Re: [gentoo-user] Re: where is /dev/ttyS* ?

[Alan E. Davis]

I have an internal PCI modem.  It was /dev/ttyS14 for a long time, on
Ubuntu and Mepis, and maybe Gentoo (don't remember), but then, on
Gentoo, it started showing up on /dev/ttyS4, I believe.

Oddly, running kernel 2.6.16, it is showing up as /dev/ttyS2, so I had
to re-run wvdialconf (the only such package that ever detected the
modem as /dev/ttyS14, by the way).   Although I cannot be certain, I
suspect that serial support in the 2.6.X kernel series has gone
through another evolution.

Alan

On 4/25/06, Walter Dnes <waltdnes@××××××××.org> wrote:
> On Mon, Apr 24, 2006 at 02:51:09PM -0700, James Ausmus wrote
>
> > To check for serial port support in your kernel, do:
> > cd /usr/src/linux
> > make menuconfig
> > go to Device Drivers -> Character Devices -> Serial Drivers
> > Then make sure that "8250/16550 and compatible serial support" has
> > either a * or an M
>
>   One more booby-trap.  Is your modem an external modem that plugs into
> the serial port?  No problem.  If it's an internal PCI modem (not
> necessarily a "Winmodem") it will *NOT* work on the 4 standard COM ports
> ttyS0..ttyS3 (COM1:..COM4: in DOS-speak).  It uses ttyS4 (COM5: in DOS)
> or higher.  The *DEFAULT* is to support only the 4 standard ports.  To
> support more ports (required for PCI modems) you must go to the menu
> above and specify 5 or more ports, like so...
>
>   (5)   Maximum number of 8250/16550 serial ports
>
>   That one drove me nuts on my old Dell.  I had gone out of my way to
> order a real PCI modem.  It worked fine on Redhat 7.1 through 9.0, but
> simply wouldn't show up on some other distros.
>
> --
> Walter Dnes <waltdnes@××××××××.org> In linux /sbin/init is Job #1
> My musings on technology and security at http://tech_sec.blog.ca
> --
> gentoo-user@g.o mailing list
>
>

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