Make saving the user configuration faster by only writing the part of the EEPROM which actually contains the user configuration. Resolves #111.

right/src/config_parser/config_globals.c

@@ -6,6 +6,7 @@ static uint8_t hardwareConfig[HARDWARE_CONFIG_SIZE];
 static uint8_t ATTR_DATA2 stagingUserConfig[USER_CONFIG_SIZE];
 static uint8_t validatedUserConfig[USER_CONFIG_SIZE];
 
+uint16_t ValidatedUserConfigLength;
 config_buffer_t HardwareConfigBuffer = { hardwareConfig };
 config_buffer_t StagingUserConfigBuffer = { stagingUserConfig };
 config_buffer_t ValidatedUserConfigBuffer = { validatedUserConfig };

right/src/config_parser/config_globals.h

@@ -17,6 +17,7 @@
 // Variables:
 
     extern bool ParserRunDry;
+    extern uint16_t ValidatedUserConfigLength;
     extern config_buffer_t HardwareConfigBuffer;
     extern config_buffer_t StagingUserConfigBuffer;
     extern config_buffer_t ValidatedUserConfigBuffer;

right/src/config_parser/parse_config.c

@@ -51,7 +51,6 @@ parser_error_t ParseConfig(config_buffer_t *buffer)
     const char *deviceName = ReadString(buffer, &len);
     uint16_t doubleTapSwitchLayerTimeout = ReadUInt16(buffer);
 
-    (void)userConfigLength;
     (void)dataModelMajorVersion;
     (void)dataModelMinorVersion;
     (void)dataModelPatchVersion;
@@ -141,6 +140,8 @@ parser_error_t ParseConfig(config_buffer_t *buffer)
 
         // Update LED brightnesses and reinitialize LED drivers
 
+        ValidatedUserConfigLength = userConfigLength;
+
         IconsAndLayerTextsBrightness = iconsAndLayerTextsBrightness;
         AlphanumericSegmentsBrightness = alphanumericSegmentsBrightness;
         KeyBacklightBrightness = keyBacklightBrightness;