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build: enable USB CDC companion transport for ESP32-S3 boards (#77)

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* build: enable USB CDC companion transport for ESP32-S3 boards

* build: detect USB CDC companion support from board overlay

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
Jonathan Caicedo
2026-08-28 10:07:40 +02:00
committed by GitHub
co-authored by Copilot Autofix powered by AI
parent 27ea7e41a5
commit 7b8b66cb4c
1 changed files with 20 additions and 1 deletions
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build.sh
+20 -1
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@@ -272,8 +272,27 @@ if [[ $1 == "esp32" ]]; then
if [[ $2 == "companions" ]]; then
# build ESP32 companions (production is the default)
#
# ESP32-S3 boards that include esp32s3_usb_otg.dtsi in their overlay
# get the USB CDC-ACM companion transport enabled via esp32s3_usb.conf.
# This gives the full companion protocol over native USB (Web Serial /
# app.meshcore.io) in addition to BLE. Boards without the OTG DTSI
# (Heltec V3/CP2102, Wireless Tracker V1, C3/C6, classic ESP32) are
# unaffected — they use BLE or serial_companion instead.
usb_conf=""
board_stem="${board%%/*}"
overlay="zephcore/boards/esp32/${board_stem}/board.overlay"
if [[ $board =~ esp32s3 && -f "$overlay" ]] && grep -q 'esp32s3_usb_otg\.dtsi' "$overlay"; then
usb_conf="boards/common/esp32s3_usb.conf"
fi
echo "Now building $board companion"
west build -b "$board" zephcore --pristine --sysbuild
if [[ -n "$usb_conf" ]]; then
echo " USB CDC companion: enabled ($usb_conf)"
west build -b "$board" zephcore --pristine --sysbuild -- -DEXTRA_CONF_FILE="$usb_conf"
else
west build -b "$board" zephcore --pristine --sysbuild
fi
FLASH_SIZE=$(
python3 -c '
import re