initial commit

libraries/FastLED/src/platforms/io_null.h

@@ -0,0 +1,40 @@
+#pragma once
+
+
+namespace fl {
+
+// Low-level Teensy print functions that avoid ALL Arduino dependencies
+// This uses no-op implementations to prevent "_write" linker issues
+// Users should initialize their own Serial ports if they need actual output
+
+inline void print_null(const char* str) {
+    if (!str) return;
+    
+    // No-op implementation to avoid "_write" linker dependencies
+    // Teensy users should use Serial1.print() directly in their sketch for output
+    // This prevents "undefined reference to _write" errors completely
+    (void)str; // Suppress unused parameter warning
+}
+
+inline void println_null(const char* str) {
+    if (!str) return;
+    
+    // No-op implementation to avoid "_write" linker dependencies  
+    // Teensy users should use Serial1.println() directly in their sketch for output
+    (void)str; // Suppress unused parameter warning
+}
+
+// Input functions - no-op implementations for Teensy
+inline int available_null() {
+    // No-op implementation to avoid Arduino dependencies
+    // Teensy users should use Serial1.available() directly in their sketch for input
+    return 0;
+}
+
+inline int read_null() {
+    // No-op implementation to avoid Arduino dependencies
+    // Teensy users should use Serial1.read() directly in their sketch for input
+    return -1;
+}
+
+} // namespace fl