我想知道是否有办法在OS X上以通用方式使用USB调制解调器（华为E1550种类），如通用USB调制解调器。问题是操作系统不会将其识别为合法的CDC ACM设备（它就是这样，但它没有宣传这样做）。
在Linux上，加密狗自动被识别为USB串行设备。
有理由我不想在我的任何机器上使用中兴和华为供应商的驱动程序：这些人写的东西几乎不起作用（我上次与中兴通讯驱动程序的经历涉及垃圾邮件我的日志，占用内存，我无法为了禁用它们，它们的驱动程序不是向前兼容的，它们忽略了将它们与更新的操作系统版本同步，并且它们通常打算使用运营商英国媒体报道来分发这些驱动程序。
Apple的开发人员文档以模糊的方式写道，可以编写无代码kext以强制匹配设备上的特定驱动程序，或者阻止为匹配设备加载通用驱动程序。事实上，大多数无代码kexts上的搜索会产生诸如“如何防止我的串行加密狗被识别为调制解调器？”之类的问题，而我想要的却完全相反！
到目前为止，我尝试编写这样一个无代码kext以fiasco结尾 - kextutil告诉kext已成功加载，但它不存在，AppleCDCACM.kext（它有我想要使用的IOClass）也是如此。
JFYI，从Linux收集的lsusb信息：
Bus 004 Device 005: ID 12d1:1001 Huawei Technologies Co., Ltd. E169/E620/E800 HSDPA Modem
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x12d1 Huawei Technologies Co., Ltd.
idProduct 0x1001 E169/E620/E800 HSDPA Modem
bcdDevice 0.00
iManufacturer 2 HUAWEI Technology
iProduct 1 HUAWEI Mobile
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 85
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 3 Qualcomm Configuration
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 5
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 32
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 32
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 32
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 32
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
我要连接的接口是接口0（调制解调器）。
以下是ioreg看到它的方式：
| | | | | +-o HUAWEI Mobile@1d110000
| | | | | +-o AppleUSBHostLegacyClient
| | | | | +-o AppleUSBHostCompositeDevice
| | | | | +-o IOUSBHostInterface@0
| | | | | | {
| | | | | | "USBPortType" = 0
| | | | | | "IOCFPlugInTypes" = {"2d9786c6-9ef3-11d4-ad51-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| | | | | | "bcdDevice" = 0
| | | | | | "USBSpeed" = 3
| | | | | | "idProduct" = 4097
| | | | | | "bConfigurationValue" = 1
| | | | | | "bInterfaceSubClass" = 255
| | | | | | "locationID" = 487653376
| | | | | | "IOGeneralInterest" = "IOCommand is not serializable"
| | | | | | "IOClassNameOverride" = "IOUSBInterface"
| | | | | | "AppleUSBAlternateServiceRegistryID" = 4294969542
| | | | | | "idVendor" = 4817
| | | | | | "bInterfaceProtocol" = 255
| | | | | | "bAlternateSetting" = 0
| | | | | | "bInterfaceNumber" = 0
| | | | | | "bInterfaceClass" = 255
| | | | | | }
| | | | | |
| | | | | +-o IOUSBHostInterface@1
| | | | | | {
| | | | | | "USBPortType" = 0
| | | | | | "IOCFPlugInTypes" = {"2d9786c6-9ef3-11d4-ad51-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| | | | | | "bcdDevice" = 0
| | | | | | "USBSpeed" = 3
| | | | | | "idProduct" = 4097
| | | | | | "bConfigurationValue" = 1
| | | | | | "bInterfaceSubClass" = 255
| | | | | | "locationID" = 487653376
| | | | | | "IOGeneralInterest" = "IOCommand is not serializable"
| | | | | | "IOClassNameOverride" = "IOUSBInterface"
| | | | | | "AppleUSBAlternateServiceRegistryID" = 4294969544
| | | | | | "idVendor" = 4817
| | | | | | "bInterfaceProtocol" = 255
| | | | | | "bAlternateSetting" = 0
| | | | | | "bInterfaceNumber" = 1
| | | | | | "bInterfaceClass" = 255
| | | | | | }
| | | | | |
| | | | | +-o IOUSBHostInterface@2
| | | | | {
| | | | | "USBPortType" = 0
| | | | | "IOCFPlugInTypes" = {"2d9786c6-9ef3-11d4-ad51-000a27052861"="IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle"}
| | | | | "bcdDevice" = 0
| | | | | "USBSpeed" = 3
| | | | | "idProduct" = 4097
| | | | | "bConfigurationValue" = 1
| | | | | "bInterfaceSubClass" = 255
| | | | | "locationID" = 487653376
| | | | | "IOGeneralInterest" = "IOCommand is not serializable"
| | | | | "IOClassNameOverride" = "IOUSBInterface"
| | | | | "AppleUSBAlternateServiceRegistryID" = 4294969546
| | | | | "idVendor" = 4817
| | | | | "bInterfaceProtocol" = 255
| | | | | "bAlternateSetting" = 0
| | | | | "bInterfaceNumber" = 2
| | | | | "bInterfaceClass" = 255
| | | | | }
| | | | |
到目前为止，Info.plist看起来像这样：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>BuildMachineOSBuild</key>
<string>15C27b</string>
<key>CFBundleDevelopmentRegion</key>
<string>English</string>
<key>CFBundleIdentifier</key>
<string>name.fedevych.GenericWWAN</string>
<key>CFBundleInfoDictionaryVersion</key>
<string>6.0</string>
<key>CFBundleName</key>
<string>GenericWWAN</string>
<key>CFBundlePackageType</key>
<string>KEXT</string>
<key>CFBundleShortVersionString</key>
<string>99.0.0</string>
<key>CFBundleSignature</key>
<string>????</string>
<key>CFBundleSupportedPlatforms</key>
<array>
<string>MacOSX</string>
</array>
<key>CFBundleVersion</key>
<string>99.0.0</string>
<key>IOKitPersonalities</key>
<dict>
<key>HUAWEI_0x12d11001_Control</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.usb.cdc.acm</string>
<key>IOClass</key>
<string>AppleUSBACMControl</string>
<key>IOProviderClass</key>
<string>IOUSBHostInterface</string>
<key>idVendor</key>
<integer>4817</integer>
<key>idProduct</key>
<integer>4097</integer>
<key>bcdDevice</key>
<integer>0</integer>
<key>bInterfaceNumber</key>
<integer>0</integer>
<key>bConfigurationValue</key>
<integer>1</integer>
<key>IOMatchCategory</key>
<string>com.apple.driver.AppleUSBACMControl</string>
</dict>
<key>HUAWEI_0x12d11001_Data</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.usb.cdc.acm</string>
<key>IOClass</key>
<string>AppleUSBACMData</string>
<key>IOProviderClass</key>
<string>IOUSBHostInterface</string>
<key>idVendor</key>
<integer>4817</integer>
<key>idProduct</key>
<integer>4097</integer>
<key>bcdDevice</key>
<integer>0</integer>
<key>bInterfaceNumber</key>
<integer>0</integer>
<key>bConfigurationValue</key>
<integer>1</integer>
</dict>
</dict>
<key>OSBundleLibraries</key>
<dict/>
</dict>
</plist>
任何指针？
答案 0 :(得分：3)
所以，我无法保证您的项目成功 - 我不知道您的调制解调器是否可以使用标准的CDC驱动程序。但我希望能帮助你找到答案。这有五个部分：
I / O Kit USB匹配
Apple Q&A QA1076是该主题的最佳资源。我建议尽可能具体。所以在你的情况下，例如：
IOProviderClass: IOUSBInterface
idVendor: 0x12d1
idProduct: 0x1001
bInterfaceNumber: 0
bConfigurationValue: 1
我希望我做对了。您可以通过在插入设备时在终端中运行ioreg -c IOUSBInterface来确认。这将显示所有USB接口＆＃39;系统中的属性采用OSX的格式，您应该能够为调制解调器选择一个属性，并确保这些属性与我给出的属性相匹配。
驱动程序类和软件包ID
除了匹配条件之外，info.plist中的I / O Kit个性字典还需要指定（C ++）类，其中应创建一个实例来驱动匹配的设备，以及包的ID。包含它的kext。
现在的问题是，使用什么驱动程序。我对CDC-ACM设备了解不多，但据我所知，它们包括一个控件和一个数据接口。这个驱动程序似乎是
/System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/AppleUSBCDCACMControl.kext
/System/Library/Extensions/IOUSBFamily.kext/Contents/PlugIns/AppleUSBCDCACMData.kext
分别在OSX上。这些中的每一个似乎都假设他们可以完全控制USB接口 - 似乎大多数设备将控制和数据端点分成两个独立的接口。在你的情况下，你只有一个。从技术上讲，通过使用不同的匹配类别，多个驱动程序可以匹配服务。但我无法保证CDC-ACM数据和控制驱动程序会对此感到满意。你可以试试......
为此，您实际上需要两个具有相同匹配条件的I / O工具包个性词典，但其中一个应具有非默认IOMatchCategory，例如：相关的驱动程序包ID。
所以尝试这样的事情：
<key>IOKitPersonalities</key>
<dict>
<key>AppleUSBCDCACMControl</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleUSBCDCACMControl</string>
<key>IOClass</key>
<string>AppleUSBCDCACMControl</string>
<key>IOProviderClass</key>
<string>IOUSBInterface</string>
<key>idVendor</key>
<integer>4817</integer>
<key>idProduct</key>
<integer>4097</integer>
<key>bInterfaceNumber</key>
<integer>0</integer>
<key>bConfigurationValue</key>
<integer>1</integer>
<key>IOMatchCategory</key>
<string>com.apple.driver.AppleUSBCDCACMControl</string>
</dict>
<key>AppleUSBCDCACMData</key>
<dict>
<key>CFBundleIdentifier</key>
<string>com.apple.driver.AppleUSBCDCACMData</string>
<key>IOClass</key>
<string>AppleUSBCDCACMData</string>
<key>IOProviderClass</key>
<string>IOUSBInterface</string>
<key>IOUserClientClass</key>
<string>AppleUSBCDCACMDataUserClient</string>
<key>InputBuffers</key>
<integer>8</integer>
<key>OutputBuffers</key>
<integer>16</integer>
<key>idVendor</key>
<integer>4817</integer>
<key>idProduct</key>
<integer>4097</integer>
<key>bInterfaceNumber</key>
<integer>0</integer>
<key>bConfigurationValue</key>
<integer>1</integer>
</dict>
</dict>
无代码kext info.plist
由于你已经有了kextutil似乎喜欢的kext，你可能已经做到了这一点：无代码的kexts必须：
OSBundleLibraries属性。CFBundleExecutable属性。Kext签名
在OSX 10.10和10.11上，必须对所有密钥（包括无代码密钥）进行签名。在10.9上，如果它们位于/System/Library/Extensions，则它们可以是无符号的;如果设置了内核选项kext-dev-mode=1，则在10.10中它们可以是无符号的。您需要为Apple的Developer Id证书添加特殊的kext签名，以便签署关键字。
加载和调试
/ System / Library / Extensions中的Kexts（可写入10.10）或/ Library / Extensions（10.9+）将在引导或设备热插拔时自动匹配。也可以使用kextutil从这些位置外部手动加载它们。
加载的kext二进制文件列在kextstat的输出中。无代码的kexts没有二进制文件，因此不会出现。然而，包含驱动程序代码的包将在I / O Kit Personality的CFBundleIdentifier中指定，如果它处于活动状态，则会显示该包。
要查看特定设备的情况，请使用ioreg命令行工具或GUI工具IORegistryExplorer（来自Apple的硬件I / O工具包）或IOJones（开源）。 / p>
最后的想法
鉴于CDC-ACM控制/数据拆分，您可能无法使用无代码kext。您可能需要更深入地了解Apple的驱动程序如何工作，并可能在您自己的kext中覆盖他们的一些行为，以便他们找到正确的终点。祝你好运！