target/linux/s3c24xx/patches-2.6.31/080-nr-tty-devices.patch

   1 From 615dc14d7d29e2ff36e1da3cbb421884137bb7eb Mon Sep 17 00:00:00 2001
   2 From: Lars-Peter Clausen <lars@metafoo.de>
   3 Date: Tue, 21 Jul 2009 12:51:00 +0200
   4 Subject: [PATCH] 080-nr-tty-devices.patch
   5
   6 ---
   7  drivers/char/Kconfig |   12 ++++++++++++
   8  include/linux/vt.h   |   11 +++++++++++
   9  2 files changed, 23 insertions(+), 0 deletions(-)
  10
  11 diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
  12 index 6a06913..8e17552 100644
  13 --- a/drivers/char/Kconfig
  14 +++ b/drivers/char/Kconfig
  15 @@ -66,6 +66,18 @@ config VT_CONSOLE
  16
  17           If unsure, say Y.
  18
  19 +config NR_TTY_DEVICES
  20 +       int "Maximum tty device number"
  21 +       depends on VT
  22 +       default 63
  23 +       ---help---
  24 +         This is the highest numbered device created in /dev. You will actually have
  25 +         NR_TTY_DEVICES+1 devices in /dev. The default is 63, which will result in
  26 +         64 /dev entries. The lowest number you can set is 11, anything below that,
  27 +         and it will default to 11. 63 is also the upper limit so we don't overrun
  28 +         the serial consoles.
  29 +
  30 +
  31  config HW_CONSOLE
  32         bool
  33         depends on VT && !S390 && !UML
  34 diff --git a/include/linux/vt.h b/include/linux/vt.h
  35 index 02c1c02..2ba4d21 100644
  36 --- a/include/linux/vt.h
  37 +++ b/include/linux/vt.h
  38 @@ -18,8 +18,19 @@ extern int unregister_vt_notifier(struct notifier_block *nb);
  39   * resizing).
  40   */
  41  #define MIN_NR_CONSOLES 1       /* must be at least 1 */
  42 +#if (CONFIG_NR_TTY_DEVICES < 4)
  43 +/* Lower Limit */
  44 +#define MAX_NR_CONSOLES        4       /* serial lines start at 64 */
  45 +#define MAX_NR_USER_CONSOLES 4 /* must be root to allocate above this */
  46 +#elif (CONFIG_NR_TTY_DEVICES > 63)
  47 +/* Upper Limit */
  48  #define MAX_NR_CONSOLES        63      /* serial lines start at 64 */
  49  #define MAX_NR_USER_CONSOLES 63        /* must be root to allocate above this */
  50 +#else
  51 +/* They chose a sensible number */
  52 +#define MAX_NR_CONSOLES CONFIG_NR_TTY_DEVICES
  53 +#define MAX_NR_USER_CONSOLES CONFIG_NR_TTY_DEVICES
  54 +#endif
  55                 /* Note: the ioctl VT_GETSTATE does not work for
  56                    consoles 16 and higher (since it returns a short) */
  57
  58 --
  59 1.5.6.5
  60