/ dev /ttyUSB0 0文件在使用设备时从dev目录中消失
/ dev /ttyUSB0 0文件在使用设备时从dev目录中消失
提问于 2022-05-30 21:28:27
我正试图通过USB将我的IC7300HAM收音机连接到我的Ubuntu22.04笔记本电脑。我已经让它正常运行一两次，提供钻机控制和音频。问题是当USB电缆插入几秒钟后，/dev/ttyUSB0文件就会从dev目录中消失。当USB电缆被移除和插回时，它会出现，然后消失。这台收音机在Windows机器上工作得很好，所以我不认为这是Ham收音机的问题。
下面是从USB插入到设备断开为止的dmesg。
dmesg -w
1587.018767] usb 4-2: new full-speed USB device number 5 using uhci_hcd
[ 1587.195832] usb 4-2: New USB device found, idVendor=0451, idProduct=2046, bcdDevice= 1.25
[ 1587.195845] usb 4-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 1587.201094] hub 4-2:1.0: USB hub found
[ 1587.202999] hub 4-2:1.0: 4 ports detected
[ 1587.502767] usb 4-2.1: new full-speed USB device number 6 using uhci_hcd
[ 1587.649837] usb 4-2.1: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00
[ 1587.649849] usb 4-2.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 1587.649854] usb 4-2.1: Product: CP2102 USB to UART Bridge Controller
[ 1587.649859] usb 4-2.1: Manufacturer: Silicon Labs
[ 1587.649862] usb 4-2.1: SerialNumber: IC-7300 02046571
[ 1587.655944] cp210x 4-2.1:1.0: cp210x converter detected
[ 1587.660093] usb 4-2.1: cp210x converter now attached to ttyUSB0
[ 1587.746776] usb 4-2.4: new full-speed USB device number 7 using uhci_hcd
[ 1588.045851] usb 4-2.4: New USB device found, idVendor=08bb, idProduct=2901, bcdDevice= 1.00
[ 1588.045864] usb 4-2.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 1588.045870] usb 4-2.4: Product: USB Audio CODEC
[ 1588.045874] usb 4-2.4: Manufacturer: Burr-Brown from TI
[ 1588.131501] input: Burr-Brown from TI USB Audio CODEC as /devices/pci0000:00/0000:00:1a.1/usb4/4-2/4-2.4/4-2.4:1.3/0003:08BB:2901.0005/input/input27
[ 1588.195503] hid-generic 0003:08BB:2901.0005: input,hidraw3: USB HID v1.00 Device [Burr-Brown from TI USB Audio CODEC ] on usb-0000:00:1a.1-2.4/input3
[ 1594.255034] usb 4-2.1: usbfs: interface 0 claimed by cp210x while 'brltty' sets config #1
[ 1594.257456] cp210x ttyUSB0: cp210x converter now disconnected from ttyUSB0
[ 1594.257517] cp210x 4-2.1:1.0: device disconnected回答 1
Ask Ubuntu用户
发布于 2022-07-01 00:10:10
brltty守护进程中存在一个问题，它导致串行设备关闭。
如果您没有使用brltty (用于盲文触摸阅读设备)，那么您可以安全地删除该包：
apt remove brltty串行USB设备将在此之后保持连接。
页面原文内容由Ask Ubuntu提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://askubuntu.com/questions/1411463
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