Add detection of CM4 module

- Fixes #112.

Author: martignoni

classes/local/utils.php

@@ -64,7 +64,7 @@ class utils {
      * | A | 00-03 | PCB Revision  | The PCB revision number                            |
      * | B | 04-11 | Model name    | A, B, A+, B+, 2B, Alpha, CM1, unknown, 3B, Zero,   |
      * |   |       |               | CM3, unknown, Zero W, 3B+, 3A+, internal, CM3+,    |
-     * |   |       |               | 4B, Zero 2 W, 400, CM4                             |
+     * |   |       |               | 4B, Zero 2 W, 400, CM4, CM4S                       |
      * | C | 12-15 | Processor     | BCM2835, BCM2836, BCM2837, BCM2711                 |
      * | D | 16-19 | Manufacturer  | Sony UK, Egoman, Embest, Sony Japan,               |
      * |   |       |               | Embest, Stadium                                    |
@@ -96,7 +96,7 @@ public static function get_hardware_model() {
         $memorysizes = array('256MB', '512MB', '1GB', '2GB', '4GB', '8GB');
         $models = array('A', 'B', 'A+', 'B+', '2B', 'Alpha', 'CM1', 'Unknown',
                 '3B', 'Zero', 'CM3', 'Unknown', 'ZeroW', '3B+', '3A+', 'Internal use',
-                'CM3+', '4B', 'Zero2W', '400', 'CM4');
+                'CM3+', '4B', 'Zero2W', '400', 'CM4', 'CM4S');
         $processors = array('BCM2835', 'BCM2836', 'BCM2837', 'BCM2711');
         $manufacturers = array('Sony UK', 'Egoman', 'Embest', 'Sony Japan',
                 'Embest', 'Stadium');