我有一个与这里发布的问题类似的问题以太网转 USB 适配器未初始化为 ttyUSB 或 ttyACM 设备我试图连接一个 geomagic touch 设备，该设备通过以太网 USB 适配器连接到 Linux 机器（Ubuntu 14.04.2 Trusty）。根据供应商提供的说明（Linux_helper_notes.pdfhttps://3dsystems.teamplatform.com/pages/102863?t=fptvcy2zbkcc），该设备应被识别为 ttyACM 设备，但它被识别为网络设备。我已按照说明将其设置为链接本地 IPv4。
“lsusb -v”的输出如下：
Bus 001 Device 004: ID 0424:7500 Standard Microsystems Corp. LAN7500 Ethernet 10/100/1000 Adapter
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 255
bMaxPacketSize0 64
idVendor 0x0424 Standard Microsystems Corp.
idProduct 0x7500 LAN7500 Ethernet 10/100/1000 Adapter
bcdDevice 1.00
iManufacturer 1 WS
iProduct 2 USB Gigabit LAN
iSerial 3 0000000ce6
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 4 Cfg
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 0
bInterfaceProtocol 255
iInterface 5 i/f
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
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 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 0
bDeviceProtocol 255
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0001
Self Powered
“dmesg | tail”的输出是
[100046.831766] usb 1-5: Manufacturer: WS
[100046.831769] usb 1-5: SerialNumber: 0000000ce6
[100046.834946] smsc75xx v1.0.0
[100046.885691] smsc75xx 1-5:1.0 eth0: register 'smsc75xx' at usb-0000:00:14.0-5, smsc75xx USB 2.0 Gigabit Ethernet, **MAC_ADDRESS**
[100046.899593] smsc75xx 1-5:1.0 eth3: renamed from eth0
[100046.911256] systemd-udevd[10963]: renamed network interface eth0 to eth3
[100046.961743] IPv6: ADDRCONF(NETDEV_UP): eth3: link is not ready
[100049.063134] IPv6: ADDRCONF(NETDEV_CHANGE): eth3: link becomes ready
[100049.063956] smsc75xx 1-5:1.0 eth3: link up, 100Mbps, half-duplex, lpa 0x0081
[100049.068943] smsc75xx 1-5:1.0 eth3: link up, 100Mbps, half-duplex, lpa 0x0081