getting linux console on a frame buffer.

Song Sam samlinuxppc at
Thu May 20 00:23:27 EST 2004

Geert Uytterhoeven <geert at> wrote:
> On Wed, 19 May 2004, [gb2312] Song Sam wrote:
> > > >Geert Uytterhoeven <geert at> wrote:
> > > > The problem may be that I don't have a linux console running
> > > > on the frame buffer device. Would anyone know how to get the
> > > > linux console on the frame buffer but still receives input
> > > > from a serial port (I don't have a keyboard attached to the
> > > > board. I have been doing most things from the serial console and
> > > > remotely).

> > > Append `console=tty0 console=ttyS0' to the kernel command line,
> > > and kernel messages will appear on both tty0 (fb) and ttyS0
> > > (serial), while console input will be taken from the last one
> > > (ttyS0).

> > But this isn't a solution to have a LINUX console on the frame
> > buffer with serial port input.It DID output some boot message
> > to LCD but the work console is still ttyS0.And you can type a
> > command like "echo a /dev/tty0" to make the 'a' to LCD.Without
> > such command,however,the input result still is displayed on serial
> > console.Am I right?

> You are right. I misunderstood the question.

It doesn't matter,anyway.

> If you would modify the serial port driver to send keyboard events to
> the input subsystem, it would work, though.

I am a little bit interested in this problem for my
target USB keyboard didn't work right after an
accident.I think I can get serial keyboard input on
LCD as David wanted.Could you tell me more details on
your idea,like how to modify it in 2.4.18?

Thanks in advance!


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