flipperzero-firmware/scripts/flipper/utils/cdc.py

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import serial.tools.list_ports as list_ports
# Returns a valid port or None, if it cannot be found
def resolve_port(logger, portname: str = "auto"):
if portname != "auto":
return portname
# Try guessing
flippers = list(list_ports.grep("flip"))
if len(flippers) == 1:
flipper = flippers[0]
logger.info(f"Using {flipper.serial_number} on {flipper.device}")
return flipper.device
elif len(flippers) == 0:
logger.error("Failed to find connected Flipper")
elif len(flippers) > 1:
logger.error("More than one Flipper is attached")
logger.error("Failed to guess which port to use. Specify --port")