I have a nano-style boad with a QinHeng Electronics HL-340 USB-Serial. Ubuntu v18.04.2, 64-bit These operating systems have the CDC drivers pre-installed, which means you shouldnt need to install any extra software. lsusb -d 1a86:7523 Bus 001 Device 015: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter Kernel seems to bring up correctly the driver: giu25 16:33 usb 1-1.4.3: new full-speed USB device number 15 using xhcihcd +0,085072 usb 1-1.4.3: New.
QINHENG ELECTRONICS HL 340 USB SERIAL ADAPTER UBUNTU SERIAL NUMBER
Setting serial number on CH340 USB-Serial. Description of problem: Ive bought a USB serial adapter which is based on ch340 chipset. Qinheng Electronics Hl-340 Usb-serial Adapter Qinheng Electronics Hl-340 Usb-serial Adapter (usb2.0-ser ) HL-340 USB-Serial adapter But I can download.
Easy to serial dongles and fast installation, P89V51. CH340 chip based USB to RS232 full modem cable with moulded connector housing. Bus 001 Device 003: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter But I do not get a new serial device in /dev/tty* I have kmod-usb-serial installed. This thing is made in China and identifies as a QinHeng Electronics HL-340 USB-Serial adapter in ubuntu. I have Kubuntu 14.10 development workstation and recently I have bought a QinHeng Electronics HL-340 USB-Serial adapter. From dmesg usbcore: registered new interface driver ch341 usbserial: USB Serial support registered for ch341-uart ch341 1-1.2:1.0: ch341-uart converter detected usb 1-1.2: ch341-uart converter now attached to ttyUSB0. Once the ch341 driver is installed the nano appears as /dev/ttyUSB0 and defaults to 115200 baud. The answer turns out to be that I needed the kmod-usb-serial-ch341 kernel package: opkg install kmod-usb-serial-ch341 The HL-340 is a CH 340 compatible device.
Posting this in case it is useful to others.
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