target/linux/s3c24xx/patches-2.6.30/080-nr-tty-devices.patch

   1 --- a/include/linux/vt.h
   2 +++ b/include/linux/vt.h
   3 @@ -18,8 +18,19 @@ extern int unregister_vt_notifier(struct
   4   * resizing).
   5   */
   6  #define MIN_NR_CONSOLES 1       /* must be at least 1 */
   7 +#if (CONFIG_NR_TTY_DEVICES < 4)
   8 +/* Lower Limit */
   9 +#define MAX_NR_CONSOLES        4       /* serial lines start at 64 */
  10 +#define MAX_NR_USER_CONSOLES 4 /* must be root to allocate above this */
  11 +#elif (CONFIG_NR_TTY_DEVICES > 63)
  12 +/* Upper Limit */
  13  #define MAX_NR_CONSOLES        63      /* serial lines start at 64 */
  14  #define MAX_NR_USER_CONSOLES 63        /* must be root to allocate above this */
  15 +#else
  16 +/* They chose a sensible number */
  17 +#define MAX_NR_CONSOLES CONFIG_NR_TTY_DEVICES
  18 +#define MAX_NR_USER_CONSOLES CONFIG_NR_TTY_DEVICES
  19 +#endif
  20                 /* Note: the ioctl VT_GETSTATE does not work for
  21                    consoles 16 and higher (since it returns a short) */
  22
  23 --- a/drivers/char/Kconfig
  24 +++ b/drivers/char/Kconfig
  25 @@ -66,6 +66,18 @@ config VT_CONSOLE
  26
  27           If unsure, say Y.
  28
  29 +config NR_TTY_DEVICES
  30 +       int "Maximum tty device number"
  31 +       depends on VT
  32 +       default 63
  33 +       ---help---
  34 +         This is the highest numbered device created in /dev. You will actually have
  35 +         NR_TTY_DEVICES+1 devices in /dev. The default is 63, which will result in
  36 +         64 /dev entries. The lowest number you can set is 11, anything below that,
  37 +         and it will default to 11. 63 is also the upper limit so we don't overrun
  38 +         the serial consoles.
  39 +
  40 +
  41  config HW_CONSOLE
  42         bool
  43         depends on VT && !S390 && !UML