[ltp] T21 /dev/ttyS0

[Manolis Stamatogiannakis]

Thanks! That was my case too. After enabling the port from bios
linux recognized it too.

Regards,
Manolis

On Mon, 16 Sep 2002, David Grindrod wrote:

> Try looking in the bios to see if it is anabled. It was disabled on my
> A31p although Windows 2000 recognised it with it disabled. In order for
> Linux to find the serial port then it does need to be enabled in the BIOS.
>
> Dave
>
> Rob Mayoff wrote:
>
> >+---------- On Sep 16, Manolis Stamatogiannakis said:
> >
> >>Hi, I have installed gentoo linux on a TP T21.
> >>There is no /dev/ttyS0 though. I am using devfs.
> >>How do I create the serial port device? Did anybody
> >>gave similar problems with linux on his TP?
> >>
> >>The serial driver is bult in the kernel (gentoo-2.4.19-r9).
> >>Here is the part of the dmesg output:
> >>
> >
> >If the serial ports aren't enabled at boot time, then devfs won't have
> >the device nodes for the serial ports. In my experience, devfs will
> >NOT create the device nodes later if you enable the serial ports after
> >boot (using tpctl or setpnp), when the serial driver is built in to the
> >kernel.
> >
> >If you absolutely need the serial ports without rebooting, and you're in
> >this situation, then you can create the device nodes somewhere else, for
> >example as /tmp/ttyS0 and /tmp/ttyS1.  The major number is 4 and the
> >minor numbers are 64 (for ttyS0) and 65 (for ttyS1).
> >
> >I rebuilt my kernel with the serial driver as a module. This way, if the
> >serial ports are disabled when I boot, I can enable them with tpctl or
> >setpnp and then load the module. When the serial driver module loads, it
> >creates the devfs device nodes if the serial ports are enabled.
> >
> >
>
>