Add needed support bits for the Meshstick

bin/config.d/lora-usb-meshstick-1262.yaml

@@ -0,0 +1,14 @@
+Lora:
+  Module: sx1262
+  CS: 0
+  IRQ: 6
+  Reset: 2
+  Busy: 4
+  RXen: 1
+  DIO2_AS_RF_SWITCH: true
+  spidev: ch341
+  DIO3_TCXO_VOLTAGE: true
+#  USB_Serialnum: 12345678
+  USB_PID: 0x5512
+  USB_VID: 0x1A86
+  SX126X_MAX_POWER: 22

src/platform/portduino/PortduinoGlue.cpp

@@ -366,6 +366,14 @@ void portduinoSetup()
                         cleanupNameForAutoconf("lora-hat-" + std::string(hat_vendor) + "-" + autoconf_product + ".yaml");
                 } else if (found_ch341) {
                     product_config = cleanupNameForAutoconf("lora-usb-" + std::string(autoconf_product) + ".yaml");
+                    // look for more data after the null terminator
+                    size_t len = strlen(autoconf_product);
+                    if (len < 75) {
+                        memcpy(portduino_config.device_id, autoconf_product + len + 1, 16);
+                        if (!memfll(portduino_config.device_id, '\0', 16) && !memfll(portduino_config.device_id, 0xff, 16)) {
+                            portduino_config.has_device_id = true;
+                        }
+                    }
                 }
 
                 // Don't try to automatically find config for a device with RAK eeprom.

src/platform/portduino/USBHal.h

@@ -64,7 +64,7 @@ class Ch341Hal : public RadioLibHal
     void getProductString(char *_product_string, size_t len)
     {
         len = len > 95 ? 95 : len;
-        strncpy(_product_string, pinedio.product_string, len);
+        memcpy(_product_string, pinedio.product_string, len);
     }
 
     void init() override {}