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usb15: abort if permission denied

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Don't ignore permission denied when looking for a suitable USB device.
Otherwise users don't notice what the problem is, stcgal will just
keep waiting on the prompt.
This commit is contained in:
Grigori Goronzy 2016-05-20 02:47:42 +02:00
parent f90fe4152b
commit 26ef34991b
1 changed files with 6 additions and 2 deletions
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8
stcgal/protocols.py
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@ -21,7 +21,7 @@
# #
import serial import serial
import sys, os, time, struct, re import sys, os, time, struct, re, errno
import argparse import argparse
import collections import collections
from stcgal.models import MCUModelDatabase from stcgal.models import MCUModelDatabase
@ -1528,7 +1528,11 @@ class StcUsb15Protocol(Stc15Protocol):
self.status_packet = None self.status_packet = None
raise StcFramingException raise StcFramingException
else: raise StcFramingException else: raise StcFramingException
except (StcFramingException, usb.core.USBError): time.sleep(0.5) except StcFramingException:
time.sleep(0.5)
except usb.core.USBError as err:
if err.errno == errno.EACCES:
raise IOError(err.strerror)
self.initialize_model() self.initialize_model()
print("done") print("done")