acmecape: Add check for nonzero return code from iio-capture
diff --git a/devlib/instrument/acmecape.py b/devlib/instrument/acmecape.py
index 5300343..0b10d08 100644
--- a/devlib/instrument/acmecape.py
+++ b/devlib/instrument/acmecape.py
@@ -77,17 +77,22 @@
def stop(self):
self.process.terminate()
timeout_secs = 10
+ output = ''
for _ in xrange(timeout_secs):
if self.process.poll() is not None:
break
time.sleep(1)
else:
- output = _read_nonblock(self.process.stdout)
+ output += _read_nonblock(self.process.stdout)
self.process.kill()
self.logger.error('iio-capture did not terminate gracefully')
if self.process.poll() is None:
msg = 'Could not terminate iio-capture:\n{}'
raise HostError(msg.format(output))
+ if self.process.returncode != 15: # iio-capture exits with 15 when killed
+ output += self.process.stdout.read()
+ raise HostError('iio-capture exited with an error ({}), output:\n{}'
+ .format(self.process.returncode, output))
if not os.path.isfile(self.raw_data_file):
raise HostError('Output CSV not generated.')