refactor(config): separate endpoint buffer sizes into RX and TX definitions for clarity and flexibility

8 files changed, 22 insertions, 17 deletions

diff --git a/examples/device/cdc_dual_ports/src/tusb_config.h b/examples/device/cdc_dual_ports/src/tusb_config.h
index 710c01ee2..f8c36a90d 100644
--- a/examples/device/cdc_dual_ports/src/tusb_config.h
+++ b/examples/device/cdc_dual_ports/src/tusb_config.h
@@ -104,9 +104,9 @@
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size, more is faster
-// Leave it as default size (512 for HS, 64 for FS) unless your host application
-// is able to send ZLP (Zero Length Packet) to terminate transfer !
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+// Only increase RX_EPSIZE if your host driver/application support zero-length packet (ZLP)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 #ifdef __cplusplus
  }
diff --git a/examples/device/cdc_msc/src/tusb_config.h b/examples/device/cdc_msc/src/tusb_config.h
index 3f2f05f20..c4f4374a2 100644
--- a/examples/device/cdc_msc/src/tusb_config.h
+++ b/examples/device/cdc_msc/src/tusb_config.h
@@ -104,9 +104,9 @@
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size, more is faster
-// Leave it as default size (512 for HS, 64 for FS) unless your host application
-// is able to send ZLP (Zero Length Packet) to terminate transfer !
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+// Only increase RX_EPSIZE if your host driver/application support zero-length packet (ZLP)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // MSC Buffer size of Device Mass storage
 #define CFG_TUD_MSC_EP_BUFSIZE   512
diff --git a/examples/device/cdc_msc_freertos/src/tusb_config.h b/examples/device/cdc_msc_freertos/src/tusb_config.h
index 8277b1604..33342819e 100644
--- a/examples/device/cdc_msc_freertos/src/tusb_config.h
+++ b/examples/device/cdc_msc_freertos/src/tusb_config.h
@@ -111,9 +111,9 @@
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size, more is faster
-// Leave it as default size (512 for HS, 64 for FS) unless your host application
-// is able to send ZLP (Zero Length Packet) to terminate transfer !
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+// Only increase RX_EPSIZE if your host driver/application support zero-length packet (ZLP)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // MSC Buffer size of Device Mass storage
 #define CFG_TUD_MSC_EP_BUFSIZE   512
diff --git a/examples/device/cdc_uac2/src/tusb_config.h b/examples/device/cdc_uac2/src/tusb_config.h
index 5eb2e8f74..6724b83b3 100644
--- a/examples/device/cdc_uac2/src/tusb_config.h
+++ b/examples/device/cdc_uac2/src/tusb_config.h
@@ -160,9 +160,9 @@ extern "C" {
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size, more is faster
-// Leave it as default size (512 for HS, 64 for FS) unless your host application
-// is able to send ZLP (Zero Length Packet) to terminate transfer !
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+// Only increase RX_EPSIZE if your host driver/application support zero-length packet (ZLP)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 #ifdef __cplusplus
 }
diff --git a/examples/device/printer_to_cdc/src/tusb_config.h b/examples/device/printer_to_cdc/src/tusb_config.h
index c38e8e1ee..d12313ce5 100644
--- a/examples/device/printer_to_cdc/src/tusb_config.h
+++ b/examples/device/printer_to_cdc/src/tusb_config.h
@@ -103,12 +103,14 @@ extern "C" {
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // Printer buffer sizes
 #define CFG_TUD_PRINTER_RX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
 #define CFG_TUD_PRINTER_TX_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
-#define CFG_TUD_PRINTER_EP_BUFSIZE (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_PRINTER_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_PRINTER_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 #ifdef __cplusplus
 }
diff --git a/examples/dual/dynamic_switch/src/tusb_config.h b/examples/dual/dynamic_switch/src/tusb_config.h
index af0d55f14..f9500f923 100644
--- a/examples/dual/dynamic_switch/src/tusb_config.h
+++ b/examples/dual/dynamic_switch/src/tusb_config.h
@@ -130,7 +130,8 @@ extern "C" {
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size, more is faster
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 //--------------------------------------------------------------------
 // HOST CONFIGURATION
diff --git a/examples/dual/host_hid_to_device_cdc/src/tusb_config.h b/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
index 2843e0b83..0a7137d29 100644
--- a/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
+++ b/examples/dual/host_hid_to_device_cdc/src/tusb_config.h
@@ -115,7 +115,8 @@
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 // CDC Endpoint transfer buffer size, more is faster
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 //--------------------------------------------------------------------
 // HOST CONFIGURATION
diff --git a/examples/dual/host_info_to_device_cdc/src/tusb_config.h b/examples/dual/host_info_to_device_cdc/src/tusb_config.h
index 601c27dae..8f3ed6357 100644
--- a/examples/dual/host_info_to_device_cdc/src/tusb_config.h
+++ b/examples/dual/host_info_to_device_cdc/src/tusb_config.h
@@ -115,7 +115,8 @@
 #define CFG_TUD_CDC_TX_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 256)
 
 // CDC Endpoint transfer buffer size, more is faster
-#define CFG_TUD_CDC_EP_BUFSIZE   (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_RX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
+#define CFG_TUD_CDC_TX_EPSIZE  (TUD_OPT_HIGH_SPEED ? 512 : 64)
 
 //--------------------------------------------------------------------
 // HOST CONFIGURATION