usbserial Questions

4

I want to develop an application whitch control the serial device over usb, on Linux Android. An Android OS is 3.1 that supports USB host. Q1: Please let me know how to get which port the serial...
Schuman asked 21/7, 2011 at 6:35

6

Solved

As following i able to get usb com port names attached to 32bit win7OS machine, by given pid and vid,but when running in x64 it stuck in the following line: comports.Add((string)rk6.GetValue("Por...
Typhon asked 27/4, 2012 at 12:6

12

I'm trying to fix a non-responsive USB device that's masquerading as a virtual COM port. Manual replugging works, but there may be up to 12 of these units. Is there an API command to do the program...
Reading asked 26/9, 2008 at 9:7

7

I'm getting this error... The semaphore timeout period has expired. On this line... ThePorts.ActivePort1.Open(); ...but I only get it from time to time. When it happens, it happens over a...
Stella asked 22/12, 2012 at 2:7

2

I upgraded my Linux(Opensuse from 42.3 to 15) but encountered new bug. When I connect my USBserial dongle it shows ttyUSB0 in dev folder and immediately disconnected and goes from dev list. ...
Policeman asked 3/9, 2018 at 5:42

3

Solved

Edit: I've added the sending code and an example of the received output I'm getting. I am reading data from a USB "virtual" serial port connected to an embedded system. I have written two metho...
Indicate asked 21/1, 2017 at 10:0

2

I can see FTDI module in system report But in arduino it doesn't show up I read that iOS comes with USBSerial.kext which can handle this but I don't see it working for me. I have tried installing...
Clamshell asked 15/5, 2020 at 7:40

1

Solved

I'm working with a Linux distribution (Raspbian) and I have two USB-Serial adapters which I'm connecting to the microcontroller. Whenever I connect both adapters, the serial ports "/dev/ttyUSB...
Pard asked 16/7, 2020 at 22:9

3

Apologies in advance I won't be able to accept an answer here immediately - just thought I'd like to jot this down, while I have the problem... In brief: I can observe three different buffer sizes...
Zoster asked 21/3, 2013 at 9:5

13

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I want to use android in industry, I can connect to Profilic and Ftdi USB to Serial chips with slickdevlabs.com library without any problem. The application has a service and it starts on boot,co...
Marquise asked 5/12, 2012 at 15:25

1

I'm using an Arduino Nano, previously an UNO, to collect data from sensors and then send the data back over a USB connection through a powered hub to a Raspberry Pi model B running Jessie 4.1.19+ M...
Edgewise asked 9/2, 2017 at 18:53

0

I am working on native android application. In this application I am connecting hardware devices using usb cable, for this connection I used below library: https://github.com/felHR85/UsbSerial I ...
Phytobiology asked 3/1, 2020 at 9:25

2

I am using Microsoft's usbser.sys driver to communicate with custom hardware using a serial interface emulation via USB. Since Win 8.1 I have to sign the driver. I the process, I used this comman...
Lucilla asked 1/12, 2015 at 18:16

6

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From time to time, I need to dump USB traffic under Windows, mostly to support hardware under Linux, so my primary goal is to produce dump files for protocol analysis. For USB traffic, it seems th...
Drowse asked 22/9, 2008 at 20:39

2

I have a MR400s taximeter hardware. I want to communicate with this taximeter using RS232 cable and I have already achieved this connection and communication in windows. But I wanted to make connec...
Disaccord asked 20/10, 2014 at 11:14

1

Hi I am writing a simple console app that needs to write bytes to MCP2210 USB to SPI Master I found this library over here, seems to do good job with connecting the device and reading the metadata....
Regression asked 18/1, 2019 at 8:56

2

Solved

I want to use android in industry, I can connect to Profilic and Ftdi USB to Serial chips with slickdevlabs.com library without any problem. The application has a service and it starts on boot,co...
Leadwort asked 5/5, 2016 at 10:41

3

Solved

I am trying to use screen /dev/ttyUSB0 to connect to a old computer(s) through a USB-serial interface. I have not figured out to put the correct options in my command line to get a non-gibberish f...
Loculus asked 21/12, 2016 at 15:12

8

Solved

I develop embedded systems and need serial ports for communication. In Windows XP the numbers for USB serial port dongles keep moving around, which makes it hard to use in scripts or makefiles (fo...
Haymow asked 6/12, 2012 at 10:40

3

Solved

The solution to this problem is probably pretty simple, but I am new to interfacing with a device dynamically. What I'm doing is I am making a python executable code, so the user doesn't have to ha...
Arbitress asked 1/8, 2012 at 0:23

3

Solved

I have a rf-reader with ftdio usb to serial chip. I was able to write a program to control it using ftdi d2xx library. So far so good. The issue is that when the reader is reconnected to the PC I ...
Dialect asked 29/11, 2015 at 8:59

1

I'm using a USB to RS232 cable to communicate between two linux machines. On the machine with the USB side connected, I run: dmesg | grep tty And get the following output: console [tty0] enable...
Kaz asked 7/8, 2013 at 16:21

3

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I have two different USB devices based on the same USB-RS232 chips. When I plug those in the USB they are mounted to /dev/ttyUSB0...3 My problem is how, inside a script, I can find out which one i...
Verada asked 7/2, 2012 at 21:4

1

What is the transmission speed or baud rate in a virtual serial port connection through USB 2.0 . I basically need to transfer data from an ARM microcontroller to PC. The microcontroller has suppor...
Choreodrama asked 27/4, 2015 at 6:56

7

I am reading data from multiple identical USB-serial adapters under Ubuntu 10.1. On occasion, their /dev/tty path changes (eg if other USB devices are connected on startup). I need a way of repea...
Stilted asked 25/1, 2011 at 23:38

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