Linux and a webcam Network printing to a Canon MX850 from linux (BJNP cups driver) > Using the HL-340 USB-serial adapter with Linux (1a86:7523, driver ch341) Posted by crox on Monday, June 9.

I have Kubuntu 14.10 development workstation and recently I have bought a adapter. HL-340 is USBSerial adapter and it is recognised by my kernel: user@comp001:~$ lsusb Bus 007 Device 010: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter [.] I am trying to initiate communication via this adapter with Raspberry Pi B+ board, but I am constantly failing. Whatever text I send to the Raspberry Pi B+ via minicom, the traffic on the line is dead, I've checked with scope. I've double checked the Raspberry Pi B+ setup, the wirings (triple checked with multimeter), the scope wirings and the serial communication is dead. The port on Raspberry Pi B+ is working, because I've hooked up scope on transmit pin of serial port (on Raspberry Pi B+ side) and if I send text from Raspberry Pi B+ (via minicom under ssh tunnel), I get activity on the scope. I cannot get data from PC via USB serial dongle.

How do I test if the dongle works? Lsusb lists the device here as Bus 003 Device 002: ID 1a86:7523 QinHeng Electronics HL-340 USB-Serial adapter It is often shipped together with the sds011 sensor.

The required kernel module is called ch341 and built with the following.config entry: CONFIG_USB_SERIAL_CH341=m If you use make nconfig or make menuconfig you will find this module in -> Device Drivers -> USB support (USB_SUPPORT [=y]) -> USB Serial Converter support I had to set the communication parameters manually to 9600 baud, 8N1 before I could use the device properly: $ stty -F /dev/ttyUSB0 9600 raw.

Dan terakhir, sebelum beranjak pergi, para jamaah mengucapkan Salawat kepada Nabi Muhmmad. Doa Tahlil Arab dan Latin dan Yasin Lengkap Biar lebih jelas, kami jelaskan satu per satu bacaannya. Dan selesai sudah acaranya. Ya tinggal beres-beres deh! Dan kira-kira 10 menit setelahnya, (ini yang paling ditunggu nih) berkat berupa nasi kotak akan dibagi-bagikan hingga semua tamu yang hadir mendapat bagiannya (terkadang juga tetangga yang tidak sempat hadir tetap diberi berkat). Surat tahlil pd dan latin ya.