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-rw-r--r--sys/amd64/include/clock.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/amd64/include/clock.h b/sys/amd64/include/clock.h
index 30c2f26ec7c6..9a6876e9e8df 100644
--- a/sys/amd64/include/clock.h
+++ b/sys/amd64/include/clock.h
@@ -31,7 +31,8 @@ void i8254_init(void);
int acquire_timer2(int mode);
int release_timer2(void);
-int rtcin(int val);
+int rtcin(int reg);
+void writertc(int reg, unsigned char val);
int sysbeep(int pitch, int period);
void init_TSC(void);
void init_TSC_tc(void);