gpio.c: made millis() uint32_t to conform to i2c.c

diff --git a/gpio.c b/gpio.c
index 70c349a9abd195bb4dfbff7858d938309ac6b1ad..c4afa7e3152cb37827b31c928cadeeec4350ea5d 100644 (file)
--- a/gpio.c
+++ b/gpio.c
@@ -349,7 +349,7 @@ static void initialiseEpoch() {
   epochMilli = (uint64_t)ts.tv_sec * (uint64_t)1000    + (uint64_t)(ts.tv_nsec / 1000000L) ;
 }
 
-unsigned int millis () {
+static uint32_t millis () {
   uint64_t now ;
   struct  timespec ts ;
   clock_gettime (CLOCK_MONOTONIC_RAW, &ts) ;