From cffdb1c8e216e779050465e516960cd370b30bdf Mon Sep 17 00:00:00 2001
From: Martine Lenders <mlenders@inf.fu-berlin.de>
Date: Thu, 15 Oct 2015 17:20:09 +0200
Subject: [PATCH] timex: introduce USEC_IN_NS constant

---
 sys/include/timex.h                   | 5 +++++
 sys/posix/semaphore/posix_semaphore.c | 2 --
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/sys/include/timex.h b/sys/include/timex.h
index 935f702cd..9a9432143 100644
--- a/sys/include/timex.h
+++ b/sys/include/timex.h
@@ -43,6 +43,11 @@ extern "C" {
  */
 #define MS_IN_USEC  (1000U)
 
+/**
+ * @brief The number of nanoseconds per microsecond
+ */
+#define USEC_IN_NS  (1000)
+
 /**
  * @brief The maximum length of the string representation of a timex timestamp
  */
diff --git a/sys/posix/semaphore/posix_semaphore.c b/sys/posix/semaphore/posix_semaphore.c
index 4f9756296..4e8d67893 100644
--- a/sys/posix/semaphore/posix_semaphore.c
+++ b/sys/posix/semaphore/posix_semaphore.c
@@ -32,8 +32,6 @@
 
 #include "semaphore.h"
 
-#define USEC_IN_NS  (1000)
-
 int sem_timedwait(sem_t *sem, const struct timespec *abstime)
 {
     timex_t now, timeout = { abstime->tv_sec, abstime->tv_nsec / USEC_IN_NS };