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transport: inject info about udev rules into io/os exception

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This commit is contained in:
Pavol Rusnak 2018-03-30 14:16:38 +02:00 committed by matejcik
parent 7c08800cb9
commit 12c58ce3cc
2 changed files with 13 additions and 2 deletions
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8
trezorlib/transport/hid.py
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@ -19,6 +19,7 @@
import time import time
import hid import hid
import os import os
import sys
from ..protocol_v1 import ProtocolV1 from ..protocol_v1 import ProtocolV1
from ..protocol_v2 import ProtocolV2 from ..protocol_v2 import ProtocolV2
@ -39,7 +40,12 @@ class HidHandle:
def open(self): def open(self):
if self.count == 0: if self.count == 0:
self.handle = hid.device() self.handle = hid.device()
self.handle.open_path(self.path) try:
self.handle.open_path(self.path)
except (IOError, OSError) as e:
if sys.platform.startswith('linux'):
e.args = e.args + ('Do you have udev rules installed? https://github.com/trezor/trezor-common/blob/master/udev/51-trezor.rules', )
raise e
self.handle.set_nonblocking(True) self.handle.set_nonblocking(True)
self.count += 1 self.count += 1

7
trezorlib/transport/webusb.py
View File

@ -20,6 +20,7 @@ import time
import os import os
import atexit import atexit
import usb1 import usb1
import sys
from ..protocol_v1 import ProtocolV1 from ..protocol_v1 import ProtocolV1
from ..protocol_v2 import ProtocolV2 from ..protocol_v2 import ProtocolV2
@ -46,7 +47,11 @@ class WebUsbHandle:
if self.count == 0: if self.count == 0:
self.handle = self.device.open() self.handle = self.device.open()
if self.handle is None: if self.handle is None:
raise Exception('Cannot open device') if sys.platform.startswith('linux'):
args = ('Do you have udev rules installed? https://github.com/trezor/trezor-common/blob/master/udev/51-trezor.rules', )
else:
args = ()
raise IOError('Cannot open device', *args)
self.handle.claimInterface(interface) self.handle.claimInterface(interface)
self.count += 1 self.count += 1