文件操作 - check-ptp-camera

文件: /usr/lib/udev/check-ptp-camera

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#!/bin/sh
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details. 
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA  02110-1301  USA
#
#
# check if any interface of this device is a PTP camera interface (06)
INTERFACE="${1:-06/01/01}"

BASENAME=${DEVPATH##*/}
for d in /sys/${DEVPATH}/${BASENAME}:*; do
	[ -d "${d}" ] || continue
	INTERFACEID="$(cat "${d}"/bInterfaceClass)"
	INTERFACEID="${INTERFACEID}/$(cat "${d}"/bInterfaceSubClass)"
	INTERFACEID="${INTERFACEID}/$(cat "${d}"/bInterfaceProtocol)"

#echo ${d}: ${INTERFACEID}
	if [ "${INTERFACE}" = "${INTERFACEID}" ]; then
		# Found interface
		exit 0
	fi
done
 
exit 1

文件操作 - check-ptp-camera

文件: /usr/lib/udev/check-ptp-camera

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