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+# ========================================================================== #
+# #
+# KVMD - The main Pi-KVM daemon. #
+# #
+# Copyright (C) 2018 Maxim Devaev <[email protected]> #
+# #
+# This program is free software: you can redistribute it and/or modify #
+# it under the terms of the GNU General Public License as published by #
+# the Free Software Foundation, either version 3 of the License, or #
+# (at your option) any later version. #
+# #
+# This program is distributed in the hope that it will be useful, #
+# but WITHOUT ANY WARRANTY; without even the implied warranty of #
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
+# GNU General Public License for more details. #
+# #
+# You should have received a copy of the GNU General Public License #
+# along with this program. If not, see <https://www.gnu.org/licenses/>. #
+# #
+# ========================================================================== #
+
+
+import os
+
+
+# =====
+# XXX: Don't use these variables for any purpose other than testing.
+# It can be removed at any time.
+
+GPIO_DEVICE_PATH = str(os.getenv("KVMD_GPIO_DEVICE_PATH", "/dev/gpiochip0")).strip()
+
+SYSFS_PREFIX = str(os.getenv("KVMD_SYSFS_PREFIX", "")).strip()
+PROCFS_PREFIX = str(os.getenv("KVMD_PROCFS_PREFIX", "")).strip()