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28 lines
603 B
Python
28 lines
603 B
Python
"""Cryptographic hardware device management."""
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import logging
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from . import trezor
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from . import keepkey
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from . import ledger
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from . import interface
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log = logging.getLogger(__name__)
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DEVICE_TYPES = [
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trezor.Trezor,
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keepkey.KeepKey,
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ledger.LedgerNanoS,
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]
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def detect():
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"""Detect the first available device and return it to the user."""
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for device_type in DEVICE_TYPES:
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try:
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with device_type() as d:
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return d
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except interface.NotFoundError as e:
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log.debug('device not found: %s', e)
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raise IOError('No device found!')
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