#!/bin/sh

# modified for non-bash shells. Sasha Alexandr 2009-Dec 23

# 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