，为什么没有/dev条目？
，为什么没有/dev条目？
提问于 2014-01-21 09:40:23
我最初是在SU上问这个问题的，但是它对Ubuntu是如此的特殊，所以我把它移到了这里。
我在我的Ubuntu系统上安装了433收发器 (3.8.0-35)。它是一种USB到串行的设备，不知怎么地被认可：
dmesg输出：
[ 324.051498] usb 3-1: new full-speed USB device number 2 using xhci_hcd
[ 324.088070] usb 3-1: New USB device found, idVendor=10c4, idProduct=8668
[ 324.088081] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 324.088087] usb 3-1: Product: NETUSB1100 NEWMSG
[ 324.088093] usb 3-1: Manufacturer: HZWB
[ 324.102259] hid-generic 0003:10C4:8668.0002: hiddev0,hidraw1: USB HID v1.01 Device [HZWB NETUSB1100 NEWMSG ] on usb-0000:0e:00.0-1/input0lsusb输出：
Bus 003 Device 002: ID 10c4:8668 Cygnal Integrated Products, Inc.我想访问它(例如通过rfxcmd )，但是我无法获得相关的/dev路径。当我插入/dev的内容时，它的内容不会改变，所以肯定缺少了一些东西。
要创建/dev/...设备路径(然后可以在脚本中使用)，还必须执行哪些其他步骤？
编辑后，莱肯斯廷's回答:输出的tree /sys/bus/usb/drivers/跟随modprobe cp210x (与非相关部分删除)。请注意，在重新启动后，上面的3-1变成了3-2。我在测试中考虑到了这一点。
/sys/bus/usb/drivers/
├── cp210x
│ ├── bind
│ ├── module -> ../../../../module/usbserial
│ ├── uevent
│ └── unbind
├── hub
│ ├── 1-0:1.0 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-0:1.0
│ ├── 1-1:1.0 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1:1.0
│ ├── 2-0:1.0 -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-0:1.0
│ ├── 2-1:1.0 -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1:1.0
│ ├── 3-0:1.0 -> ../../../../devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb3/3-0:1.0
│ ├── 4-0:1.0 -> ../../../../devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb4/4-0:1.0
│ ├── bind
│ ├── module -> ../../../../module/usbcore
│ ├── new_id
│ ├── remove_id
│ ├── uevent
│ └── unbind
├── usb
│ ├── 1-1 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1
│ ├── 1-1.2 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2
│ ├── 1-1.3 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.3
│ ├── 1-1.4 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.4
│ ├── 1-1.6 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.6
│ ├── 2-1 -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2/2-1
│ ├── 3-2 -> ../../../../devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb3/3-2
│ ├── bind
│ ├── uevent
│ ├── unbind
│ ├── usb1 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1
│ ├── usb2 -> ../../../../devices/pci0000:00/0000:00:1d.0/usb2
│ ├── usb3 -> ../../../../devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb3
│ └── usb4 -> ../../../../devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb4
├── usbhid
│ ├── 1-1.2:1.0 -> ../../../../devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0
│ ├── 3-2:1.0 -> ../../../../devices/pci0000:00/0000:00:1c.6/0000:0e:00.0/usb3/3-2/3-2:1.0
│ ├── bind
│ ├── module -> ../../../../module/usbhid
│ ├── new_id
│ ├── remove_id
│ ├── uevent
│ └── unbind
├── usbserial
│ ├── bind
│ ├── module -> ../../../../module/usbserial
│ ├── uevent
│ └── unbind
├── usbserial_generic
│ ├── bind
│ ├── module -> ../../../../module/usbserial
│ ├── uevent
│ └── unbind编辑:在dmesg重新编译和重新引导之后添加了cp210x.ko (使用新的cp210x.ko)
[ 1.352918] usb 3-2: new full-speed USB device number 2 using xhci_hcd
[ 1.389854] usb 3-2: New USB device found, idVendor=10c4, idProduct=8668
[ 1.389865] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1.389871] usb 3-2: Product: NETUSB1100 NEWMSG
[ 1.389877] usb 3-2: Manufacturer: HZWB
[ 1.399869] usbcore: registered new interface driver usbhid
[ 1.399872] usbhid: USB HID core driver
[ 1.406870] hid-generic 0003:10C4:8668.0001: hiddev0,hidraw0: USB HID v1.01 Device [HZWB NETUSB1100 NEWMSG ] on usb-0000:0e:00.0-2/input0在手动modprobe cp210x之后，dmesg中的额外行。
[ 1313.312593] usbcore: registered new interface driver usbserial
[ 1313.312642] usbcore: registered new interface driver usbserial_generic
[ 1313.312674] usbserial: USB Serial support registered for generic
[ 1313.329536] usbcore: registered new interface driver cp210x
[ 1313.329575] usbserial: USB Serial support registered for cp210x
(end of file)回答 1
Ask Ubuntu用户
发布于 2016-03-31 06:10:01
我使用shell脚本管理标识设备节点，并使用自定义cp210x驱动程序。还提供了适当的udev规则和脚本，以便在CP210X设备热插拔时动态执行脚本。
github.com/RishiGupta12/serial-communication-manager/tree/master/drivers/cp210x-silicon-labs
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https://askubuntu.com/questions/408627
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