Re: how to map the console to framebuffer on boot?

[James S. <jsi...@ac...>]

> i'm working on an embedded PowerPC processor with a hardhat linux kernel
> (2.2.14). This linuxbox only has a serial_console because it has no
> keyboard.
>
> now, i wrote a framebuffer device that seems to work, but i dont know
> how to activate on it a console on the startup. This is what happens on
> the kernel startup (i also use the serial console):
>
> 'fb_init' initializes my fb driver, opens 63 VC and calls
> 'take_over_console', but it does nothing because 'vc_cons[i].d' is NULL.
> Then, it displays 'Console: switching to frame buffer device', but it is
> not true!
>
> Then, i tried some experiments, and i got:
>
> echo "pippo" > /dev/tty  ==> /dev/tty: Device not configured (in
> /proc/tty/drivers i found "5 0 system:/dev/tty")

This is really wrong. /dev/tty should be pointing to the system console.
Something should come out on the serial console.

> echo "pippo" > /dev/tty0  ==> /dev/tty0: No such device (in
> /proc/tty/drivers i found "4 0 system:vtmaster")
>
> Now, what i wrong?

No keyboard. Also have you tried on the lilo prompt console=ttyS1 console=tty0
This will tell the system to use both the video console (fbcon) and the
serial console. Without a keyboard no input can go threw fbcon.

MS: (n) 1. A debilitating and surprisingly widespread affliction that
renders the sufferer barely able to perform the simplest task. 2. A disease.

James Simmons  [jsi...@li...]               ____/| 
fbdev/console/gfx developer                             \ o.O| 
http://www.linux-fbdev.org                               =(_)= 
http://linuxgfx.sourceforge.net                            U
http://linuxconsole.sourceforge.net