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pps: unify timestamp gathering

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Add a helper function to gather timestamps.  This way clients don't have
to duplicate it.

Signed-off-by: Alexander Gordeev <lasaine@lvk.cs.msu.su>
Acked-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alexander Gordeev 2011-01-12 17:00:50 -08:00 • committed by Linus Torvalds
parent 3003d55b59
commit 6f4229b511
6 changed files with 45 additions and 31 deletions
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5
include/linux/tty_ldisc.h
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@ -101,7 +101,7 @@
* any pending driver I/O is completed.
*
* void (*dcd_change)(struct tty_struct *tty, unsigned int status,
* struct timespec *ts)
* struct pps_event_time *ts)
*
* Tells the discipline that the DCD pin has changed its status and
* the relative timestamp. Pointer ts can be NULL.
@ -109,6 +109,7 @@
#include <linux/fs.h>
#include <linux/wait.h>
#include <linux/pps_kernel.h>
struct tty_ldisc_ops {
int magic;
@ -143,7 +144,7 @@ struct tty_ldisc_ops {
char *fp, int count);
void (*write_wakeup)(struct tty_struct *);
void (*dcd_change)(struct tty_struct *, unsigned int,
struct timespec *);
struct pps_event_time *);
struct module *owner;