fix hid_generic_inout for TUD_ENDPOINT_ONE_DIRECTION_ONLY MCUs

Use separate endpoint numbers (EP1 OUT, EP2 IN) on MCUs with shared
FIFO that cannot support the same endpoint number in both directions.
Also add missing static qualifier to print_musb_info().

Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>

2 files changed, 11 insertions, 3 deletions

diff --git a/examples/device/hid_generic_inout/src/usb_descriptors.c b/examples/device/hid_generic_inout/src/usb_descriptors.c
index f26333d50..929b2fd3a 100644
--- a/examples/device/hid_generic_inout/src/usb_descriptors.c
+++ b/examples/device/hid_generic_inout/src/usb_descriptors.c
@@ -97,7 +97,15 @@ enum
 
 #define  CONFIG_TOTAL_LEN  (TUD_CONFIG_DESC_LEN + TUD_HID_INOUT_DESC_LEN)
 
-#define EPNUM_HID   0x01
+#if defined(TUD_ENDPOINT_ONE_DIRECTION_ONLY)
+  // MCUs that don't support a same endpoint number with different direction IN and OUT defined in tusb_mcu.h
+  //    e.g EP1 OUT & EP1 IN cannot exist together
+  #define EPNUM_HID_OUT   0x01
+  #define EPNUM_HID_IN    0x82
+#else
+  #define EPNUM_HID_OUT   0x01
+  #define EPNUM_HID_IN    0x81
+#endif
 
 uint8_t const desc_configuration[] =
 {
@@ -105,7 +113,7 @@ uint8_t const desc_configuration[] =
   TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
 
   // Interface number, string index, protocol, report descriptor len, EP Out & In address, size & polling interval
-  TUD_HID_INOUT_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID, 0x80 | EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 10)
+  TUD_HID_INOUT_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID_OUT, EPNUM_HID_IN, CFG_TUD_HID_EP_BUFSIZE, 10)
 };
 
 // Invoked when received GET CONFIGURATION DESCRIPTOR
diff --git a/src/portable/mentor/musb/dcd_musb.c b/src/portable/mentor/musb/dcd_musb.c
index d329285e9..339048473 100644
--- a/src/portable/mentor/musb/dcd_musb.c
+++ b/src/portable/mentor/musb/dcd_musb.c
@@ -494,7 +494,7 @@ static void process_bus_reset(uint8_t rhport) {
  *------------------------------------------------------------------*/
 
 #if CFG_TUSB_DEBUG >= MUSB_DEBUG
-void print_musb_info(musb_regs_t* musb_regs) {
+static void print_musb_info(musb_regs_t* musb_regs) {
   // print version, epinfo, raminfo, config_data0, fifo_size
   TU_LOG1("musb version = %u.%u\r\n", musb_regs->hwvers_bit.major, musb_regs->hwvers_bit.minor);
   TU_LOG1("Number of endpoints: %u TX, %u RX\r\n", musb_regs->epinfo_bit.tx_ep_num, musb_regs->epinfo_bit.rx_ep_num);