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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2007-10-18 23:39:17 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 11:53:34 -0700
commitb293d758470e971253eec42b817bc9ef1213b228 (patch)
treeaafc6011762436cf3076798fee7140145908852c /include/linux/vt.h
parentfe9d4f576324999ac521c931f3b3eee0c8e45544 (diff)
Console events and accessibility
Some external modules like Speakup need to monitor console output. This adds a VT notifier that such modules can use to get console output events: allocation, deallocation, writes, other updates (cursor position, switch, etc.) [akpm@linux-foundation.org: fix headers_check] Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/vt.h')
-rw-r--r--include/linux/vt.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/vt.h b/include/linux/vt.h
index ba806e8711be..02c1c0288770 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -1,6 +1,18 @@
#ifndef _LINUX_VT_H
#define _LINUX_VT_H
+#ifdef __KERNEL__
+struct notifier_block;
+
+struct vt_notifier_param {
+ struct vc_data *vc; /* VC on which the update happened */
+ unsigned int c; /* Printed char */
+};
+
+extern int register_vt_notifier(struct notifier_block *nb);
+extern int unregister_vt_notifier(struct notifier_block *nb);
+#endif
+
/*
* These constants are also useful for user-level apps (e.g., VC
* resizing).