t/common: Tidy builders a bit [NFC]

src/xrt/targets/common/target_builder_lighthouse.c

@@ -283,6 +283,7 @@ valve_index_hand_track(struct lighthouse_system *lhs,
 	return false;
 }
 
+
 /*
  *
  * Member functions.

src/xrt/targets/common/target_builder_north_star.c

@@ -369,6 +369,13 @@ ns_setup_depthai_device(struct ns_builder *nsb,
 }
 #endif
 
+
+/*
+ *
+ * Member functions.
+ *
+ */
+
 // Note: We're just checking for the config file's existence
 static xrt_result_t
 ns_estimate_system(struct xrt_builder *xb, cJSON *config, struct xrt_prober *xp, struct xrt_builder_estimate *estimate)

src/xrt/targets/common/target_builder_nreal_air.c

@@ -32,14 +32,26 @@ enum u_logging_level nreal_air_log_level;
 #define NA_WARN(...) U_LOG_IFL_W(nreal_air_log_level, __VA_ARGS__)
 #define NA_ERROR(...) U_LOG_IFL_E(nreal_air_log_level, __VA_ARGS__)
 
+
 /*
  *
- * Defines & structs.
+ * Misc stuff.
  *
  */
 
 DEBUG_GET_ONCE_LOG_OPTION(nreal_air_log, "NA_LOG", U_LOGGING_WARN)
 
+static const char *driver_list[] = {
+    "nreal_air",
+};
+
+
+/*
+ *
+ * Member functions.
+ *
+ */
+
 static xrt_result_t
 nreal_air_estimate_system(struct xrt_builder *xb,
                           cJSON *config,
@@ -181,21 +193,19 @@ fail:
 	return XRT_ERROR_DEVICE_CREATION_FAILED;
 }
 
-/*
- *
- * 'Exported' functions.
- *
- */
-static const char *driver_list[] = {
-    "nreal_air",
-};
-
 static void
 nreal_air_destroy(struct xrt_builder *xb)
 {
 	free(xb);
 }
 
+
+/*
+ *
+ * 'Exported' functions.
+ *
+ */
+
 struct xrt_builder *
 nreal_air_builder_create(void)
 {

src/xrt/targets/common/target_builder_rift_s.c

@@ -40,7 +40,7 @@ enum u_logging_level rift_s_log_level;
 
 /*
  *
- * Defines & structs.
+ * Misc stuff.
  *
  */
 
@@ -50,6 +50,17 @@ DEBUG_GET_ONCE_LOG_OPTION(rift_s_log, "RIFT_S_LOG", U_LOGGING_WARN)
 DEBUG_GET_ONCE_BOOL_OPTION(rift_s_hand_tracking_as_controller, "RIFT_S_HAND_TRACKING_AS_CONTROLLERS", false)
 #endif
 
+static const char *driver_list[] = {
+    "rift-s",
+};
+
+
+/*
+ *
+ * Member functions.
+ *
+ */
+
 static xrt_result_t
 rift_s_estimate_system(struct xrt_builder *xb,
                        cJSON *config,
@@ -228,21 +239,19 @@ fail:
 	return XRT_ERROR_DEVICE_CREATION_FAILED;
 }
 
-/*
- *
- * 'Exported' functions.
- *
- */
-static const char *driver_list[] = {
-    "rift-s",
-};
-
 static void
 rift_s_destroy(struct xrt_builder *xb)
 {
 	free(xb);
 }
 
+
+/*
+ *
+ * 'Exported' functions.
+ *
+ */
+
 struct xrt_builder *
 rift_s_builder_create(void)
 {

src/xrt/targets/common/target_builder_simulavr.c

@@ -133,6 +133,13 @@ end:
 	return good;
 }
 
+
+/*
+ *
+ * Member functions.
+ *
+ */
+
 static xrt_result_t
 svr_estimate_system(struct xrt_builder *xb, cJSON *config, struct xrt_prober *xp, struct xrt_builder_estimate *estimate)
 {