diff --git a/.gitignore b/.gitignore
index a5f1b11..0eb1179 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1 @@
-/build/**/*
+/*/**/*
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d886277..511826c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,7 +15,7 @@ target_sources(${PROJECT} PRIVATE
 	bt_device.c
 	hid_report.c
 	main.c
-	usb_descriptors.c
+	#usb_descriptors.c
 	usb_device.c
 	usb_host.c
 )
@@ -38,7 +38,7 @@ target_link_libraries(${PROJECT} PRIVATE
 	pico_pio_usb
 	pico_stdlib
 	tinyusb_board
-	tinyusb_device
+	#tinyusb_device
 	tinyusb_host
 	tinyusb_pico_pio_usb
 )
diff --git a/bt_device.c b/bt_device.c
index a2557e2..fe728a2 100644
--- a/bt_device.c
+++ b/bt_device.c
@@ -45,9 +45,6 @@ const uint8_t adv_data_len = sizeof(adv_data);
 static void bt_hid_setup(void);
 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size);
 
-//extern uint8_t desc_hid_report[];
-//extern uint16_t desc_hid_report_len;
-
 // start BTstack
 void btstack_main(void){
 	bt_hid_setup();
diff --git a/main.c b/main.c
index c0695b4..3a40cc8 100644
--- a/main.c
+++ b/main.c
@@ -27,7 +27,7 @@ int main(void) {
 	usb_host_init();
 
 	// init and run usb device
-	usb_device_init();
+	//usb_device_init();
 
 	while (true) {
 		switch ( get_host_state() ) {
@@ -64,8 +64,8 @@ int main(void) {
 				break;
 		}
 		tuh_task(); // tinyusb host task
-		tud_task(); // tinyusb device task
-		tud_cdc_write_flush();
+		//tud_task(); // tinyusb device task
+		//tud_cdc_write_flush();
 	}
 
 	return 0;
diff --git a/tusb_config.h b/tusb_config.h
index 48266f1..3d997b0 100644
--- a/tusb_config.h
+++ b/tusb_config.h
@@ -39,7 +39,8 @@
 #endif
 
 // Enable device stack
-#define CFG_TUD_ENABLED		1
+//#define CFG_TUD_ENABLED		1
+#define CFG_TUD_ENABLED		0
 
 // Enable host stack
 #define CFG_TUH_ENABLED     1
diff --git a/usb_device.c b/usb_device.c
index fb8c34d..5e85e82 100644
--- a/usb_device.c
+++ b/usb_device.c
@@ -44,18 +44,22 @@ uint16_t tud_hid_get_report_cb(uint8_t instance, uint8_t report_id, hid_report_t
 
 // print message to CDC in raw hex
 void cdc_print_hex(uint8_t const* msg, uint16_t msg_len) {
-	char tempbuf[8];
+	(void) msg;
+	(void) msg_len;
+	/*char tempbuf[8];
 	size_t count;
 	for (int i=0; i<msg_len; i++) {
 		count=sprintf(tempbuf, "%02X ", msg[i]);
 		tud_cdc_write(tempbuf, count);
 	}
-	tud_cdc_write_str("\n");
+	tud_cdc_write_str("\n");*/
 }
 
 // print text message to CDC
 void cdc_print_str(char const* msg, uint16_t msg_len) {
-	tud_cdc_write(msg, msg_len);
+	(void) msg;
+	(void) msg_len;
+	//tud_cdc_write(msg, msg_len);
 }
 
 void cdc_print_msg(char const* msg) {