Initial commit

platform/UsbStringDescriptor.h

@@ -0,0 +1,25 @@
+#pragma once
+#include "tusb.h"
+
+template<std::size_t N>
+struct UsbStringDescriptor
+{
+    u8 length = 2 * N;
+    u8 descriptorType = TUSB_DESC_STRING;
+    char16_t string[N - 1];
+
+    explicit constexpr UsbStringDescriptor(const char16_t(&str)[N])
+    {
+        for (size_t i = 0; i < N - 1; i++)
+        {
+            string[i] = str[i];
+        }
+    }
+
+    explicit constexpr UsbStringDescriptor(u16 languageId)
+    {
+        string[0] = languageId;
+    }
+};
+
+#define USB_STRING_DESCRIPTOR(str)  ({ static const UsbStringDescriptor descriptor(str); (const u16*)&descriptor; })