2 files changed, 15 insertions, 1 deletions
diff --git a/sys/dev/timer/hpet.c b/sys/dev/timer/hpet.c
index ab30f63..9e9180f 100644
--- a/sys/dev/timer/hpet.c
+++ b/sys/dev/timer/hpet.c
@@ -128,6 +128,18 @@ hpet_msleep(size_t ms)
 }
 
 int
+hpet_usleep(size_t us)
+{
+    return hpet_sleep(us, 1000000000);
+}
+
+int
+hpet_nsleep(size_t ns)
+{
+    return hpet_sleep(ns, 1000000);
+}
+
+int
 hpet_init(void)
 {
     struct acpi_gas *gas;
diff --git a/sys/include/dev/timer/hpet.h b/sys/include/dev/timer/hpet.h
index 513444e..98ffb4a 100644
--- a/sys/include/dev/timer/hpet.h
+++ b/sys/include/dev/timer/hpet.h
@@ -33,6 +33,8 @@
 #include <sys/types.h>
 
 int hpet_init(void);
-void hpet_msleep(size_t ms);
+int hpet_msleep(size_t ms);
+int hpet_usleep(size_t us);
+int hpet_nsleep(size_t ns);
 
 #endif  /* !_TIMER_HPET_H_ */