diff --git a/src/class/audio/audio_device.c b/src/class/audio/audio_device.c
index 698fba566..82682f162 100644
--- a/src/class/audio/audio_device.c
+++ b/src/class/audio/audio_device.c
@@ -76,26 +76,19 @@
 // Linear buffer in case target MCU is not capable of handling a ring buffer FIFO e.g. no hardware buffer
 // is available or driver is would need to be changed dramatically
 
-// Only STM32 synopsys and dcd_transdimension use non-linear buffer for now
-// Synopsys detection copied from dcd_synopsys.c (refactor later on)
-#if defined (STM32F105x8) || defined (STM32F105xB) || defined (STM32F105xC) || \
-    defined (STM32F107xB) || defined (STM32F107xC)
-#define STM32F1_SYNOPSYS
-#endif
-
-#if defined (STM32L475xx) || defined (STM32L476xx) ||                          \
-    defined (STM32L485xx) || defined (STM32L486xx) || defined (STM32L496xx) || \
-    defined (STM32L4R5xx) || defined (STM32L4R7xx) || defined (STM32L4R9xx) || \
-    defined (STM32L4S5xx) || defined (STM32L4S7xx) || defined (STM32L4S9xx)
-#define STM32L4_SYNOPSYS
-#endif
-
-#if (CFG_TUSB_MCU == OPT_MCU_STM32F1 && defined(STM32F1_SYNOPSYS)) || \
+// Only STM32 and dcd_transdimension use non-linear buffer for now
+#if CFG_TUSB_MCU == OPT_MCU_STM32F0                               || \
+    CFG_TUSB_MCU == OPT_MCU_STM32F1                               || \
     CFG_TUSB_MCU == OPT_MCU_STM32F2                               || \
+    CFG_TUSB_MCU == OPT_MCU_STM32F3                               || \
     CFG_TUSB_MCU == OPT_MCU_STM32F4                               || \
     CFG_TUSB_MCU == OPT_MCU_STM32F7                               || \
     CFG_TUSB_MCU == OPT_MCU_STM32H7                               || \
-    (CFG_TUSB_MCU == OPT_MCU_STM32L4 && defined(STM32L4_SYNOPSYS)) || \
+    CFG_TUSB_MCU == OPT_MCU_STM32L0                               || \
+    CFG_TUSB_MCU == OPT_MCU_STM32L1                               || \
+    CFG_TUSB_MCU == OPT_MCU_STM32L4                               || \
+    CFG_TUSB_MCU == OPT_MCU_STM32G4                               || \
+    CFG_TUSB_MCU == OPT_MCU_STM32WB                               || \
     CFG_TUSB_MCU == OPT_MCU_RX63X                                 || \
     CFG_TUSB_MCU == OPT_MCU_RX65X                                 || \
     CFG_TUSB_MCU == OPT_MCU_RX72N                                 || \
diff --git a/src/device/dcd.h b/src/device/dcd.h
index ef92d71d0..2980cc4e6 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -169,10 +169,10 @@ void dcd_edpt_clear_stall     (uint8_t rhport, uint8_t ep_addr);
 
 // Allocate packet buffer used by ISO endpoints
 // Some MCU need manual packet buffer allocation, we allocation largest size to avoid clustering
-bool dcd_edpt_iso_alloc(uint8_t rhport, uint8_t ep_addr, uint16_t largest_packet_size);
+TU_ATTR_WEAK bool dcd_edpt_iso_alloc(uint8_t rhport, uint8_t ep_addr, uint16_t largest_packet_size);
 
 // Configure and enable an ISO endpoint according to descriptor
-bool dcd_edpt_iso_activate(uint8_t rhport,  tusb_desc_endpoint_t const * p_endpoint_desc);
+TU_ATTR_WEAK bool dcd_edpt_iso_activate(uint8_t rhport,  tusb_desc_endpoint_t const * p_endpoint_desc);
 //--------------------------------------------------------------------+
 // Event API (implemented by stack)
 //--------------------------------------------------------------------+