Red Hat / Fedora :: How To Configure USB To TTL Device
Sep 12, 2010
I have a USB CDC device that I want to use in Fedora 13.I have a USB to TTL converter that I want to use to connect a GPS with TTL output to my PC, since this PC does not have a serial port. I am running windows7 Ultimate, Fedora 13 and WinXp. The converter uses an FTDI chip.When I connected the device in windows 7 it showed as a USB device. However using the vendor supplied driver enabled it to be treated it as a COM port and I used a vendor supplied terminal to communicate with the device. The device however behaved abnormally and after a reboot stopped working showing an enumeration error.I switched to Fedora 13, where the device showed as /dev/ttyUSB0. I used stty -F /dev/USB0 ispeed 4800 and then cat /dev/ttyUSB0 to communicate with this device. It worked fine. However after a reboot it started behaving weird.
I used dmesg | grep tty and the output showed the device as being connected and disconnected frequently, although I did not disconnect it.lsusb sometimes showed an entry Bus 006 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) ICand at other times showed no such device. I thought there was a problem in the hardware.But then i connected the device to WinXP. It showed up as COM3 in the device manager. I changed the speed to 4800 bps and set flow control to XON/XOFF in the property of COM3. In the Hyperterminal application that ships with WinXp I set 8 bit data and no parity bit. It worked flawlessly. I have to make these settings at every reboot.However I want to use it under Linux (fedora 13). My guess is that if i can somehow set the XON/XOFF and 8 bit data, no parity things it would work fine
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Sep 12, 2010
I have a USB CDC device that I want to use in Fedora 13.
I have a USB to TTL converter that I want to use to connect a GPS with TTL output to my PC, since this PC does not have a serial port. I am running windows7 Ultimate, Fedora 13 and WinXp. The converter uses an FTDI chip.
When I connected the device in windows 7 it showed as a USB device. However using the vendor supplied driver enabled it to be treated it as a COM port and I used a vendor supplied terminal to communicate with the device. The device however behaved abnormally and after a reboot stopped working showing an enumeration error.
I switched to Fedora 13, where the device showed as /dev/ttyUSB0. I used stty -F /dev/USB0 ispeed 4800 and then cat /dev/ttyUSB0 to communicate with this device. It worked fine. However after a reboot it started behaving weird.
I used dmesg | grep tty and the output showed the device as being connected and disconnected frequently, although I did not disconnect it.
lsusb sometimes showed an entry
Bus 006 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC
and at other times showed no such device. I thought there was a problem in the hardware.
But then i connected the device to WinXP. It showed up as COM3 in the device manager. I changed the speed to 4800 bps and set flow control to XON/XOFF in the property of COM3. In the Hyperterminal application that ships with WinXp I set 8 bit data and no parity bit. It worked flawlessly. I have to make these settings at every reboot.
However I want to use it under Linux (fedora 13). My guess is that if i can somehow set the XON/XOFF and 8 bit data, no parity things it would work fine.
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Dec 16, 2009
I'm using CentOS 5.4 x86_64 on my Dell Inspiron 1440 laptop. How can I configure my bluetooth device through CentOS?
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Jan 31, 2011
I tried to find an answer through searching the web and this forum, but there doesn't seem to be anyone who encountered this problem: I installed jajuk on ubuntu and it is working just great, apart from the fact that I can't get to the 'Configure device' window.Tried it through the Configuration Perspective (Devices View), there rightclicking on the icon of my device and selecting 'configure device', but nothing happens. I tried the same in the Files Perspective, where you can also get the right-click menu to select 'configure device' from. But to no avail.
Is this problem known, or does anybody know a workaround?(for example: also the 'New device' button in Devices View doesn't work, but I can work around it by using the Device Wizard) It seems to be a ubuntu/linux specific problem, as on my Mac, jajuk works fine.
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Oct 2, 2010
I have a usb 4G dongle which has stated no linux support in australia from vividwireless.
The flip flop part does not exist for me in the sense I can not see the cd autorun files so I downloaded the files off the net and put them in my wine directory
I attempted to run the exe file thru wine but whether I try graphical or command line....it defaults to a graphical dialog box....I click on English...installer then shows the dialog box for the welcome screen ...then I click on next and the screen shows for a nanosecond the user agreement but exits with no log etc.
2) so in linux here is the info
Code:
Bus 001 Device 020: ID 12d1:380b Huawei Technologies Co., Ltd. but when I press lsusb again....that info disappears....hmmm
ok so
Code:
Oct 3 06:42:35 sid rsyslogd: [origin software="rsyslogd" swVersion="4.6.4" x-pid="1435" x-info="http://www.rsyslog.com"] rsyslogd was HUPed, type 'lightweight'.
Oct 3 07:00:15 sid kernel: usb 1-8: new high speed USB device using ehci_hcd and address 3
[Code]....
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Jan 19, 2010
I have a Netgear wgps606 wireless print server with a 4 port switch. My question is how do I configure my ubuntu 9.1 laptop to vwork with this device.
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Sep 8, 2010
I have a syslog server which is logging locally and also receiving syslogs from another device. The other device doesnt allow you to change the facility. The facility it is using is "4 - security/authorization messages". Is there anyway to configure syslog so that it writes the sec/auth logs in different places for both the local machine and the remote machine?
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Mar 5, 2011
I have Ubuntu 9.04 in my desktop, I am trying to configure Photon+ wireless device in my desktop, since it is having .exe file i am finding difficulty to configure it( I know .exe will not work) , but i want to know is there any possibility to configure this modem in Ubuntu machine....
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Jan 28, 2010
I have installed Linux SuSE 10.3 on a PC (Lenovo Thinkstation A58). However, when I start the computer I get the following error message:
"No valid Host_ID or host-name found."
I then use YaST to set up the network. I get the following error message:
"Unable to configure the network card because the kernel device is not present."
The computer has Windows 7 installed and everything seems to work fine. The LED on the Ethernetplug is blinking when using Windows, but not when using Linux. I guess this means that there is no driver for the Ethernet card (Marvell Yukon 88E8057). I have not found any driver for the card and am considering buying a new one. Which PCI card works with SuSE Linux 10.3?
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Mar 18, 2011
I have a Linux application(ProMAX 5000) running in a virtual Machine on my windows OS. I am using an external Hard drive of 250G in ext2 file system as my device for large data read, write & execute file system. I have already mounted the device from /etc/fstab. But i want my application to access this device as a Primary data storage device OR Secondary storage device. What command will i invoke to partition this 250G drive as my primary or secondary storage device.
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Apr 7, 2011
I am working on an embedded system, which is an USB MSC device that supports some vendor specific scsi commands. I am using FC10 laptop as USB host for testing, and it runs some small apps based on sg3. All has been well for ~ a week. The FC10 laptop is able to communicate with the device and retrieve data. Suddenly, starting from today, the laptop is not able to properly detect the device. When plugged-in, the MSC device is detected as input device (I thought). This is observed from "dmesg" output and changes in "/dev/input/".The device under development is running at full speed. When I connect to winXP, no problem. A windows file explorer pops up, showing the content of the drive.Also, the FC10 has no problem with other USB flash drive (high speed).
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Sep 19, 2009
I am currently using fedora 11 kernel 2.6.29 version, i wanted to write device driver for usb to detect my own device. My project is radio with computer. My fm radio get connected to usb port so i need to write h/w interfacing program.
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Nov 30, 2010
Installed a TP-Link TG-3269 Gigabit card in a machine running OS 11.3 32 bit, when I go into Yast, Network Devices, Network to try configuring the card I get this errormsg: Unable to configure the network card because the kernel device (eth0, wlan0) is not present. This is mostly caused by missing firmware (for wlan devices). See dmesg output for details. Couldn't find any mention of the card in dmesg's output, (though the 8139 onboard card is in there) there is some stuff about pci host bridge but I don't know whether they would be relevant or not
The chip on the card says it's rtl8169sc but lspci lists it as being 00:07.0 Ethernet controller: Realtek Semiconductor Co., Ltd. Device 8369 (rev 10) Done some googling and there don't seem be any drivers for a Realtek 8639 and it returns no matches from a search on realtek's site, but there is a driver there for rtl8169sc chips, which I downloaded and installed, no errors when installing it Even after a reboot I still get the same error in Yast's Network Settings screen, lspci still lists it as 8369 and the device isn't listed at all if I run ifconfig
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Aug 14, 2009
I installed ZTE MF 626 modem in my F10 with kernel 2.6.27.12-170, i run usb_modeswitch and so far things happened normally. Watching through /var/log/messages it says that F10 detects two port device for this modem: ttyUSB1 and ttyUSB2, and in the sequence it disable port ttyUSB1 BUT Network Manager still set this port.I mean, when i connect via wvdial appointing to ttyUSB2 i get connection, but Network Manager fails to do it appointing to ttyUSB1. How to change device port in Network Manager?
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Jun 28, 2010
Running Fedora 13, I cannot add my HP J4680 through the HP Device Manager. I get an error message saying that the print queue cannot be started and it asks me to restart CUPS. I tried restarting CUPS and adding the device. It did not work. The printer is on my home network wirelessly. I can add it through the CUPS web interface and print, but then I cannot access the scanner. I tried adding the device after it was already added through CUPS, but that did not work. I would like to use the scanner; I don't really care about the fax.
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Jan 30, 2010
i tried following the readme file included in the driver of the usb network adapter but seems its not exact.
any ideas on how i can configure it manually? KDE does not detect any wifi device. .(of course since no driver is installed yet).
i used my desktop (win***)with DSL connection and installed the driver of the usb net adapter.. made it as the access point. . so my laptop detects the desktop as wifi spot.
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Jan 7, 2010
I just added a 2 port network card to a system that is running Fedora 11, but it is INACTIVE. I open the Network Device Control to activate it but there is no network ports in Network Device Control. It is empty.It looks like the system recognize the card and loaded correct driver.
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Apr 15, 2011
I installed debian 4.0 (etch) on an old computer with some pickled graphics card in it, and then I upgraded the computer to one with slightly newer hardware only without the graphics card (the new one used on board graphics). I moved the hard drive from the old one to the new one but when I booted it up it failed to start the X-server and I got some errors listed for "device not found" and "no screens found".
I tried using "dpkg-reconfigure xserver-xorg" however I can't seem to find a working configuration. It seems pretty silly that when installing debian it can detect all this automatically with no problems but when it comes to changing some hardware around you are left in the dark with a complicated re-configuration process. Is there not some way to automate this? I'd rather not have to re-install everything
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Aug 12, 2009
host A: Fedora 7 has bind 9.4.2
host B: Fedora 11 has bind 9.6.1
I want to migrate my bind configuration from A to B I've read the release notes and man pages and I can't see why copying
/etc/named*
and
/var/named/*
I checked /etc/sysconfig/named too... Seems to have no effect on my brand new install on Fedora 11. Host B stays basically un-configured.
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Jul 5, 2011
I have recently installed fedora 15, I'm trying to connect my mobile phone to my laptop through bluetooth, when I did setup new device it is just showing device address and (instead of name), and the forward button is not enabled..FYI - I have started and enabled the bluetooth services using systemctl
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May 15, 2011
Recently, I created a device sc0 through device mapper. The divice could be found in /dev/mapper/sc0. My problem is that the device doesn't exist in /dev/partitions which will block my following test.BTW, I found dm-0 in /dev/partitions. Is it the same as /dev/mapper/sc0? But the device /dev/dm-0 doesn't exist!
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Apr 13, 2010
All my music editing software programs say, "unable to open device /dev/dsp.Device or resource busy." How can I fix this?
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Jun 11, 2011
I rebooted my server and out of nowhere the RAID5 array won't assemble. I've tried everything I could think of to reassemble the thing. I fear that the array is ruined, but I can't imagine how. Here are various bits of information: The simplest failure (with and without partition numbers, which have not been needed in the past):
Code:
richard@nas:~$ sudo mdadm --assemble --verbose /dev/md0 /dev/sd[bcd]
mdadm: looking for devices for /dev/md0
mdadm: cannot open device /dev/sdb: Device or resource busy
[code]...
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Apr 4, 2010
I am trying to follow this tutorial below so that I can get Text to the right of icons on the GNOME desktop. [URL] Everything so far has worked fine, except when I get to step 3 where I compile Nautilus. When I try to run the command ./configure --prefix=/usr It tells me bash: ./configure: No such file or directory
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Mar 11, 2010
For those that use Virtualbox on their slackware host and have a windows (xp) guest running. I have tried various settings for sound (Alsa, PulseAudio), the AC97 drivers are installed in the Windows xp guest os, but there is no sound and there is an unknown audio device (in the windows device manager). If I remove the AC97 drivers and use the soundblaster16 drivers in the Vbox settings there is no unknown sound device, but there's still no sound. why I can't get sound working?
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Aug 23, 2011
I've bought an X10 Home Automation USB interface: the CM15.
This is the information lsusb gives:
skerit@KIP-DU-SKER:~$ lsusb Bus 008 Device 002: ID 0bc7:0001 X10 Wireless Technology, Inc. ActiveHome (ACPI-compliant)
But this tells me nothing about where the device file is! How can I find that, or create one myself?
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May 24, 2011
the message from dmesg for the IrDA device:
[ 3635.194162] usb 3-1: new full speed USB device using uhci_hcd and address 2
[ 3635.338159] usb 3-1: New USB device found, idVendor=066f, idProduct=4200
[ 3635.338165] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[code]...
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Jan 7, 2010
here we have an older digicam (Jenoptik/Exakta Model "DC 22", if someone might want to know) that can be switched between some "PC Camera mode" and "Mass storage mode".Unfortunately, if attached to USB, it is always recognized as
Code:
UDEV [1262910483.475886] add /class/video4linux/video0 (video4linux)
lsusb tells:
[code]...
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Sep 17, 2009
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Mar 19, 2011
I found a tool made for Ubuntu called Xautoclick. I downloaded it and it is called "xautoclick-0.30.tar.gz" The installation notes say "tallatBe sure you have the proper development packages for your distribution installed (i.e. something like xserver-xorg-dev, gtk2-dev, et cetera). After that, run:
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