Ubuntu :: Serial Port Access On 10.04?
Apr 27, 2011ive been looking through several online documents and forum posts but i cant get a clearcut answer on how to set up serial port acces in ubuntu 10.04 (server).
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OpenSUSE :: Set RxtxSerial - Java App Has Access To A Serial Port (via SiLabs CP210x Driver, Port /dev/ttyUSB0)
May 10, 2010I'm trying to set rxtxSerial to work so a Java app has access to a serial port (via SiLabs CP210x driver, port /dev/ttyUSB0). When I use update-alternatives --config java, there are 3 alternatives which provide `java'. I have tried openJDK and Sun. Both fail but with completely different messages.
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Fedora :: Access To Serial Port Denied?
May 24, 2010My program tries to open serial port on Fedora 12, and shows "Access denied" on Open Port operation. The same program runs successfully with root rights. What can I do to get COM port access as regular user?
View 2 Replies View RelatedGeneral :: Alternative USB Serial Port Access?
Aug 16, 2010was wondering if there is an alternative method to using udev rules in order to get access to the USB serial ports. Is there a command to check the names and give them to you? I'm looking for something along the lines of "ttyUSB".
View 3 Replies View RelatedGeneral :: Windows With Putty Via USB Serial Cable To Serial Port - Output Ok, Input Isn't?
Jan 13, 2010I am trying to get two way serial communications going between a Windows XP system and a Linux system (RHEL 5).I have /sbin/agetty -L 9600 ttyS0
in /etc/inittab. I am using a generic USB to serial adaptor on Windows (Unitek) and a null modem cable. I have putty configured for 9600 baud, 8 bits, no parity, one stop bit, no flow control.I get the login prompt from agetty in the putty window but input does not work; I see weird characters in the putty screen. I can echo output into the device from windows and see it, but
cat < /dev/ttyS0. just prints out weird characters from what I type.
Software :: Connect A Serial Cable To The Serial Port?
Mar 23, 2010We have a new machine with RedHat enterprise 5 on it. I need to connect a serial cable to the serial port and talk to another system (old alpha system) instead of using a VT connected to the alpha.Does RedHat come with anything like Keaterm/hyperterm/etc etc?
View 3 Replies View RelatedSoftware :: Identify The Status Of Serial Port ("Port Already Opened") From A C Program?
Feb 5, 2010I am writing some application in C, which will access a serial port device (RS232). My application is working good. But if any other application is already opened the port, I couldn't able to identify that. In windows VB program, while accessing comport through mscomm control, i am receiving an error as "Port Already Opened". But in Linux environment, through C program how can i get that? I am accessing comport 1 as follows
fd = open("/dev/ttyS0", O_RDWR | O_NOCTTY | O_SYNC);
Ubuntu :: How To Login On Gnome/X Via Serial Port
Jan 16, 2010I'm writing a point-of-sale application in Perl/Tk, to run on Ubuntu. For cashier accounts, I plan to just use normal Linux accounts. Cashier login will be done by scanning a badge with a barcode ID on it. Our barcode scanners are older serial-port types. Thus, I'd like to login to the X (Gnome) desktop, yet read the username (and password) via a serial port such as /dev/ttyS0.
View 3 Replies View RelatedUbuntu :: Unable To Read The Serial Port
May 23, 2010I am using a F232 USB to serial adapter for connecting my wireless modem to my laptop and I wrote a simple C code for reading data received by the modem transmitted by another modem installed on my target device.The problem is my code is simply giving 0.00000 (float data) output .When I use the same code with my desktop its running fine and I am getting relevant data.What may be the problem? I even changed the permission for my /dev/ttyUSB0 I am using Ubuntu 10.04 on both my laptop and desktop
below is my code
Code:
#include <stdlib.h>
#include <math.h>
#include <errno.h> /* Error number definitions */
#include <termios.h> /* POSIX terminal control definitions */
[code]....
Ubuntu :: Serial Port Emulation In Windows
Apr 5, 2011I am trying to use one serial port simultaniously for two different programs. I have a two programs that use GPS information that I would like to run at the same time. At this time only one program at a time can access a serial port. I have found a way to emulate this in Windows so that I can have both running, now I'm trying to do the same in Ubuntu. Is it possible? If yes, How? The GPS receiver is connected via a USB port.
View 1 Replies View RelatedUbuntu :: Listen To A Serial Port With The Terminal?
Apr 16, 2011I would like to listen to a virtual serialport (dev/ttyACM0). I heard you can this with the terminal in Linux. But how? Does anyone know some commands?
View 2 Replies View RelatedFedora Servers :: Serial Port On Fed 12
Mar 25, 2010Can anyone one give me some pointers please, for talking to a serial port, if I use cutecom it always returns "could not open /dev /tty0 or 1 or 3 or 4, even tried ttys0 etc
View 7 Replies View RelatedFedora :: How To Connect To Serial Port?
Jan 19, 2011i would like to connect to my cisco via a console port and i dont konw how
View 13 Replies View RelatedGeneral :: How To Know Which /dev/ttyS* Is My Serial Port
Apr 14, 2010I have a laptop which has only one serial port.
I went into:
How do I know which of those "ttyS" refers to my serial port?
Hardware :: Reading Serial Port With C?
Aug 12, 2010I have two usb2serial adapters connected to my PC with a null modem (I am doing some testing to learn serial comm for a particular application). I am writing to /dev/ttyUSB0 a trying to read /dev/ttyUSB1. I have used screen (screen /dev/ttyUSB1 115200) and am able to see the characters being written. I am also able to read and write with Python with the following code
Code: import serial,time,sys
ser1 = serial.Serial('/dev/ttyUSB0',baudrate=115200)
ser2 = serial.Serial('/dev/ttyUSB1',timeout=2,baudrate=115200)
ser1.open()
ser2.open()
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General :: How To Get Syslog Using Serial Port?
Feb 6, 2010How do I get syslog using serial port?
View 2 Replies View RelatedHardware :: Blind Serial Port
Jul 11, 2011I can't communicate with and UPS (Eaton) via a serial port. The serial port is UP and have been tested under a Windows OS.I have set up the communication parameters and tried to establish a dialog with the UPS. Minicom is installed. Nothing appears ont the screen and the VT102 has an offline status. The OS is Red Hat Enterprise Linux 5 64bits.Is somebody have examples to debug the serial port ?
View 7 Replies View RelatedHardware :: Serial Port Interrupt
Jan 25, 2011I need cause an interrupt on a serial port. If I put a single HIGH on the RX pin, will that cause one? I all ready use the 4 control lines for data.Hope I am making sense?
View 5 Replies View RelatedHardware :: Usb To Serial Port Adapter?
Apr 14, 2009I need a to add a usb serial port adapter. Are they all basically the same? Do I need to find a Linux compatibility list before I go shopping?
View 1 Replies View RelatedNetworking :: How To Bridge Tcp/ip To Serial Port
Apr 27, 2010I want to implement the following scenario :-[workstation1] <--ETHERNET-->[device 1]<--SERIAL-->[device 2]<--ETHERNET-->[workstation2]In short, a LAN over Serial link (RS-232 for instance).If there is a utility that offers such functionality, kindly give me the name, i've googled a bit, and found ser2net, but that only works with TELNETing.. i want it work like a normal LAN like file-sharing n all but over Serial.If there is no such software, then obv i have to program myself. regarding which i have more questions
View 9 Replies View RelatedGeneral :: Serial Port Programming Help
Apr 15, 2010can we use inb() and outb() functions for serial port programming ??
View 5 Replies View RelatedSoftware :: Addressing The Serial Port?
May 25, 2011I'm not a developer or programmer just a user.I'm trying to install a packet radio system using Linux. The TNC is a Kantronics KPC3.The issue I'm having is the communications programs I have tried (minicom and cutecom) do not talk to the TNC. I'm using a computer that has a serial port and it is enabled in the BIOS.I have added myself to the uucp group in an effort resolve this issue.
View 6 Replies View RelatedSoftware :: Resetting A Serial Port ?
Mar 23, 2009I communication with different subsystems using serial port. In some subsystems after running for a while, I start getting invalid data inspite of system sending correct data. For dealing with this situation I used to
reset serial ports by closing and reopening serial port, it was doing the trick but somehow when I have implemented this in my new application, this also doesn't work.
void CPort::
The ClosePort function invokes close system call.
some other way to reset serial port in Linux? I am using RHEL 4, C++ and Qt 4.2.1 for my application development. Also I have used multithreading to implement each subsystem in a separate thread. Its strange that if A,B,C are three threads, A & B run fine together but when C is introduced B starts receiving invalid data after sometime and never recovers even after resetting the port as mentioned above.
Software :: Serial Port Is Getting Hang ?
Jan 13, 2010I dot know why my serial port(minicom) is getting hang after some time. again i have to close the terminal and i have to open an new minicom to use my serial port. I dont know why it is getting hang. Please can anuone tell me why it is happening?
View 6 Replies View RelatedProgramming :: C - Serial Port Won't Open?
Sep 1, 2010I'm using C serial in a program to open and use a serial port but the port won't open for one reason or another. The program successfully runs on a different computer and when using RealTerm: Serial Capture Program, I can connect through the serial port with the same settings as I'm attempting through my c code. Anyone have any idea why it might be failing? I know this is still pretty vague, so let me know if there's other things I can tell you that might help to finding a solution
View 3 Replies View RelatedCentOS 5 :: Using USB Port For Serial Terminal?
Apr 27, 2009The /dev directory on my system shows the following entries:
/dev/tty
/dev/tty0
/dev/tty1
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CentOS 5 Networking :: How To Ssh To The Serial Port On A PC
Jan 16, 2010I would like to be able to ssh to a TCP port on my server and be directly connected to the serial port @ 115200 Null modem config. Does any body know how one can do this?
View 4 Replies View RelatedUbuntu :: Open The COM1 Port To Do Serial Communication Via PHP?
Mar 15, 2010Not really sure where to post this, so here goes... I installed apache2, php and MySQL via LAMP and everything seems to work fine but when I try to open the COM1 port to do serial communication via PHP, I get a permission denied error.
'mode com1: BAUD=9600 PARITY=N data=8 stop=1 xon=off';
$fp=fopen("COM1:","w+");
I've also tried using /dev/ttyS0 instead of COM1: but no luck. Anyone out there know what I'm doing wrong? I don't know if I need to set something up in apache2 or php or if the code is just wrong. I'm on an Acer Aspire One with Ubuntu's LNR 9.10.
Ubuntu :: Serial Port Read, Write After DTR Toggle In C++?
Mar 31, 2011I need to read and write to a serial device. When I connect via gtkterm, I need to toggle DTR before I can communicate with the device . My problem is that I cannot emulate this in C++.
I want to write some code that can setup a comport, toggle the DTR, then read and write strings to the port. However all my attempts have been fruitless. My serial settings are B9600, No parity, no hardware control, 8 bt characters and 1 stop bit:
Code:
#include <iostream>
#include <SerialStream.h>
#include <sys/ioctl.h>
#include <fcntl.h>
using namespace LibSerial;
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Ubuntu Servers :: Get Console Output Over A Serial - COM - Port?
May 28, 2011Is there a way to get console output over a serial (COM) port? I have a box that I use as a NAS, DNS, DHCP and mt-daapd server, I don't have a spare monitor and it is not worth buying one just to use it once or twice a year.
I found this guide [url] but it doesn't work with Natty