blob: 2b872bbfe43d888fbd49ab14698b5a5f748b6c9f [file] [log] [blame]
# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import glob, re
from autotest_lib.client.bin import test, utils
from autotest_lib.client.common_lib import error
from autotest_lib.client.cros import cros_ui, cros_ui_test
class hardware_USB20(cros_ui_test.UITest):
version = 1
def run_once(self):
# 'lsusb' gives a bunch of USB device lines like:
# Bus 001 Device 009: ID 0930:6544 Toshiba Corp. Kingston DataTravel...
# The bus and device fields are at [1] and [3].
cmd = 'lsusb'
original_lsusb = utils.system_output(cmd).split('\n')
dialog = cros_ui.Dialog(question="Please plug a USB 2.0 device in.",
result = dialog.get_result()
plugin_lsusb = utils.system_output(cmd).split('\n')
new_lsusb = [e for e in plugin_lsusb if e not in original_lsusb]
if not new_lsusb:
raise error.TestFail("No USB device detected after plugging in");
# For each new device, find its bus and device fields and verify 2.0.
for usb_dev in new_lsusb:
usb_version = "unknown"
bus = usb_dev.split(' ')[1]
dev = usb_dev.split(' ')[3]
# 'lsusb -s BUS:DEV -v' gives verbose output including at least one
# bcdUSB line which describes its USB version. Confirm 2.0.
verbose_cmd = "lsusb -s %s:%s -v" % (bus, dev)
linesout = utils.system_output(verbose_cmd).split('\n')
for line in linesout:
version_pattern =' *bcdUSB *([^ ]+)', line)
if version_pattern:
usb_version =
if usb_version != "2.00":
raise error.TestFail("usb_dev %s gives version %s" %
(usb_dev, usb_version))
dialog.init(question="Detected:<br>%s.<hr>Please unplug the device." %
", <br>".join(new_lsusb), choices=["OK"])
result = dialog.get_result()
unplug_lsusb = utils.system_output(cmd).split('\n')
if original_lsusb != unplug_lsusb:
raise error.TestFail("The USB devices are not the same as before "
"after unplugging")