From ab6ab97aa2b1af99e764e49feb004a44f8fa1487 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Beat=20K=C3=BCng?= <beat-kueng@gmx.net>
Date: Fri, 8 Feb 2019 09:29:10 +0100
Subject: [PATCH] px4_module: document that the subcategory is optional

---
 src/platforms/px4_module.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/platforms/px4_module.h b/src/platforms/px4_module.h
index 150da68c24a..fe0c32a3246 100644
--- a/src/platforms/px4_module.h
+++ b/src/platforms/px4_module.h
@@ -473,7 +473,7 @@ __EXPORT void PRINT_MODULE_DESCRIPTION(const char *description);
 __EXPORT void PRINT_MODULE_USAGE_NAME(const char *executable_name, const char *category);
 
 /**
- * @brief Specify a subcategory.
+ * @brief Specify a subcategory (optional).
  * @param subcategory e.g. if the category is 'driver', subcategory can be 'distance_sensor'
  */
 __EXPORT void PRINT_MODULE_USAGE_SUBCATEGORY(const char *subcategory);