我在 Ubuntu 上无法使用 USB 转串口。该设备包含一个 FTDI 芯片，2232D具体来说（我可以在板上看到它）。设备有两个串行端口，因此它列为/dev/ttyUSB0& /dev/ttyUSB1
dmesg 错误地将其列为2232C。
sudo dmesg
[40872.288998] usb 2-2: new full-speed USB device number 11 using xhci_hcd
[40872.441145] usb 2-2: New USB device found, idVendor=0403, idProduct=6001, bcdDevice= 5.00
[40872.441150] usb 2-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[40872.441154] usb 2-2: Product: USB <-> Serial
[40872.441157] usb 2-2: Manufacturer: FTDI
[40872.444701] ftdi_sio 2-2:1.0: FTDI USB Serial Device converter detected
[40872.444783] usb 2-2: Detected FT2232C
[40872.445025] usb 2-2: FTDI USB Serial Device converter now attached to ttyUSB0
[40872.447122] ftdi_sio 2-2:1.1: FTDI USB Serial Device converter detected
[40872.447203] usb 2-2: Detected FT2232C
[40872.447517] usb 2-2: FTDI USB Serial Device converter now attached to ttyUSB1
Diver 加载正常，我看到了 ftdi_sio
# lsusb
Bus 002 Device 010: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
# usb-devices
T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 10 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0403 ProdID=6001 Rev=05.00
S: Manufacturer=FTDI
S: Product=USB <-> Serial
C: #Ifs= 2 Cfg#= 1 Atr=a0 MxPwr=44mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=ftdi_sio
I: If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=ftdi_sio
# lsmod | grep ftdi_sio
ftdi_sio 61440 0
usbserial 49152 1 ftdi_sio
我确信我已经正确配置了端口和波特率
sudo minicom -D /dev/ttyUSB1 -b 115200
Ubuntu 详细信息
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic
Linux ThinkPad 5.3.0-40-generic #32~18.04.1-Ubuntu SMP Mon Feb 3 14:05:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
然而这在 ARCH 上运行良好。
答案1
我知道这是一个老话题，但如果有人遇到同样的问题，请检查 minicom 中的流量控制设置。在我的硬件中，流量控制已打开，导致没有传输任何内容。只需将其关闭，一切都会好起来！