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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")
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