems, go into "make menuconfig"...

    Device Drivers  --->
    Character devices  --->
    Serial drivers  --->
<*> 8250/16550 and compatible serial support
(5)   Maximum number of non-legacy 8250/16550 serial ports

    The (5) allows for 1 PCI modem.  If you have 2 PCI modems, you need
to set the number of ports to at least (6), etc.

-- 
Walter Dnes <waltdnes@waltdnes.org>
My musings on technology and security at http://tech_sec.blog.ca
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RE: [gentoo-user] What /devTTY? is the modem normally under?

[Richard Watson]

Hi again. I installed slmodem but it's looking for /dev/ttySL0. Presumably I
need to create this manually. Can anyone tell me what command I should use
to create this. Thanks, Richard



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Re: [gentoo-user] What /devTTY? is the modem normally under?

[Neil Bothwick]

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On Thu, 29 Sep 2005 14:14:20 +1000, Richard Watson wrote:

> Hi again. I installed slmodem but it's looking for /dev/ttySL0.
> Presumably I need to create this manually. Can anyone tell me what
> command I should use to create this.

It's been a while since I used slmodem, but I'm fairly sure the init
script set this up. Have you added slmodem to your default runlevel?


-- 
Neil Bothwick

Favorite Windoze game: Guess what this icon does?

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