diff --git a/README.md b/README.md
index 87b69c2..6b210f3 100644
--- a/README.md
+++ b/README.md
@@ -1,18 +1,29 @@
 # Pico-Game-Controller
 
-WIP code for a rhythm game controller using a Raspberry Pi Pico.  Intended for SDVX but is capable of handling 11 buttons, 11 LEDs, and 2 encoders.
+WIP code for a rhythm game controller using a Raspberry Pi Pico. Intended for SDVX but is capable of handling 11 buttons, 11 LEDs, and 2 encoders.
 
 Currently working/fixed:
+
 - Gamepad mode - untested on EAC - default boot mode
 - Keyboard & Mouse Mode - limited to 6KRO - hold btn-a to enter kb mode
 - HID LEDs with Reactive LED fallback - untested
 - sdvx/iidx spoof - untested on EAC
 - 1000hz polling
-- Fix 0-~71% encoder rollover in gamepad mode, uint32 max val isn't divisible evenly by ppr*4 for joystick - thanks friends
+- Fix 0-~71% encoder rollover in gamepad mode, uint32 max val isn't divisible evenly by ppr\*4 for joystick - thanks friends
 - Switch and LED pins are now staggered for easier wiring
 
 TODO:
+
 - Store last mode in flash memory https://www.raspberrypi.org/forums/viewtopic.php?t=305570
 - nkro
 - debounce
 - split input updating into pi pico's second core?
+
+How to Use:
+
+- For basic flashing, see README in build_uf2
+- Otherwise, setup the C++ environment for the Pi Pico as per https://datasheets.raspberrypi.org/pico/getting-started-with-pico.pdf
+- Build pico-examples directory once to ensure all the tinyusb and other libraries are there. You might have to move the pico-sdk folder into pico-examples/build for it to play nice.
+- Move pico-sdk back outside to the same level directory as Pico-Game-Controller.
+- Open Pico-Game-Controller in VSCode(assuming this is setup for the Pi Pico) and see if everything builds.
+- Tweakable parameters: Pinout, bindings in pico_game_controller.c, USB device reporting as SDVX/IIDX(con_mode) in usb_descriptors.c
diff --git a/build_uf2/Pico_Game_Controller.uf2 b/build_uf2/Pico_Game_Controller.uf2
index 0f2cb55..05ecc1a 100644
Binary files a/build_uf2/Pico_Game_Controller.uf2 and b/build_uf2/Pico_Game_Controller.uf2 differ
diff --git a/src/pico_game_controller.c b/src/pico_game_controller.c
index 8f93b73..a4be11a 100644
--- a/src/pico_game_controller.c
+++ b/src/pico_game_controller.c
@@ -1,8 +1,8 @@
 /*
- * Pico SDVX
+ * Pico Game Controller
  * @author SpeedyPotato
  *
- * Based off dev_hid_composite, mdxtinkernick/pico_encoders, and
+ * Based off tinyusb's hid_composite, mdxtinkernick/pico_encoders, and
  * Drewol/rp2040-gamecon
  */
 
@@ -343,9 +343,11 @@ int main(void) {
 // Invoked when received GET_REPORT control request
 // Application must fill buffer report's content and return its length.
 // Return zero will cause the stack to STALL request
-uint16_t tud_hid_get_report_cb(uint8_t report_id, hid_report_type_t report_type,
-                               uint8_t *buffer, uint16_t reqlen) {
+uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id,
+                               hid_report_type_t report_type, uint8_t* buffer,
+                               uint16_t reqlen) {
   // TODO not Implemented
+  (void)itf;
   (void)report_id;
   (void)report_type;
   (void)buffer;
@@ -356,8 +358,10 @@ uint16_t tud_hid_get_report_cb(uint8_t report_id, hid_report_type_t report_type,
 
 // Invoked when received SET_REPORT control request or
 // received data on OUT endpoint ( Report ID = 0, Type = 0 )
-void tud_hid_set_report_cb(uint8_t report_id, hid_report_type_t report_type,
-                           uint8_t const *buffer, uint16_t bufsize) {
+void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id,
+                           hid_report_type_t report_type, uint8_t const* buffer,
+                           uint16_t bufsize) {
+  (void)itf;
   if (report_id == 2 && report_type == HID_REPORT_TYPE_OUTPUT &&
       buffer[0] == 2 && bufsize >= sizeof(lights_report))  // light data
   {
diff --git a/src/tusb_config.h b/src/tusb_config.h
index 42d7783..071ae69 100644
--- a/src/tusb_config.h
+++ b/src/tusb_config.h
@@ -34,21 +34,40 @@ extern "C" {
 // COMMON CONFIGURATION
 //--------------------------------------------------------------------
 
-// defined by compiler flags for flexibility
+// defined by board.mk
 #ifndef CFG_TUSB_MCU
 #error CFG_TUSB_MCU must be defined
 #endif
 
-#if CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX ||   \
-    CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || CFG_TUSB_MCU == OPT_MCU_NUC505 || \
-    CFG_TUSB_MCU == OPT_MCU_CXD56
-#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_DEVICE | OPT_MODE_HIGH_SPEED)
+// RHPort number used for device can be defined by board.mk, default to port 0
+#ifndef BOARD_DEVICE_RHPORT_NUM
+#define BOARD_DEVICE_RHPORT_NUM 0
+#endif
+
+// RHPort max operational speed can defined by board.mk
+// Default to Highspeed for MCU with internal HighSpeed PHY (can be port
+// specific), otherwise FullSpeed
+#ifndef BOARD_DEVICE_RHPORT_SPEED
+#if (CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_LPC43XX ||   \
+     CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX || CFG_TUSB_MCU == OPT_MCU_NUC505 || \
+     CFG_TUSB_MCU == OPT_MCU_CXD56)
+#define BOARD_DEVICE_RHPORT_SPEED OPT_MODE_HIGH_SPEED
 #else
-#define CFG_TUSB_RHPORT0_MODE OPT_MODE_DEVICE
+#define BOARD_DEVICE_RHPORT_SPEED OPT_MODE_FULL_SPEED
+#endif
+#endif
+
+// Device mode with rhport and speed defined by board.mk
+#if BOARD_DEVICE_RHPORT_NUM == 0
+#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
+#elif BOARD_DEVICE_RHPORT_NUM == 1
+#define CFG_TUSB_RHPORT1_MODE (OPT_MODE_DEVICE | BOARD_DEVICE_RHPORT_SPEED)
+#else
+#error "Incorrect RHPort configuration"
 #endif
 
 #ifndef CFG_TUSB_OS
-#define CFG_TUSB_OS OPT_OS_PICO
+#define CFG_TUSB_OS OPT_OS_NONE
 #endif
 
 // CFG_TUSB_DEBUG is defined by compiler in DEBUG build
@@ -84,7 +103,7 @@ extern "C" {
 #define CFG_TUD_VENDOR 0
 
 // HID buffer size Should be sufficient to hold ID (if any) + Data
-#define CFG_TUD_HID_BUFSIZE 16
+#define CFG_TUD_HID_EP_BUFSIZE 16
 
 #ifdef __cplusplus
 }
diff --git a/src/usb_descriptors.c b/src/usb_descriptors.c
index 3c52b6d..aa96807 100644
--- a/src/usb_descriptors.c
+++ b/src/usb_descriptors.c
@@ -48,7 +48,6 @@
 //--------------------------------------------------------------------+
 // Device Descriptors
 //--------------------------------------------------------------------+
-
 tusb_desc_device_t const desc_device = {
     .bLength = sizeof(tusb_desc_device_t),
     .bDescriptorType = TUSB_DESC_DEVICE,
@@ -70,8 +69,8 @@ tusb_desc_device_t const desc_device = {
 
 // Invoked when received GET DEVICE DESCRIPTOR
 // Application return pointer to descriptor
-uint8_t const *tud_descriptor_device_cb(void) {
-  return (uint8_t const *)&desc_device;
+uint8_t const* tud_descriptor_device_cb(void) {
+  return (uint8_t const*)&desc_device;
 }
 
 //--------------------------------------------------------------------+
@@ -87,7 +86,10 @@ uint8_t const desc_hid_report[] = {
 // Invoked when received GET HID REPORT DESCRIPTOR
 // Application return pointer to descriptor
 // Descriptor contents must exist long enough for transfer to complete
-uint8_t const *tud_hid_descriptor_report_cb(void) { return desc_hid_report; }
+uint8_t const* tud_hid_descriptor_report_cb(uint8_t itf) {
+  (void)itf;
+  return desc_hid_report;
+}
 
 //--------------------------------------------------------------------+
 // Configuration Descriptor
@@ -105,16 +107,16 @@ uint8_t const desc_configuration[] = {
     TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN,
                           TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
 
-    // Interface number, string index, protocol, report descriptor len, EP In &
-    // Out address, size & polling interval
-    TUD_HID_DESCRIPTOR(ITF_NUM_HID, 0, HID_PROTOCOL_NONE,
-                       sizeof(desc_hid_report), EPNUM_HID, CFG_TUD_HID_BUFSIZE,
-                       1)};
+    // Interface number, string index, protocol, report descriptor len, EP In
+    // address, size & polling interval
+    TUD_HID_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE,
+                       sizeof(desc_hid_report), EPNUM_HID,
+                       CFG_TUD_HID_EP_BUFSIZE, 1)};
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR
 // Application return pointer to descriptor
 // Descriptor contents must exist long enough for transfer to complete
-uint8_t const *tud_descriptor_configuration_cb(uint8_t index) {
+uint8_t const* tud_descriptor_configuration_cb(uint8_t index) {
   (void)index;  // for multiple configurations
   return desc_configuration;
 }
@@ -127,7 +129,7 @@ uint8_t const *tud_descriptor_configuration_cb(uint8_t index) {
 #define iidx_prod "beatmania IIDX controller premium model"
 
 // array of pointer to string descriptors
-char const *string_desc_arr[] = {
+char const* string_desc_arr[] = {
     (const char[]){0x09, 0x04},  // 0: is supported language is English (0x0409)
     "Konami Amusement",          // 1: Manufacturer
     con_mode ? iidx_prod : sdvx_prod,  // 2: Product
@@ -139,7 +141,7 @@ static uint16_t _desc_str[32];
 // Invoked when received GET STRING DESCRIPTOR request
 // Application return pointer to descriptor, whose contents must exist long
 // enough for transfer to complete
-uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
+uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
   (void)langid;
 
   uint8_t chr_count;
@@ -148,17 +150,19 @@ uint16_t const *tud_descriptor_string_cb(uint8_t index, uint16_t langid) {
     memcpy(&_desc_str[1], string_desc_arr[0], 2);
     chr_count = 1;
   } else {
-    // Convert ASCII string into UTF-16
+    // Note: the 0xEE index string is a Microsoft OS 1.0 Descriptors.
+    // https://docs.microsoft.com/en-us/windows-hardware/drivers/usbcon/microsoft-defined-usb-descriptors
 
     if (!(index < sizeof(string_desc_arr) / sizeof(string_desc_arr[0])))
       return NULL;
 
-    const char *str = string_desc_arr[index];
+    const char* str = string_desc_arr[index];
 
     // Cap at max char
     chr_count = strlen(str);
     if (chr_count > 31) chr_count = 31;
 
+    // Convert ASCII string into UTF-16
     for (uint8_t i = 0; i < chr_count; i++) {
       _desc_str[1 + i] = str[i];
     }