diff --git a/examples/host/bare_api/CMakeLists.txt b/examples/host/bare_api/CMakeLists.txt
index 4879613b4..616edd4ac 100644
--- a/examples/host/bare_api/CMakeLists.txt
+++ b/examples/host/bare_api/CMakeLists.txt
@@ -25,3 +25,8 @@ target_include_directories(${PROJECT} PUBLIC
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
 family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/bare_api/src/tusb_config.h b/examples/host/bare_api/src/tusb_config.h
index 701aa6d90..64be41a4e 100644
--- a/examples/host/bare_api/src/tusb_config.h
+++ b/examples/host/bare_api/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -100,7 +100,7 @@
 
 // max device support (excluding hub device)
 // 1 hub typically has 4 ports
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1)
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 // Max endpoint per device
 #define CFG_TUH_ENDPOINT_MAX        8
diff --git a/examples/host/cdc_msc_hid/CMakeLists.txt b/examples/host/cdc_msc_hid/CMakeLists.txt
index dbba6bf44..d7d1a54d7 100644
--- a/examples/host/cdc_msc_hid/CMakeLists.txt
+++ b/examples/host/cdc_msc_hid/CMakeLists.txt
@@ -28,3 +28,8 @@ target_include_directories(${PROJECT} PUBLIC
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
 family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/cdc_msc_hid/src/tusb_config.h b/examples/host/cdc_msc_hid/src/tusb_config.h
index 139a921d1..4b50f2096 100644
--- a/examples/host/cdc_msc_hid/src/tusb_config.h
+++ b/examples/host/cdc_msc_hid/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -101,8 +101,8 @@
 #define CFG_TUH_MSC                 1
 #define CFG_TUH_VENDOR              0
 
-// max device support (excluding hub device)
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
+// max device support (excluding hub device): 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 //------------- HID -------------//
 #define CFG_TUH_HID_EPIN_BUFSIZE    64
diff --git a/examples/host/hid_controller/CMakeLists.txt b/examples/host/hid_controller/CMakeLists.txt
index aa50b5a52..ac3070b82 100644
--- a/examples/host/hid_controller/CMakeLists.txt
+++ b/examples/host/hid_controller/CMakeLists.txt
@@ -26,3 +26,8 @@ target_include_directories(${PROJECT} PUBLIC
 # Configure compilation flags and libraries for the example... see the corresponding function
 # in hw/bsp/FAMILY/family.cmake for details.
 family_configure_host_example(${PROJECT})
+
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/hid_controller/src/tusb_config.h b/examples/host/hid_controller/src/tusb_config.h
index e6d6f873d..2e0dd0dbe 100644
--- a/examples/host/hid_controller/src/tusb_config.h
+++ b/examples/host/hid_controller/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -101,9 +101,8 @@
 #define CFG_TUH_MSC                 0
 #define CFG_TUH_VENDOR              0
 
-// max device support (excluding hub device)
-// 1 hub typically has 4 ports
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1)
+// max device support (excluding hub device): 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 //------------- HID -------------//
 
diff --git a/examples/host/msc_file_explorer/CMakeLists.txt b/examples/host/msc_file_explorer/CMakeLists.txt
index 2c06eafee..7955b3078 100644
--- a/examples/host/msc_file_explorer/CMakeLists.txt
+++ b/examples/host/msc_file_explorer/CMakeLists.txt
@@ -32,3 +32,7 @@ target_include_directories(${PROJECT} PUBLIC
 # in hw/bsp/FAMILY/family.cmake for details.
 family_configure_host_example(${PROJECT})
 
+# Add pico-pio-usb for rp2040 since user can choose to run on bit-banging host
+if(FAMILY STREQUAL "rp2040")
+  family_add_pico_pio_usb(${PROJECT})
+endif()
diff --git a/examples/host/msc_file_explorer/src/tusb_config.h b/examples/host/msc_file_explorer/src/tusb_config.h
index ddf8368f4..eaf3ea6d4 100644
--- a/examples/host/msc_file_explorer/src/tusb_config.h
+++ b/examples/host/msc_file_explorer/src/tusb_config.h
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -101,8 +101,8 @@
 #define CFG_TUH_HID                 0 // typical keyboard + mouse device can have 3-4 HID interfaces
 #define CFG_TUH_VENDOR              0
 
-// max device support (excluding hub device)
-#define CFG_TUH_DEVICE_MAX          (CFG_TUH_HUB ? 4 : 1) // hub typically has 4 ports
+// max device support (excluding hub device): 1 hub typically has 4 ports
+#define CFG_TUH_DEVICE_MAX          (3*CFG_TUH_HUB + 1)
 
 //------------- MSC -------------//
 #define CFG_TUH_MSC_MAXLUN    4 // typical for most card reader
diff --git a/hw/bsp/rp2040/family.mk b/hw/bsp/rp2040/family.mk
index cf6b53793..25d1ad9c5 100644
--- a/hw/bsp/rp2040/family.mk
+++ b/hw/bsp/rp2040/family.mk
@@ -13,9 +13,6 @@ $(BUILD):
 all: $(BUILD)
 	$(MAKE) -C $(BUILD)
 
-clean:
-	$(RM) -rf $(BUILD)
-
 flash: flash-pyocd
 flash-uf2:
 	@$(CP) $(BUILD)/$(PROJECT).uf2 /media/$(USER)/RPI-RP2
diff --git a/src/class/cdc/cdc_host.c b/src/class/cdc/cdc_host.c
index e9c3d34cb..011ee49dc 100644
--- a/src/class/cdc/cdc_host.c
+++ b/src/class/cdc/cdc_host.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * The MIT License (MIT)
  *
  * Copyright (c) 2019 Ha Thach (tinyusb.org)
@@ -97,7 +97,7 @@ static inline uint8_t get_idx_by_ep_addr(uint8_t daddr, uint8_t ep_addr)
     }
   }
 
-  return TUSB_INDEX_INVALID;
+  return TU_INDEX_INVALID_8;
 }
 
 
@@ -124,7 +124,7 @@ uint8_t tuh_cdc_itf_get_index(uint8_t daddr, uint8_t itf_num)
     if (p_cdc->daddr == daddr && p_cdc->bInterfaceNumber == itf_num) return i;
   }
 
-  return TUSB_INDEX_INVALID;
+  return TU_INDEX_INVALID_8;
 }
 
 bool tuh_cdc_itf_get_info(uint8_t idx, tuh_cdc_itf_info_t* info)
@@ -533,7 +533,7 @@ static void process_cdc_config(tuh_xfer_t* xfer)
   uintptr_t const state = xfer->user_data;
   uint8_t const itf_num = (uint8_t) tu_le16toh(xfer->setup->wIndex);
   uint8_t const idx = tuh_cdc_itf_get_index(xfer->daddr, itf_num);
-  TU_ASSERT(idx != TUSB_INDEX_INVALID, );
+  TU_ASSERT(idx != TU_INDEX_INVALID_8, );
 
   switch(state)
   {
diff --git a/src/common/tusb_common.h b/src/common/tusb_common.h
index 957491aa9..faccf8726 100644
--- a/src/common/tusb_common.h
+++ b/src/common/tusb_common.h
@@ -75,6 +75,12 @@
 
 #include "tusb_timeout.h" // TODO remove
 
+enum
+{
+  TU_INDEX_INVALID_8 = 0xFFu
+};
+
+
 //--------------------------------------------------------------------+
 // Optional API implemented by application if needed
 // TODO move to a more ovious place/file
diff --git a/src/common/tusb_types.h b/src/common/tusb_types.h
index 7266a525e..d567bd482 100644
--- a/src/common/tusb_types.h
+++ b/src/common/tusb_types.h
@@ -273,11 +273,6 @@ enum
   CONTROL_STAGE_ACK
 };
 
-enum
-{
-  TUSB_INDEX_INVALID = 0xff
-};
-
 //--------------------------------------------------------------------+
 // USB Descriptors
 //--------------------------------------------------------------------+