Re: [Gumstix-users] How to output text to the framebuffer console durring boot, and disable the blinking cursor?

[Peter L. <pl...@gm...>]

Could you clarify what the steps are to enable the virtual terminal?  I
can't find
the exact directions on the Wiki.  I have CONFIG_LOGO=y in the Linux
.config and I know about the tty0 line in /etc/inittab.  I don't think my
/dev/tty0
is linked to the LCD at this point, though.

Thanks.



On 7/26/07, Craig Hughes <cr...@gu...> wrote:
>
> On Jul 26, 2007, at 10:06 AM, Jason Peterson wrote:
>
> > I have  enabled the necessary options in the kernel to get the Gumstix
> > logo splash screen to show up on an LCD during boot.  I can see the
> > cursor flashing in the upper left hand corner along with the logo.
> >
> > 1.  How do I write messages to the frame buffer console during boot?
>
> /dev/tty0 should be connected to the fbcon, so you can do stuff like
>
> echo "Hello world" > /dev/tty0
>
> > 2.  How do I disable the flashing cursor during boot?
>
> I forget how you turn the cursor black -- some escape sequence you
> can send to the tty probably.  According to this:
>
> <http://linux.die.net/man/4/console_codes>
>
> it *might* be:
>
> ESC [ ? 25 h
>      DECTECM (default on): Make cursor visible.
>
> So you'd do something like:
>
> echo -ne '\033[?25h' > /dev/tty0
>
> It might be '\0033[?25h' -- I never remember whether you need that
> extra 0 in octal escape sequences or not...
>
> C
>
>
>
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