| # Copyright 2020 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 itertools |
| |
| from autotest_lib.client.common_lib import utils |
| from autotest_lib.client.common_lib.cros import cros_config |
| |
| |
| def detect_camera(iface): |
| """ |
| Checks whether the device has a built-in camera of specified interface by |
| CrOS config. |
| |
| @param iface: string, either 'usb' or 'mipi', indicating the interface of |
| camera module. |
| @returns boolean indicating whether there's a matching camera. |
| """ |
| for i in itertools.count(0): |
| queried = cros_config.call_cros_config_get_output( |
| '/camera/devices/{} interface'.format(i), utils.run) |
| if queried == '': |
| break |
| if queried == iface: |
| return True |
| return False |