56118b5b38
This change includes work in progress on a C++ library for both host and device MTP and PTP support. Currently the makefile builds two test programs: mtptest - a command line test program that implements a small subset of device side MTP. Requires a kernel driver that has not been checked in yet. ptptest - a host tool to test USB host support for detecting and communicating with digital cameras over PTP. Runs on Linux host. Later this will be reformulated as a native library that will be used in the media process. Change-Id: I81aab279975b600b59d99013ab97f9adf0b58da7 Signed-off-by: Mike Lockwood <lockwood@android.com>
63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "mtp_usb"
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#include "cutils/log.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include "MtpServer.h"
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#include "MtpStorage.h"
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static void enable_usb_function(const char* name, bool enable) {
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char path[PATH_MAX];
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snprintf(path, sizeof(path), "/sys/class/usb_composite/%s/enable", name);
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int fd = open(path, O_RDWR);
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if (fd < 0) {
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fprintf(stderr, "could not open %s in enable_usb_function\n", path);
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exit(1);
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}
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write(fd, enable ? "1" : "0", 2);
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close(fd);
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}
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int main() {
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// first disable UMS and enable MTP USB functions
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enable_usb_function("usb_mass_storage", false);
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enable_usb_function("mtp", true);
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int fd = open("/dev/mtp_usb", O_RDWR);
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printf("open returned %d\n", fd);
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if (fd < 0) {
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fprintf(stderr, "could not open MTP driver\n");
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return -1;
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}
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MtpServer server(fd, "/data/data/mtp/mtp.db");
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server.addStorage("/sdcard");
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server.scanStorage();
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server.run();
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close(fd);
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return 0;
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}
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