我在 eBay 上找到了一个乙烯基切割机，并购买了它。
然后我偶然发现了这个视频：https://www.youtube.com/watch?v=3tZXsUGEJ-E这表明可以在 Linux 上使用这种类型的设备。我已经安装了 inkcut，但不太清楚如何连接到该设备。
lsusb -v给出该设备：
Bus 003 Device 009: ID 0483:5750 STMicroelectronics
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x0483 STMicroelectronics
idProduct 0x5750
bcdDevice 2.00
iManufacturer 1
iProduct 2
iSerial 3
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 39
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 7 Printer
bInterfaceSubClass 1 Printer
bInterfaceProtocol 2 Bidirectional
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 255
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
并dmesg给出以下输出：
[ 3775.238980] usb 3-3: new full-speed USB device number 10 using xhci_hcd
[ 3775.388610] usb 3-3: New USB device found, idVendor=0483, idProduct=5750
[ 3775.388619] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 3775.388624] usb 3-3: Product: STM32 USB DEVICE
[ 3775.388628] usb 3-3: Manufacturer: XILI
[ 3775.388632] usb 3-3: SerialNumber: STM3210
[ 3775.391026] usblp 3-3:1.0: usblp2: USB Bidirectional printer dev 10 if 0 alt 0 proto 2 vid 0x0483 pid 0x5750
...当我插入设备时。 （这是完成后的清晰捕获sudo dmesg -C）
/var/log/syslog输出：
Jan 9 21:48:58 Touchy kernel: [ 4124.339691] usb 3-3: new full-speed USB device number 11 using xhci_hcd
Jan 9 21:48:58 Touchy kernel: [ 4124.488804] usb 3-3: New USB device found, idVendor=0483, idProduct=5750
Jan 9 21:48:58 Touchy kernel: [ 4124.488808] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Jan 9 21:48:58 Touchy kernel: [ 4124.488810] usb 3-3: Product: STM32 USB DEVICE
Jan 9 21:48:58 Touchy kernel: [ 4124.488812] usb 3-3: Manufacturer: XILI
Jan 9 21:48:58 Touchy kernel: [ 4124.488814] usb 3-3: SerialNumber: STM3210
Jan 9 21:48:58 Touchy kernel: [ 4124.492479] usblp 3-3:1.0: usblp2: USB Bidirectional printer dev 11 if 0 alt 0 proto 2 vid 0x0483 pid 0x5750
Jan 9 21:48:58 Touchy mtp-probe: checking bus 3, device 11: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-3"
Jan 9 21:48:58 Touchy mtp-probe: bus: 3, device: 11 was not an MTP device
Jan 9 21:48:58 Touchy upowerd[932]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-3/3-3:1.0
Jan 9 21:48:58 Touchy upowerd[932]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb3/3-3
Jan 9 21:50:27 Touchy kernel: [ 4213.279883] perf: interrupt took too long (3164 > 3126), lowering kernel.perf_event_max_sample_rate to 63000
我在网上阅读了很多不同的文章，其中一些提到udev规则等等，但无论如何，都会ls -l /dev/ttyUSB*返回ls: cannot access '/dev/ttyUSB*': No such file or directory
我缺少什么？
答案1
事实证明，问题并不是我想象的那样。
我发现打印机显示为连接在 的 USB LP 设备 (usblp2) /dev/usb/lp2。这意味着我必须选择并行端口。这不会直接出现在 inkcut 中，而是需要重新启动。