Merge branch 'master'

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 */