From f32f00f8aeae3f4e9959701f09cc79f826fff93b Mon Sep 17 00:00:00 2001
From: Rene 'Renne' Bartsch <rene@bartschnet.de>
Date: Thu, 12 Jul 2018 17:49:48 +0200
Subject: [PATCH] Minor improvements of code example.

---
 Sensor-API.md | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Sensor-API.md b/Sensor-API.md
index 587f5559..7a5753e7 100644
--- a/Sensor-API.md
+++ b/Sensor-API.md
@@ -11,6 +11,9 @@ Conditional compiling of a sensor driver is achieved by commenting/uncommenting
 
 Any sensor driver needs a callback function following the scheme
 ```
+// Conditional compilation of driver
+#ifdef USE_<driver_name>
+
 // Define driver ID
 #define XSNS_<driver_ID>
 
@@ -27,7 +30,7 @@ Any sensor driver needs a callback function following the scheme
  */
 boolean Xsns<driverID>(byte callback_id) {
 
-  // ???
+  // Set return value to `false`
   boolean result = false;
 
   // Check if I2C interface mode
@@ -72,11 +75,12 @@ boolean Xsns<driverID>(byte callback_id) {
     case FUNC_FREE_MEM
       break;
   }
-// } // i2c_flg
+// } // if(i2c_flg)
 
   // Return boolean result
   return result;
 }
+#endif // USE_<driver_name>
 ```