1 files changed, 5 insertions, 11 deletions
diff --git a/wirish/pwm.h b/wirish/pwm.h
index d0bc9e0..4ce4bb4 100644
--- a/wirish/pwm.h
+++ b/wirish/pwm.h
@@ -28,12 +28,8 @@
  *  @brief Arduino-compatible PWM interface.
  */
 
-#ifndef _PWM_H
-#define _PWM_H
-
-#ifdef __cplusplus
-extern "C"{
-#endif
+#ifndef _PWM_H_
+#define _PWM_H_
 
 /**
  * As a convenience, analogWrite is an alias of pwmWrite to ease
@@ -47,13 +43,11 @@ extern "C"{
  *
  * User code is expected to determine and honor the maximum value
  * (based on the configured period).
+ *
+ * @param pin PWM output pin
+ * @param duty_cycle Duty cycle to set.
  */
 void pwmWrite(uint8 pin, uint16 duty_cycle);
 
-#ifdef __cplusplus
-}
-#endif
-
-
 #endif