From 22572b9baa0ac7b5ef01b6346e2c0e10fea95c02 Mon Sep 17 00:00:00 2001
From: Ashley Strahle <ash@jackofclubs.com.au>
Date: Tue, 23 Jun 2026 13:12:32 +0000
Subject: [PATCH] Fix Adafruit TinyUSB API: TinyUSBDevice, writePacket,
 mounted()

---
 platformio.ini         |  1 -
 src/midi_transport.cpp | 19 +++++++++++--------
 2 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/platformio.ini b/platformio.ini
index 79713ed..88a9ee4 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -11,7 +11,6 @@ lib_deps =
     adafruit/Adafruit NeoPixel
 
 build_flags =
-    -DARDUINO_USB_MODE=0
     -DARDUINO_USB_CDC_ON_BOOT=1
 
 monitor_speed = 115200
diff --git a/src/midi_transport.cpp b/src/midi_transport.cpp
index e810ff4..ac6e80b 100644
--- a/src/midi_transport.cpp
+++ b/src/midi_transport.cpp
@@ -13,16 +13,16 @@ UsbMidiTransport::~UsbMidiTransport() {
 bool UsbMidiTransport::begin() {
     Serial.println("[MIDI] Initializing USB MIDI...");
 
-    USBDevice.setManufacturerDescriptor("Ashley Strahle");
-    USBDevice.setProductDescriptor("Loopy Foot Controller");
-    USBDevice.setSerialDescriptor("LFMIDI001");
+    TinyUSBDevice.setManufacturerDescriptor("Ashley Strahle");
+    TinyUSBDevice.setProductDescriptor("Loopy Foot Controller");
+    TinyUSBDevice.setSerialDescriptor("LFMIDI001");
 
     if (!usb_midi.begin(32)) {
         Serial.println("[MIDI] ERROR: USB MIDI init failed");
         return false;
     }
 
-    USB.begin();
+    TinyUSBDevice.begin();
     initialized = true;
     Serial.println("[MIDI] USB MIDI initialized - waiting for host");
     return true;
@@ -61,24 +61,27 @@ void UsbMidiTransport::on_midi_receive(std::function<void(const MidiEvent&)> cal
 
 void UsbMidiTransport::send_note_on(uint8_t channel, uint8_t note, uint8_t velocity) {
     if (!initialized) return;
-    usb_midi.sendNoteOn(note, velocity, channel);
+    uint8_t packet[4] = {0x09, (uint8_t)(0x90 | (channel - 1)), note, velocity};
+    usb_midi.writePacket(packet);
     Serial.printf("[MIDI OUT] Ch:%d NOTE_ON:%d:%d\n", channel, note, velocity);
 }
 
 void UsbMidiTransport::send_note_off(uint8_t channel, uint8_t note, uint8_t velocity) {
     if (!initialized) return;
-    usb_midi.sendNoteOff(note, velocity, channel);
+    uint8_t packet[4] = {0x08, (uint8_t)(0x80 | (channel - 1)), note, velocity};
+    usb_midi.writePacket(packet);
     Serial.printf("[MIDI OUT] Ch:%d NOTE_OFF:%d:%d\n", channel, note, velocity);
 }
 
 void UsbMidiTransport::send_cc(uint8_t channel, uint8_t cc, uint8_t value) {
     if (!initialized) return;
-    usb_midi.sendControlChange(cc, value, channel);
+    uint8_t packet[4] = {0x0B, (uint8_t)(0xB0 | (channel - 1)), cc, value};
+    usb_midi.writePacket(packet);
     Serial.printf("[MIDI OUT] Ch:%d CC:%d:%d\n", channel, cc, value);
 }
 
 bool UsbMidiTransport::is_connected() {
-    return initialized && usb_midi.isMounted();
+    return initialized && TinyUSBDevice.mounted();
 }
 
 void UsbMidiTransport::parse_midi_packet(const uint8_t* buffer, uint32_t size, MidiEvent& event) {