From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mtagate6.de.ibm.com (mtagate6.de.ibm.com [195.212.29.155]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "mtagate6.de.ibm.com", Issuer "Equifax" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 14A4BDDF17 for ; Tue, 14 Oct 2008 20:15:20 +1100 (EST) Received: from d12nrmr1607.megacenter.de.ibm.com (d12nrmr1607.megacenter.de.ibm.com [9.149.167.49]) by mtagate6.de.ibm.com (8.13.8/8.13.8) with ESMTP id m9E9EECh465158 for ; Tue, 14 Oct 2008 09:14:14 GMT Received: from d12av02.megacenter.de.ibm.com (d12av02.megacenter.de.ibm.com [9.149.165.228]) by d12nrmr1607.megacenter.de.ibm.com (8.13.8/8.13.8/NCO v9.1) with ESMTP id m9E9EDGM3121348 for ; Tue, 14 Oct 2008 11:14:14 +0200 Received: from d12av02.megacenter.de.ibm.com (loopback [127.0.0.1]) by d12av02.megacenter.de.ibm.com (8.12.11.20060308/8.13.3) with ESMTP id m9E9EDkt003449 for ; Tue, 14 Oct 2008 11:14:13 +0200 Message-Id: <20081014091413.003841094@linux.vnet.ibm.com> References: <20081014091247.433079967@linux.vnet.ibm.com> Date: Tue, 14 Oct 2008 11:12:49 +0200 From: Hendrik Brueckner To: Benjamin Herrenschmidt , Linux PPC devel , Jeremy Fitzhardinge , Rusty Russell , "Ryan S. Arnold" Subject: [RFC PATCH 2/5] hvc_console: Add tty driver flag TTY_DRIVER_RESET_TERMIOS Cc: Martin Schwidefsky , Christian Borntraeger , Hendrik Brueckner , Heiko Carstens , LKML List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Hendrik Brueckner After a tty hangup() or close() operation, processes might not reset the termio settings to a sane state. In order to reset the termios to its default settings the tty driver flag TTY_DRIVER_RESET_TERMIOS has been added. TTY driver flag description from include/linux/tty_driver.h: TTY_DRIVER_RESET_TERMIOS --- requests the tty layer to reset the termios setting when the last process has closed the device. Used for PTY's, in particular. Acked-by: Christian Borntraeger Signed-off-by: Hendrik Brueckner --- drivers/char/hvc_console.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/char/hvc_console.c +++ b/drivers/char/hvc_console.c @@ -796,7 +796,7 @@ static int hvc_init(void) drv->minor_start = HVC_MINOR; drv->type = TTY_DRIVER_TYPE_SYSTEM; drv->init_termios = tty_std_termios; - drv->flags = TTY_DRIVER_REAL_RAW; + drv->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS; tty_set_operations(drv, &hvc_ops); /* Always start the kthread because there can be hotplug vty adapters -- Hendrik Brueckner D/3303 Linux on System z Development Tel: +49 7031 16-1073 Fax: +49 7031 16-3456 eMail: brueckner@linux.vnet.ibm.com IBM Deutschland Research & Development GmbH, Schoenaicher Str. 220, 71032 Boeblingen IBM Deutschland Research & Development GmbH Vorsitzender des Aufsichtsrats: Martin Jetter Geschaeftsfuehrung: Erich Baier Sitz der Gesellschaft: Boeblingen Registergericht: Amtsgericht Stuttgart, HRB 243294