我正在尝试让一个简单的USB设备在macOS上工作。该设备可通过使用usbser.sys驱动程序在Windows上运行：提供了一个简单的.inf文件，并且似乎可以解决问题（使用.cat文件）。我对usbser.sys的理解是，它将拥有USB通信设备类（CDC）设备的所有权。
在解构macOS上的USB设备之前，我已经为许多不同的设备编写了用户空间驱动程序。我的策略一直是相同的：使用USB Prober.app（或更近期的PyUSB）获取USB设备及其所有配置参数，接口，管道和端点的列表。所获得的信息足以完全掌握设备：我可以查看设备是否可以序列化（即通过某些驱动程序获取/dev/cu.serialxxx），也可以看到USB配置和USB接口。当然，在可能的情况下（即，当USB内核扩展获得设备的所有权并对其进行序列化时），我使用POSIX库作为序列化版本，因为它更简单。但是，在需要时，我可以使用IOKit直接访问设备，并在经过反复试验后找到正确的通信管道/端点。
但是我完全不知所措：虽然连接该设备（这是Cobolt Lasers的激光），但它完全不显示，即使是USB原始设备也没有显示，尽管它在Windows上运行得很好（每次） 10机。正如我在Windows上验证的那样，它是CDC设备。它至少应由AppleUSBCDC.kext接收，但不能：它不会显示在系统报告，USB Prober或PyUSB列表中，因此，它根本不会显示在/ dev /中。我很困惑，因为尽管我不是USB专家，但我认为我知道驱动程序不需要USB设备显示在系统报告中的至少，这足以我可以使用IOKit编写自己的用户空间驱动程序（过去我已经在其他设备上做到过）。
我的问题：
usbser.sys等效的内容？编辑1：
在评论之后，我使用了sudo dmesg并在枚举过程中看到了错误（请参见下文）。我目前的工作假设是USB设备描述符不是很有效，尽管在macOS上，但在Windows上这不是问题。
编辑2： 尽管我无法在描述符中找到确切的错误，但Ot似乎是无效的USB设备描述符。我发布了另一个有关USB设备描述符验证器的问题。
我在此处粘贴通过将设备连接到Windows机器获得的USB信息，对我来说，这清楚地表明AppleUSBCDC.kext应该真正使用该设备并对其进行序列化，因为CDC设备（总是？）可序列化：
=========================== USB Port8 ===========================
Connection Status : 0x01 (Device is connected)
Port Chain : 3-8
======================== USB Device ========================
+++++++++++++++++ Device Information ++++++++++++++++++
Friendly Name : Cobolt Laser (COM7)
Device Description : Cobolt Laser
Device Path : \\?\usb#vid_25dc&pid_0006#000013245678#{a5dcbf10-6530-11d2-901f-00c04fb951ed}
Device ID : USB\VID_25DC&PID_0006\000013245678
Hardware IDs : USB\VID_25DC&PID_0006&REV_0100 USB\VID_25DC&PID_0006
Driver KeyName : {4d36e978-e325-11ce-bfc1-08002be10318}\0006 (GUID_DEVCLASS_PORTS)
Driver : system32\DRIVERS\usbser.sys (Version: 6.1.7601.18247 Date: 2013-08-28)
Driver Inf : C:\Windows\inf\oem107.inf
Legacy BusType : PNPBus
Class : Ports
Class GUID : {4d36e978-e325-11ce-bfc1-08002be10318} (GUID_DEVCLASS_PORTS)
Interface GUID : {a5dcbf10-6530-11d2-901f-00c04fb951ed} (GUID_DEVINTERFACE_USB_DEVICE)
Service : usbser
Enumerator : USB
Location Info : Port_#0008.Hub_#0001
Location IDs : PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(8)
Container ID : {1ddbadd3-ec62-5d3a-a00a-64685c39b2e8}
Manufacturer Info : Cobolt AB
Capabilities : 0x94 (Removable, UniqueID, SurpriseRemovalOK)
Status : 0x0180600A (DN_DRIVER_LOADED, DN_STARTED, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)
Problem Code : 0
Power State : D0 (supported: D0, D3, wake from D0)
COM-Port : COM7 (\Device\USBSER000)
+++++++++++++++++ Registry USB Flags +++++++++++++++++
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\UsbFlags\25DC00060100
osvc : REG_BINARY 00 00
SkipContainerIdQuery : REG_BINARY 01 00 00 00
---------------- Connection Information ---------------
Connection Index : 0x08 (8)
Connection Status : 0x01 (DeviceConnected)
Current Config Value : 0x01
Device Address : 0x0B (11)
Is Hub : 0x00 (no)
Number Of Open Pipes : 0x03 (3)
Device Bus Speed : 0x01 (Full-Speed)
Pipe0ScheduleOffset : 0x00 (0)
Pipe1ScheduleOffset : 0x00 (0)
Pipe2ScheduleOffset : 0x00 (0)
Data (HexDump) : 08 00 00 00 12 01 00 02 02 00 00 08 DC 25 06 00 .............%..
00 01 01 02 03 01 01 01 00 0B 00 03 00 00 00 01 ................
00 00 00 07 05 82 03 40 00 08 00 00 00 00 07 05 .......@........
01 02 40 00 01 00 00 00 00 07 05 81 02 40 00 01 ..@..........@..
00 00 00 00 ....
---------------------- Device Descriptor ----------------------
bLength : 0x12 (18 bytes)
bDescriptorType : 0x01 (Device Descriptor)
bcdUSB : 0x200 (USB Version 2.00)
bDeviceClass : 0x02 (Communications and CDC Control)
bDeviceSubClass : 0x00
bDeviceProtocol : 0x00 (No class specific protocol required)
bMaxPacketSize0 : 0x08 (8 bytes)
idVendor : 0x25DC
idProduct : 0x0006
bcdDevice : 0x0100
iManufacturer : 0x01 (String Descriptor 1)
Language 0x0409 : "Cobolt AB"
iProduct : 0x02 (String Descriptor 2)
Language 0x0409 : "Cobolt Laser Driver MLD"
iSerialNumber : 0x03 (String Descriptor 3)
Language 0x0409 : "000013245678"
bNumConfigurations : 0x01 (1 Configuration)
Data (HexDump) : 12 01 00 02 02 00 00 08 DC 25 06 00 00 01 01 02 .........%......
03 01 ..
------------------ Configuration Descriptor -------------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x02 (Configuration Descriptor)
wTotalLength : 0x0043 (67 bytes)
bNumInterfaces : 0x02 (2 Interfaces)
bConfigurationValue : 0x01 (Configuration 1)
iConfiguration : 0x00 (No String Descriptor)
bmAttributes : 0x80
D7: Reserved, set 1 : 0x01
D6: Self Powered : 0x00 (no)
D5: Remote Wakeup : 0x00 (no)
D4..0: Reserved, set 0 : 0x00
MaxPower : 0x32 (100 mA)
Data (HexDump) : 09 02 43 00 02 01 00 80 32 09 04 00 00 01 02 02 ..C.....2.......
01 00 05 24 00 10 01 05 24 01 01 01 04 24 02 06 ...$....$....$..
05 24 06 00 01 07 05 82 03 40 00 08 09 04 01 00 .$.......@......
02 0A 00 00 00 07 05 01 02 40 00 01 07 05 81 02 .........@......
40 00 01 @..
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x00
bAlternateSetting : 0x00
bNumEndpoints : 0x01 (1 Endpoint)
bInterfaceClass : 0x02 (Communications and CDC Control)
bInterfaceSubClass : 0x02 (Abstract Control Model)
bInterfaceProtocol : 0x01 (AT Commands defined by ITU-T V.250 etc)
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 00 00 01 02 02 01 00 .........
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x00 (Header Functional Descriptor)
bcdCDC : 0x110 (CDC Version 1.10)
Data (HexDump) : 05 24 00 10 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x01 (Call Management Functional Descriptor)
bmCapabilities : 0x01
D7..2: : 0x00 (Reserved)
D1 : : 0x00 (sends/receives call management information only over the Communication Class interface)
D0 : : 0x01 (handles call management itself)
bDataInterface : 0x01
Data (HexDump) : 05 24 01 01 01 .$...
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x04 (4 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x02 (Abstract Control Management Functional Descriptor)
bmCapabilities : 0x06
D7..4: : 0x00 (Reserved)
D3 : : 0x00 (not supports the notification Network_Connection)
D2 : : 0x01 (supports the request Send_Break)
D1 : : 0x01 (supports the request combination of Set_Line_Coding, Set_Control_Line_State, Get_Line_Coding, and the notification Serial_State)
D0 : : 0x00 (not supports the request combination of Set_Comm_Feature, Clear_Comm_Feature, and Get_Comm_Feature)
Data (HexDump) : 04 24 02 06 .$..
-------------- CDC Interface Descriptor ---------------
bFunctionLength : 0x05 (5 bytes)
bDescriptorType : 0x24 (Interface)
bDescriptorSubType : 0x06 (Union Functional Descriptor)
bControlInterface : 0x00
bSubordinateInterface[0] : 0x01
Data (HexDump) : 05 24 06 00 01 .$...
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x82 (Direction=IN EndpointID=2)
bmAttributes : 0x03 (TransferType=Interrupt)
wMaxPacketSize : 0x0040 (64 bytes)
bInterval : 0x08 (8 ms)
Data (HexDump) : 07 05 82 03 40 00 08 ....@..
---------------- Interface Descriptor -----------------
bLength : 0x09 (9 bytes)
bDescriptorType : 0x04 (Interface Descriptor)
bInterfaceNumber : 0x01
bAlternateSetting : 0x00
bNumEndpoints : 0x02 (2 Endpoints)
bInterfaceClass : 0x0A (CDC-Data)
bInterfaceSubClass : 0x00
bInterfaceProtocol : 0x00
iInterface : 0x00 (No String Descriptor)
Data (HexDump) : 09 04 01 00 02 0A 00 00 00 .........
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x01 (Direction=OUT EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0040 (64 bytes)
bInterval : 0x01 (ignored)
Data (HexDump) : 07 05 01 02 40 00 01 ....@..
----------------- Endpoint Descriptor -----------------
bLength : 0x07 (7 bytes)
bDescriptorType : 0x05 (Endpoint Descriptor)
bEndpointAddress : 0x81 (Direction=IN EndpointID=1)
bmAttributes : 0x02 (TransferType=Bulk)
wMaxPacketSize : 0x0040 (64 bytes)
bInterval : 0x01 (ignored)
Data (HexDump) : 07 05 81 02 40 00 01 ....@..
----------------- Device Qualifier Descriptor -----------------
Error : ERROR_GEN_FAILURE
-------------------- String Descriptors -------------------
------ String Descriptor 0 ------
bLength : 0x04 (4 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language ID[0] : 0x0409 (English - United States)
Data (HexDump) : 04 03 09 04 ....
------ String Descriptor 1 ------
bLength : 0x14 (20 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "Cobolt AB"
Data (HexDump) : 14 03 43 00 6F 00 62 00 6F 00 6C 00 74 00 20 00 ..C.o.b.o.l.t. .
41 00 42 00 A.B.
------ String Descriptor 2 ------
bLength : 0x30 (48 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "Cobolt Laser Driver MLD"
Data (HexDump) : 30 03 43 00 6F 00 62 00 6F 00 6C 00 74 00 20 00 0.C.o.b.o.l.t. .
4C 00 61 00 73 00 65 00 72 00 20 00 44 00 72 00 L.a.s.e.r. .D.r.
69 00 76 00 65 00 72 00 20 00 4D 00 4C 00 44 00 i.v.e.r. .M.L.D.
------ String Descriptor 3 ------
bLength : 0x1A (26 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "000013245678"
Data (HexDump) : 1A 03 30 00 30 00 30 00 30 00 31 00 33 00 32 00 ..0.0.0.0.1.3.2.
34 00 35 00 36 00 37 00 38 00 4.5.6.7.8.
----- String Descriptor 0xEE -----
bLength : 0x02 (2 bytes)
bDescriptorType : 0x03 (String Descriptor)
Language 0x0409 : "" *!*CAUTION zero length
Data (HexDump) : 02 03 ..