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clocks: export symbol do_posix_clock_monotonic_gettime

PATCH In review Michal Maruška 2 participants 3 messages Dec 26, 2005 – Dec 27, 2005 Input drivers

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Michal Maruška

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#0 lore raw

PATCH 1/1 clocks: export symbol do_posix_clock_monotonic_gettime

Getting access to monotonic time from modules is indispensable, for instance, for modular evdev to timestamp input events with a useful time information.

(I have already provided patch for evdev (also this one) in my previous, unanswered, post http://lkml.org/lkml/2005/10/6/92 )

Signed-off-by Michal Maruska <[email protected]>
kernel/posix-timers.c +1 -0
@@ -1219,6 +1219,7 @@ int do_posix_clock_monotonic_gettime(str
 {
 	return do_posix_clock_monotonic_get(CLOCK_MONOTONIC, tp);
 }
+EXPORT_SYMBOL_GPL(do_posix_clock_monotonic_gettime);
 
 int do_posix_clock_nosettime(clockid_t clockid, struct timespec *tp)
 {
#1 lore raw
Quoted 2 lines · Michal Maruška

Getting access to monotonic time from modules is indispensable, for instance, for modular evdev to timestamp input events with a useful time information.

could you also include the patch to add the user (say evdev) in the same patch please?

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#2 lore raw

Re: [PATCH 2.6.15-rc7] clocks: export symbol do_posix_clock_monotonic_gettime + input: monotonic timestamps for evdev

Quoted 2 lines · Arjan van de Ven

could you also include the patch to add the user (say evdev) in the same patch please?

here is my complete patch updated for -rc7:

Summary:
- export do_posix_clock_monotonic_gettime
- implement an ioctl call for EVDEV to request timestamping of events with monotonic time.

For complete explanation see my previous mail http://lkml.org/lkml/2005/10/6/92

Signed-off-by Michal Maruska <[email protected]>
kernel/posix-timers.c +1 -0
@@ -1219,6 +1219,7 @@ int do_posix_clock_monotonic_gettime(str
 {
 	return do_posix_clock_monotonic_get(CLOCK_MONOTONIC, tp);
 }
+EXPORT_SYMBOL_GPL(do_posix_clock_monotonic_gettime);
 
 int do_posix_clock_nosettime(clockid_t clockid, struct timespec *tp)
 {
drivers/input/evdev.c +46 -2

92 lines not on this page · raw message

include/linux/input.h +9 -0
@@ -79,6 +79,15 @@ struct input_absinfo {
 
 #define EVIOCGRAB		_IOW('E', 0x90, int)			/* Grab/Release device */
 
+#define EVIOCTIME		_IOW('E', 0x91, int)			/* choose what kind of time to use for timestamps */
+
+/*
+ * Time used to timestamp 
+ */
+#define EV_USE_MONOTONIC_TIME 0
+#define EV_USE_DAY_TIME 1
+
+
 /*
  * Event types
  */