diff options
Diffstat (limited to 'include/linux/vt.h')
| -rw-r--r-- | include/linux/vt.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/vt.h b/include/linux/vt.h index 9f95b0bea5b..8ab334a4822 100644 --- a/include/linux/vt.h +++ b/include/linux/vt.h @@ -1,6 +1,16 @@ #ifndef _LINUX_VT_H #define _LINUX_VT_H +/* + * These constants are also useful for user-level apps (e.g., VC + * resizing). + */ +#define MIN_NR_CONSOLES 1 /* must be at least 1 */ +#define MAX_NR_CONSOLES 63 /* serial lines start at 64 */ +#define MAX_NR_USER_CONSOLES 63 /* must be root to allocate above this */ + /* Note: the ioctl VT_GETSTATE does not work for + consoles 16 and higher (since it returns a short) */ + /* 0x56 is 'V', to avoid collision with termios and kd */ #define VT_OPENQRY 0x5600 /* find available vt */ |