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Don't spam the usb.

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The connected logic was flawed.  After 10 s it would continuously
check if the device is still connected.  Now, we reset the timer
after every check.
This commit is contained in:
Jochen Hoenicke 2015-04-29 19:31:48 +02:00
parent 2f2ffd5239
commit 6cedf149d2
1 changed files with 7 additions and 3 deletions
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10
trezorlib/transport_hid.py
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@ -117,10 +117,14 @@ class HidTransport(Transport):
while len(self.buffer) < length:
data = self.hid.read(64)
if not len(data):
if time.time() - start > 10 and not self.is_connected():
# Over 10 of no response, let's check if
if time.time() - start > 10:
# Over 10 s of no response, let's check if
# device is still alive
raise ConnectionError("Connection failed")
if not self.is_connected():
raise ConnectionError("Connection failed")
else:
# Restart timer
start = time.time()
time.sleep(0.001)
continue