声明界面时出现错误的usb4java库 [英] Usb4java library, error while claiming an interface

问题描述

这里我使用库usb4java来访问我的usb设备。

问题是当我尝试声明我的usb设备的接口时出错。错误在这一行：

int msg = LibUsb.claimInterface（deviceHandler，1）;

错误：USB错误3：无法声明界面：访问被拒绝（权限不足）

是否有人知道我为什么会出现此错误或如何解决此问题？

解决方案

我遇到了同样的问题，我的环境是Mac OS X 10.9

<经过长时间的谷歌搜索，我终于找到了这个只是获取连接到系统的USB设备的名称？帮助了我，现在我的代码就像魅力一样。

解决方案是< a href =http://www.proxmark.org/forum/viewtopic.php?id=986 =nofollow noreferrer>这里，原因mac将自动声明设备，我们可以创建一个虚拟设备它的驱动程序。

这是步骤如何做。

1. 创建Info.plist i n /System/Library/Extensions/Proxmark3.kext/Contents ，你应该创建父文件夹，如果缺少，文件内容shuold是这样的：

 <？xml version =1.0encoding = UTF-8\" >？; <！DOCTYPE plist PUBLIC -  // Apple Computer // DTD PLIST 1.0 // ENhttp://www.apple.com/DTDs/PropertyList-1.0.dtd\"> <！ - 这是一个绑定到Proxmark的虚拟驱动程序。它 - > <！ - 不包含实际代码;它唯一的目的是 - > <！ - 专门阻止Apple的USBHID驱动程序 - > <！ - 打开设备。 - > < plist version =1.0> <字典> <密钥GT; CFBundleDevelopmentRegion< /密钥GT; <串GT;英语< /串GT; <密钥GT; CFBundleIconFile< /密钥GT; <串GT;< /串GT; <密钥GT; CFBundleIdentifier< /密钥GT; <串GT; com.proxmark.driver.dummy< /串GT; <密钥GT; CFBundleInfoDictionaryVersion< /密钥GT; <串GT; 6.0< /串GT; <密钥GT; CFBundlePackageType< /密钥GT; <串GT; KEXT< /串GT; <密钥GT; CFBundleSignature< /密钥GT; <串GT; ????< /串GT; <密钥GT; CFBundleVersion< /密钥GT; <串GT; 1.0.0d1< /串GT; <密钥GT; IOKitPersonalities< /密钥GT; <字典> <！ -  Proxmark3 USB接口 - > <密钥GT; Proxmark3< /密钥GT; <字典> <密钥GT; CFBundleIdentifier< /密钥GT; <串GT; com.apple.kpi.iokit< /串GT; <密钥GT; IOClass< /密钥GT; <串GT; IOService的< /串GT; <密钥GT;&的IOProviderClass LT; /密钥GT; <串GT; IOUSBInterface< /串GT; <密钥GT;&的bConfiguration Value LT; /密钥GT; <整数大于1< /整数> <密钥GT; bInterfaceNumber< /密钥GT; <整数大于0< /整数> <密钥GT; idProduct< /密钥GT; <整数> {您-USB-硬件产品-ID}< /整数> <密钥GT; idVendor< /密钥GT; <整数> {您-USB-硬件供应商的ID}< /整数> < /字典> < /字典> <密钥GT; OSBundleLibraries< /密钥GT; <字典> <密钥GT; com.apple.iokit.IOUSBFamily< /密钥GT; <串GT; 1.8< /串GT; < /字典> < / dict>< / plist>  

注意：{your-usb-hardware-product-id}和{your-usb-hardware-vendor-id}必须是您自己的硬件ID，可以从关于此mac - 系统报告 - 硬件 - USB 。

2. 输入 / System / Library / Extensions ，并以 ROOT

<运行

sudo chown -R root：wheel Proxmark3.kext

sudo chmod -R 755 Proxmark3.kext

sudo kextcache -system-caches

3. 重新启动系统并查看结果。

Here I use the library usb4java to access to my usb device.

The problem is I have an error while I try to claim an interface of my usb device. The error is on this line:

int msg = LibUsb.claimInterface(deviceHandler, 1);

error: USB error 3: Unable to claim interface: Access denied (insufficient permissions)

Is there someone who know why I have this error or how fix it ?

解决方案

I have the same issue you got, and my env is Mac OS X 10.9

After a long search with google, I finally found this just get the names of USB devices attached to a system? which helped me out, now my code works like charm。

solution is here，Cause mac will automatically claim devices, and we could create a dummy driver for it.

Here is step how to do it.

1. create Info.plist in /System/Library/Extensions/Proxmark3.kext/Contents , And you should create parent folder if is missing, file content shuold be like this:

    <?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
    <!-- This is a dummy driver which binds to Proxmark. It -->
    <!-- contains no actual code; its only purpose is to     -->
    <!-- prevent Apple's USBHID driver from exclusively      -->
    <!-- opening the device.                                 -->
    <plist version="1.0">
    <dict>
        <key>CFBundleDevelopmentRegion</key>
        <string>English</string>
        <key>CFBundleIconFile</key>
        <string></string>
        <key>CFBundleIdentifier</key>
        <string>com.proxmark.driver.dummy</string>
        <key>CFBundleInfoDictionaryVersion</key>
        <string>6.0</string>
        <key>CFBundlePackageType</key>
        <string>KEXT</string>
        <key>CFBundleSignature</key>
        <string>????</string>
        <key>CFBundleVersion</key>
        <string>1.0.0d1</string>
        <key>IOKitPersonalities</key>
        <dict>
            <!-- The Proxmark3 USB interface -->
            <key>Proxmark3</key>
            <dict>
                <key>CFBundleIdentifier</key>
                <string>com.apple.kpi.iokit</string>
                <key>IOClass</key>
                <string>IOService</string>
                <key>IOProviderClass</key>
                <string>IOUSBInterface</string>
                <key>bConfigurationValue</key>
                <integer>1</integer>
                <key>bInterfaceNumber</key>
                <integer>0</integer>
                <key>idProduct</key>
                <integer>{your-usb-hardware-product-id}</integer>
                <key>idVendor</key>
                <integer>{your-usb-hardware-vendor-id}</integer>
            </dict>
        </dict>
        <key>OSBundleLibraries</key>
        <dict>
            <key>com.apple.iokit.IOUSBFamily</key>
            <string>1.8</string>
        </dict>
    </dict>
</plist>

note: {your-usb-hardware-product-id} and {your-usb-hardware-vendor-id} have to be your own hardware ids, which can be obtained from About this mac - System Report - Hardware - USB .

2. Enter /System/Library/Extensions, and run as ROOT

sudo chown -R root:wheel Proxmark3.kext

sudo chmod -R 755 Proxmark3.kext

sudo kextcache -system-caches

3. reboot your system and see the result.

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