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

[James Ausmus]

On 4/24/06, maxim wexler <blissfix@×××××.com> wrote:
>
>
> --- Simon Kellett <zoxed_c@×××××.de> wrote:
>
> > maxim wexler <blissfix@×××××.com> writes:
> >
> > > #pon <isp>
> > > /usr/sbin/pppd: In file /etc/peers/hd:
> > unrecognized
> > > option '/dev/ttyS0'
> >
> > Sorry if it sounds obvious, but do you have serial
> > port built into the
> > kernel ? Is it recognised at boot up ?
>
> As modules in /etc/modules.autoload.d/2.6. And they
> all load before /etc/conf.d/net is reached. Don't tell
> me I have to put them in the kernel now. That's lame.
> It assumes I want to dial out every time I boot up.
> Not true.
>
You don't need it to be a "built-in" - module will work just fine.
However, from your lsmod output, I'm not seing a *serial driver*
module loaded (the piece that does the hardware-level communication
with the physical serial port - the ppp_* modules handle the
networking aspect of a dial-up modem, but they rely on actually having
a serial port to talk to). Did you compile serial port support into
your kernel (as a built-in or a module)? What is the output of
modprobe -l  (ell, not eye)?

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

If it doesn't, then go ahead and add it in, recompile, reboot, and see
if your problem is fixed.

If it is enabled, and it is a module, there should be a module with a
name something along the lines of serial8250 - try modprobe'ing it,
then check for /dev/ttyS0.

What is the output of ls -al /dev/tts?

In your dmesg, do you see anything like:
serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
? (cat /var/log/dmesg, or just type dmesg)


HTH-

James


> >
> > Was the old softlink created by the kernel or udev ?
>
> Don't know. But now the link(if you mean the sym-link
> from net.lo to net.ppp0) is made in /etc/conf.d/net
> where it says cd something something, ln -s net.lo
> net.ppp0. Which is confusing because why does it have
> to make the link every time the PC boot's. And then
> when it boots it says something like "file already
> exists". But see my thread "emerge wvdial issues" for
> more detail.
>
> I even created the device useing mknod with the major,
> minor numbers from ../Documentation/devices.txt.
>
> No dice.
>
> -Maxim
>
>
>
> >
> > --
> > Simon Kellett,        |   Gentoo Linux, Fvwm,
> > Firefox
> > Darmstadt, Germany    |              Xemacs, Vm,
> > Gnus
> >
> > --
> > gentoo-user@g.o mailing list
> >
> >
>
>
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