#!/bin/sh -e | |
# | |
# Copyright 2017 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. | |
# | |
# This will | |
# 1. Read HDCP Key from VPD. | |
# 2. Pass key to DP or HDMI driver. | |
if [ $# -ne 1 ]; then | |
echo "invalid device path" | |
exit | |
fi | |
VPD_HDCP_KEY="hdcp_key_v1_4" | |
HDCP_SYS_PATH="/sys/$1/hdcp_key" | |
vpd_get_value "${VPD_HDCP_KEY}" > "${HDCP_SYS_PATH}" |