按官方說明已經(jīng)成功加載KO模塊 lsmod 正常。插入設(shè)備LSUSB也有的，但就是沒出現(xiàn)/dev/ttyCH340? 這個(gè)節(jié)點(diǎn)文件
環(huán)境是ubuntu kylin 22
熱門產(chǎn)品 :
CH32L103: 32位PDUSB低功耗單片機(jī)
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ch340 linux 驅(qū)動(dòng)問題
tongxinmao.com
發(fā)表于: 2023-03-22 15:44:20
您好，您可重新插拔設(shè)備后查看日志，設(shè)備是否有正常生成節(jié)點(diǎn)以及節(jié)點(diǎn)名稱，另設(shè)備ID您可截圖發(fā)出，我們進(jìn)行查看。
tongxinmao.com
發(fā)表于: 2023-03-24 07:23:18
已解決：
BRLTTY is a background process (daemon) providing access to the Linux/Unix console (when in text mode) for a blind person using a refreshable braille display.
brltty是一個(gè)后臺(tái)進(jìn)程（守護(hù)進(jìn)程），為盲人提供對(duì)Linux/Unix控制臺(tái)的訪問（當(dāng)處于文本模式時(shí)），使用可刷新盲文顯示。
直接刪除 brltty 后有ttyUSB0了
Bus 002 Device 009: ID 1a86:7523 QinHeng Electronics CH340 serial converter
~/CH341SER_LINUX/driver$ lsmod | grep ch34
ch341? ? ? ? ? ? ? ? ? 24576? 0
usbserial? ? ? ? ? ? ? 57344? 1 ch341
47828.570087] usb 2-2.2: new full-speed USB device number 9 using uhci_hcd
[47828.880291] usb 2-2.2: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64
[47828.880348] usb 2-2.2: New USB device strings: Mfr=0, Product=2, SerialNumber=0
[47828.880350] usb 2-2.2: Product: USB Serial
[47828.885685] ch341 2-2.2:1.0: ch341-uart converter detected
[47828.899624] usb 2-2.2: ch341-uart converter now attached to ttyUSB0
[47829.512414] input: BRLTTY 6.4 Linux Screen Driver Keyboard as /devices/virtual/input/input9
[47829.522626] usb 2-2.2: usbfs: interface 0 claimed by ch341 while 'brltty' sets config #1
[47829.528528] ch341-uart ttyUSB0: ch341-uart converter now disconnected from ttyUSB0
[47829.528769] ch341 2-2.2:1.0: device disconnected
[47836.258993] usb 2-2.2: usbfs: USBDEVFS_CONTROL failed cmd brltty rqt 128 rq 6 len 255 ret -110
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