[PATCH] vt: Remove VT-specific declarations and definitions from tty.h

MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a
function of the VT layer than the TTY one.  Moving these to vt.h and vt_kern.h
allows all of the framebuffer and VT console drivers to remove their
dependency on tty.h.

[akpm@osdl.org: fix alpha build]
Signed-off-by: Jon Smirl <jonsmir@gmail.com>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/linux/vt.h b/include/linux/vt.h
index 9f95b0bea5b3..8ab334a48222 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 */