diff --git a/doxygen/porting.md b/doxygen/porting.md
index be917d6f..00aad6a0 100644
--- a/doxygen/porting.md
+++ b/doxygen/porting.md
@@ -79,7 +79,6 @@ After the USB device is setup, the USB device code works by processing events on
 All of the code for the low-level device API is in `src/portable/<vendor>/<chip family>/dcd_<chip family>.c`.
 
 #### Device Setup
-`dcd_connect`, `dcd_disconnect` and `dcd_set_config` are not currently used and can be left empty.
 
 ##### dcd_init
 Initializes the USB peripheral for device mode and enables it.
@@ -89,6 +88,9 @@ Called when the device is given a new bus address.
 
 If your peripheral automatically changes address during enumeration (like the nrf52) you may leave this empty and also no queue an event for the corresponding SETUP packet.
 
+##### dcd_set_config
+Called when the device received SET_CONFIG request, you can leave this empty if your peripheral does not require any specific action.
+
 #### Special events
 You must let TinyUSB know when certain events occur so that it can continue its work. There are a few methods you can call to queue events for TinyUSB to process.
 
diff --git a/src/device/dcd.h b/src/device/dcd.h
index db84df83..6b1356cb 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -90,14 +90,14 @@ typedef struct ATTR_ALIGNED(4)
 TU_VERIFY_STATIC(sizeof(dcd_event_t) <= 12, "size is not correct");
 
 /*------------------------------------------------------------------*/
-/* Device API (Weak is optional)
+/* Device API
  *------------------------------------------------------------------*/
-bool dcd_init             (uint8_t rhport);
-void dcd_set_address      (uint8_t rhport, uint8_t dev_addr);
-void dcd_set_config       (uint8_t rhport, uint8_t config_num);
+bool dcd_init       (uint8_t rhport);
+void dcd_int_enable (uint8_t rhport);
+void dcd_int_disable(uint8_t rhport);
 
-void dcd_connect          (uint8_t rhport) ATTR_WEAK;
-void dcd_disconnect       (uint8_t rhport) ATTR_WEAK;
+void dcd_set_address(uint8_t rhport, uint8_t dev_addr);
+void dcd_set_config (uint8_t rhport, uint8_t config_num);
 
 /*------------------------------------------------------------------*/
 /* Event Function
diff --git a/src/portable/microchip/samd21/dcd_samd21.c b/src/portable/microchip/samd21/dcd_samd21.c
index dda75cee..5436259d 100644
--- a/src/portable/microchip/samd21/dcd_samd21.c
+++ b/src/portable/microchip/samd21/dcd_samd21.c
@@ -82,15 +82,6 @@ bool dcd_init (uint8_t rhport)
   return true;
 }
 
-void dcd_connect (uint8_t rhport)
-{
-
-}
-void dcd_disconnect (uint8_t rhport)
-{
-
-}
-
 void dcd_set_address (uint8_t rhport, uint8_t dev_addr)
 {
   (void) rhport;
diff --git a/src/portable/microchip/samd51/dcd_samd51.c b/src/portable/microchip/samd51/dcd_samd51.c
index d0ad17f9..0e8b23d8 100644
--- a/src/portable/microchip/samd51/dcd_samd51.c
+++ b/src/portable/microchip/samd51/dcd_samd51.c
@@ -82,15 +82,6 @@ bool dcd_init (uint8_t rhport)
   return true;
 }
 
-void dcd_connect (uint8_t rhport)
-{
-  (void) rhport;
-}
-void dcd_disconnect (uint8_t rhport)
-{
-  (void) rhport;
-}
-
 void dcd_set_address (uint8_t rhport, uint8_t dev_addr)
 {
   (void) rhport;
diff --git a/src/portable/nordic/nrf5x/dcd_nrf5x.c b/src/portable/nordic/nrf5x/dcd_nrf5x.c
index e1e53a83..2118a4bd 100644
--- a/src/portable/nordic/nrf5x/dcd_nrf5x.c
+++ b/src/portable/nordic/nrf5x/dcd_nrf5x.c
@@ -195,15 +195,6 @@ bool dcd_init (uint8_t rhport)
   return true;
 }
 
-void dcd_connect (uint8_t rhport)
-{
-  (void) rhport;
-}
-void dcd_disconnect (uint8_t rhport)
-{
-  (void) rhport;
-}
-
 void dcd_set_address (uint8_t rhport, uint8_t dev_addr)
 {
   (void) rhport;
diff --git a/src/portable/nxp/lpc11_13_15/dcd_lpc11_13_15.c b/src/portable/nxp/lpc11_13_15/dcd_lpc11_13_15.c
index 9c5991ce..26674d9e 100644
--- a/src/portable/nxp/lpc11_13_15/dcd_lpc11_13_15.c
+++ b/src/portable/nxp/lpc11_13_15/dcd_lpc11_13_15.c
@@ -157,12 +157,6 @@ bool tusb_hal_init(void)
   return true;
 }
 
-void dcd_connect(uint8_t rhport)
-{
-  (void) rhport;
-  LPC_USB->DEVCMDSTAT |= CMDSTAT_DEVICE_CONNECT_MASK;
-}
-
 void dcd_set_config(uint8_t rhport, uint8_t config_num)
 {
 
diff --git a/src/portable/nxp/lpc17_40/dcd_lpc17_40.c b/src/portable/nxp/lpc17_40/dcd_lpc17_40.c
index 8504cbf5..8763d1e1 100644
--- a/src/portable/nxp/lpc17_40/dcd_lpc17_40.c
+++ b/src/portable/nxp/lpc17_40/dcd_lpc17_40.c
@@ -202,12 +202,6 @@ bool dcd_init(uint8_t rhport)
   return TUSB_ERROR_NONE;
 }
 
-void dcd_connect(uint8_t rhport)
-{
-  (void) rhport;
-  sie_write(SIE_CMDCODE_DEVICE_STATUS, 1, 1);
-}
-
 void dcd_set_address(uint8_t rhport, uint8_t dev_addr)
 {
   (void) rhport;
diff --git a/src/portable/nxp/lpc18_43/dcd_lpc18_43.c b/src/portable/nxp/lpc18_43/dcd_lpc18_43.c
index 8f5e3b45..9423b64a 100644
--- a/src/portable/nxp/lpc18_43/dcd_lpc18_43.c
+++ b/src/portable/nxp/lpc18_43/dcd_lpc18_43.c
@@ -92,11 +92,6 @@ static dcd_data_t* const dcd_data_ptr[2] =
 //--------------------------------------------------------------------+
 // CONTROLLER API
 //--------------------------------------------------------------------+
-void dcd_connect(uint8_t rhport)
-{
-  LPC_USB[rhport]->USBCMD_D |= BIT_(0);
-}
-
 void dcd_set_address(uint8_t rhport, uint8_t dev_addr)
 {
   LPC_USB[rhport]->DEVICEADDR = (dev_addr << 25) | BIT_(24);