From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Amol Lad" Subject: Re: Dynamic switch from Console on ttyS0 to fbcon Date: Fri, 22 Aug 2008 12:52:58 +0530 Message-ID: <8c675e9b0808220022r334169a1ra15ef839f0ba06a7@mail.gmail.com> References: <8c675e9b0808192118g598fc380kf3cb3aa22cf969c8@mail.gmail.com> <8c675e9b0808200016x6da4be9bm3f4cc697ffc5cac1@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from sc8-sf-mx1-b.sourceforge.net ([10.3.1.91] helo=mail.sourceforge.net) by sc8-sf-list1-new.sourceforge.net with esmtp (Exim 4.43) id 1KWQz6-0007qW-HU for linux-fbdev-devel@lists.sourceforge.net; Fri, 22 Aug 2008 00:23:00 -0700 Received: from fg-out-1718.google.com ([72.14.220.153]) by mail.sourceforge.net with esmtp (Exim 4.44) id 1KWQz5-0007FQ-TB for linux-fbdev-devel@lists.sourceforge.net; Fri, 22 Aug 2008 00:23:00 -0700 Received: by fg-out-1718.google.com with SMTP id d23so178950fga.32 for ; Fri, 22 Aug 2008 00:22:58 -0700 (PDT) In-Reply-To: <8c675e9b0808200016x6da4be9bm3f4cc697ffc5cac1@mail.gmail.com> Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-fbdev-devel-bounces@lists.sourceforge.net Errors-To: linux-fbdev-devel-bounces@lists.sourceforge.net To: Geert Uytterhoeven Cc: linux-fbdev-devel@lists.sourceforge.net well.... very easy solution 1. Pass console=ttyS0 command line 2. modprobe fbcon 3. a.out 1>/dev/tty0 2>/dev/tty0 So, now all outs from a.out will come on FB thanks On Wed, Aug 20, 2008 at 12:46 PM, Amol Lad wrote: > On Wed, Aug 20, 2008 at 12:21 PM, Geert Uytterhoeven > wrote: >> On Wed, 20 Aug 2008, Amol Lad wrote: >>> I'm trying to switch the console from ttyS0 to frame buffer. >>> >>> The problem is if "console=ttyS0,115200n8" is passed on u-boot command >>> line then the console switch to framebuffer does not happen after >>> doing modprobe fbcon. >>> >>> If "console=ttyS0,115200n8" argument is not passed on u-boot then the >>> console switch happens after modprobe fbcon. >>> > >> Have you tried >> >> console=ttyS0,115200n8 console=tty0 >> >> ? This will make console output go to both, and console input will come >> from tty0. > > I tried that. This makes user space to use tty0 as /dev/console. In > this case I did "modprobe fbcon" (from telnet session) and I get > console on FB. > But I want console to stay on ttyS0 if "modprobe fbcon" is not done. > This way based on some /proc entry I can decide to switch to frame > buffer console in startup script or stay in ttyS0 mode > >> >> Gr{oetje,eeting}s, > > Thanks > Amol > >> >> Geert >> >> -- >> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org >> >> In personal conversations with technical people, I call myself a hacker. But >> when I'm talking to journalists I just say "programmer" or something like that. >> -- Linus Torvalds >> > ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/