What the developer wrote
Authored by Tads
fix: Krux script wrong baudrate for dock (#792)
What changed, and why it matters
This commit fixes a shell script that sets the serial communication speed (baudrate) when flashing Krux firmware to certain hardware devices. Previously, the 'dock' device was missing from the list that should use a 1.5 Mbps baudrate, which could cause flashing to fail or be unreliable for that device. There is no security vulnerability here—it's a device compatibility/operational bug fix.
No security action needed. Treat as a normal device-support bug fix. Users flashing to maixpy_dock should update to ensure reliable flashing.
Security signals we found
No strong security signals were identified.
Evidence from the diff
In the krux shell script, the BAUDRATE variable is selected based on the target device. The patch adds maixpy_dock to the condition that sets BAUDRATE=1500000, alongside maixpy_m5stickv. It also removes the redundant BAUDRATE assignment inside the m5stickv-specific USB vendor/product block. The change is purely a configuration correction for the dock device’s flashing parameters.
Changed components
krux shell script (firmware flashing utility)Inspect captured patch +3 / −1
diff --git a/krux b/krux
index b982230..13dedb8 100755
--- a/krux
+++ b/krux
@@ -108,11 +108,13 @@ elif [ "$1" == "flash" -o "$1" == "boot" -o "$1" == "boot-terminal" -o "$1" == "
BAUDRATE=2000000
if [ "$device" == "maixpy_embed_fire" ]; then
BAUDRATE=400000
+ elif [ "$device" == "maixpy_m5stickv" ]||
+ [ "$device" == "maixpy_dock" ]; then
+ BAUDRATE=1500000
fi
if [ "$device" == "maixpy_m5stickv" ]; then
# https://devicehunt.com/view/type/usb/vendor/0403/device/6001
device_vendor_product_id="0403:6001"
- BAUDRATE=1500000
elif [ "$device" == "maixpy_amigo" ]||
[ "$device" == "maixpy_bit" ]||
[ "$device" == "maixpy_cube" ]; then
Why this scored 17/100
Community notes
Notes can correct, qualify, or add evidence to the AI analysis. Every note shown here has been validated by a human moderator.
The AI analysis stands alone for now. Submit a note if you can add evidence or important context.