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vt: add an event interface

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This is needed and requested in various forms for ConsoleKit, screenblank
handling and the like so do the job with a single interface. Also build the
interface so that unlike VT_WAITACTIVE and friends it won't miss events.

FIXME: Should this be a waitactive ioctl or a new device file you can poll
and read events from. We need the code anyway to fix up the existing broken
wait for console switch logic but the ConsoleKit people would prefer the
new device to the ioctl we have here

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alan Cox 2009-09-19 13:13:24 -07:00 • committed by Live-CD User
parent 4455e34495
commit 8b92e87d39
4 changed files with 154 additions and 52 deletions
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3
include/linux/vt_kern.h
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@ -91,7 +91,8 @@ int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc);
#endif
/* vt.c */
int vt_waitactive(int vt);
void vt_event_post(unsigned int event, unsigned int old, unsigned int new);
int vt_waitactive(int n);
void change_console(struct vc_data *new_vc);
void reset_vc(struct vc_data *vc);
extern int unbind_con_driver(const struct consw *csw, int first, int last,