From 6d1706cd70a7e8777ab9a1cd7ed3e8cd3e22637b Mon Sep 17 00:00:00 2001
From: Rodrigo Garcia <rodrigo.garcia@espressif.com>
Date: Wed, 23 Aug 2023 20:31:29 -0300
Subject: [PATCH] allows setting buffer size after or before begin()
---
cores/esp32/HWCDC.cpp | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/cores/esp32/HWCDC.cpp b/cores/esp32/HWCDC.cpp
index cc0202f657c..5dcc1b4b567 100644
--- a/cores/esp32/HWCDC.cpp
+++ b/cores/esp32/HWCDC.cpp
@@ -173,9 +173,18 @@ void HWCDC::begin(unsigned long baud)
if(tx_lock == NULL) {
tx_lock = xSemaphoreCreateMutex();
}
- setRxBufferSize(256);//default if not preset
- setTxBufferSize(256);//default if not preset
-
+ //RX Buffer default has 256 bytes if not preset
+ if(rx_queue == NULL) {
+ if (!setRxBufferSize(256)) {
+ log_e("HW CDC RX Buffer error");
+ }
+ }
+ //TX Buffer default has 256 bytes if not preset
+ if (tx_ring_buf == NULL) {
+ if (!setTxBufferSize(256)) {
+ log_e("HW CDC TX Buffer error");
+ }
+ }
usb_serial_jtag_ll_disable_intr_mask(USB_SERIAL_JTAG_LL_INTR_MASK);
usb_serial_jtag_ll_clr_intsts_mask(USB_SERIAL_JTAG_LL_INTR_MASK);
usb_serial_jtag_ll_ena_intr_mask(USB_SERIAL_JTAG_INTR_SERIAL_IN_EMPTY | USB_SERIAL_JTAG_INTR_SERIAL_OUT_RECV_PKT | USB_SERIAL_JTAG_INTR_BUS_RESET);