def is_bridge_available(self) -> bool:
# Testing whether the Bridge is available can take several seconds
# (when it is not), as it is slow to timeout, hence we cache it.
if self._is_bridge_available is None:
try:
call_bridge("enumerate")
except Exception:
self._is_bridge_available = False
# never again try with Bridge due to slow timeout
BridgeTransport.ENABLED = False
else:
self._is_bridge_available = True
return self._is_bridge_available
def enumerate(self):
# If there is a bridge, prefer that.
# On Windows, the bridge runs as Admin (and Electrum usually does not),
# so the bridge has better chances of finding devices. see #5420
# This also avoids duplicate entries.
try:
call_bridge("enumerate")
except Exception:
devices = trezorlib.transport.enumerate_devices()
else:
devices = BridgeTransport.enumerate()
return [Device(path=d.get_path(),
interface_number=-1,
id_=d.get_path(),
product_key=TREZOR_PRODUCT_KEY,
usage_page=0,
transport_ui_string=d.get_path())
for d in devices]