diff --git a/reset_sifive_usb.sh b/reset_sifive_usb.sh
new file mode 100644
index 0000000..036999e
--- /dev/null
+++ b/reset_sifive_usb.sh
@@ -0,0 +1,60 @@
+#!/bin/bash
+
+# A script to automatically find and reset the FTDI USB-to-Serial converter
+# commonly used on SiFive development boards like the P550. This is useful
+# when a tool like OpenOCD takes exclusive control and doesn't release the
+# ttyUSB devices correctly.
+
+set -e
+
+# --- Configuration ---
+# The Vendor and Product ID for the FTDI FT4232H Quad-HS USB-UART/FIFO IC.
+# You can verify this for your board by running `lsusb`.
+VENDOR_ID="0403"
+PRODUCT_ID="6011"
+
+# --- Sanity Checks ---
+if [ "$(id -u)" -ne 0 ]; then
+  echo "This script must be run as root. Please use 'sudo'." >&2
+  exit 1
+fi
+
+if ! [ -d /sys/bus/usb/drivers/usb ]; then
+    echo "Error: USB drivers not found at /sys/bus/usb/drivers/usb." >&2
+    exit 1
+fi
+
+# --- Main Logic ---
+echo "Searching for USB device with ID ${VENDOR_ID}:${PRODUCT_ID}..."
+
+FOUND_BUS_ID=""
+for dir in /sys/bus/usb/devices/*; do
+  if [ -f "${dir}/idVendor" ] && [ -f "${dir}/idProduct" ]; then
+    if [ "$(cat "${dir}/idVendor")" == "${VENDOR_ID}" ] && [ "$(cat "${dir}/idProduct")" == "${PRODUCT_ID}" ]; then
+      FOUND_BUS_ID=$(basename "${dir}")
+      echo "Found SiFive board on USB bus ID: ${FOUND_BUS_ID}"
+      break
+    fi
+  fi
+done
+
+if [ -z "${FOUND_BUS_ID}" ]; then
+  echo "Error: Could not find a connected SiFive board (FTDI ${VENDOR_ID}:${PRODUCT_ID})." >&2
+  echo "Please ensure the board is connected." >&2
+  exit 1
+fi
+
+echo "Resetting USB device..."
+
+# Unbind the device from the kernel
+echo " - Unbinding driver from ${FOUND_BUS_ID}..."
+echo -n "${FOUND_BUS_ID}" > /sys/bus/usb/drivers/usb/unbind
+
+# Give it a moment to process
+sleep 1
+
+# Bind the device, prompting the kernel to re-attach the driver
+echo " - Binding driver to ${FOUND_BUS_ID}..."
+echo -n "${FOUND_BUS_ID}" > /sys/bus/usb/drivers/usb/bind
+
+echo "Done. The /dev/ttyUSB* devices should reappear shortly."