Cat /dev/ Ttys 1 Input/output Error
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Tty Input/output Error
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Cat /dev/ttys0 Input/output Error
Official Flavours Support General Help [SOLVED] 'Input/output error' on serial port Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the place to report it, thanks linux serial port ! Page 1 of 2 12 Last Jump to page: Results 1 to 10 of 12 Thread: 'Input/output error' on serial port Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode December 29th, 2013 #1 hadrien15 View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Nov 2013 Beans 8 'Input/output error' on serial port Hello, The objective minicom is to calibrate my monitor (connected via VGA) with the colorimeter X-Rite Colormunki Display connected via usb. The device is recognized : Code: $ lsusb Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 003 Device 002: ID 046d:c05a Logitech, Inc. Optical Mouse M90 Bus 003 Device 005: ID 0765:5020 X-Rite, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 1bcf:2c01 Sunplus Innovation Technology Inc. but when I run the program (Argyll) I get the following error message: Code: dispcal -r dispcal: Error - tcgetattr failed with 'Input/output error' on serial port '/dev/ttyS0' my environment: Sony Vaio SVE14A2C5E Ubuntu 12.04 (precise) 64-bit Kernel Linux 3.5.0-44-generic GNOME 3.4.2 Some weeks ago, I had windows 8 on this laptop without problem with the calibrator and Argyll. I spent my last days reading the numerous topics about it without success. I show you the outputs of some command lines: Code: $ lspci -v 00:00.0 Host bridge: Intel Corporation 3rd Gen
& Site Management Integration Options Developers eMail Components CloudLinux Extensions Extension Catalog Submit your Extension Plans & Pricing Support Resources FAQs Forums Knowledge Base Documentation Downloads Plesk University Release notes Blog Become a Partner Russian German French Spanish Chinese Japanese Italian Language English Russian German French Spanish Chinese Japanese Italian any Search How to set up a serial console to a Linux server Article ID: 10041, created on Mar 9, 2011, last review on Jun 17, 2016 https://ubuntuforums.org/showthread.php?t=2196430 Applies to: Operations Automation 5.5 Virtuozzo Virtuozzo containers for Linux Virtuozzo hypervisor Symptoms Sometimes it is necessary to set up a serial console to troubleshoot kernel crashes and server hang issues on Parallels Server Bare Metal or Parallels Containers for Linux. Resolution Connect the Parallels Server Bare Metal or Parallels Containers node (hereafter https://kb.plesk.com/en/10041 HW) with the monitoring node (hereafter MN) using a null-modem cable between the two COM ports. Try to find which of the tty consoles is responsible for the connected COM ports. On MN: [root@monitor ~]# ls -l /dev/ttyS? crw-rw---- 1 root uucp 4, 64 Feb 23 11:06 /dev/ttyS0 crw-rw---- 1 root uucp 4, 65 Feb 23 11:06 /dev/ttyS1 crw-rw---- 1 root uucp 4, 66 Feb 23 11:06 /dev/ttyS2 crw-rw---- 1 root uucp 4, 67 Feb 23 11:06 /dev/ttyS3 [root@monitor ~]# cat /dev/ttyS0 If it is not the correct console, you will get this error: [root@monitor ~]# cat /dev/ttyS3 cat: /dev/ttyS3: Input/output error If you are using correct terminal, then you will see a similar output: [root@monitor ~]# cat /dev/ttyS0 _ Now, jump to HW: [root@pvcfl46x64 ~]# for COMPORT in `ls /dev/ttyS?`; do echo ${COMPORT}; echo test > ${COMPORT} ;done /dev/ttyS0 /dev/ttyS1 -bash: echo: write error: Input/output error /dev/ttyS2 -bash: echo: write error: Input/output error /dev/ttyS3 -
port General support questions including new installations Post Reply Print view Search Advanced search 9 posts • Page 1 of 1 mahlenius Posts: 28 Joined: 2007/11/06 20:13:50 http://www.centos.org/forums/viewtopic.php?t=10753 configuring /dev/ttyS0 port Quote Postby mahlenius » 2008/02/02 21:09:37 Hi,my /dev/ttyS0 port is not working - as far as I can tell. This is the only serial port on this machine https://bbs.archlinux.org/viewtopic.php?id=160908 (Dell tower)This is the first time I have tried to use it on this machine and I cannot get it working. I have used minicom and it won't communicate to input/output error my external device. On my laptop, which is also running Centos 5, the port works fine to my external device. I have the same minicom port settings (speed, baud,,etc), but itstill will not work.Is there anything else I need to do to enusre the port is setup in the OS for usage?I did try to do a setserial cmd, but got:# setserial cat /dev/ ttys -a /dev/ttyS0Cannot get serial info: Invalid argumentnot sure if this helps, but something does not seem right....thanks'mark Top AlanBartlett Forum Moderator Posts: 9296 Joined: 2007/10/22 11:30:09 Location: ~/Earth/UK/England/Suffolk Contact: Contact AlanBartlett Website configuring /dev/ttyS0 port Quote Postby AlanBartlett » 2008/02/02 22:28:01 Is the port enabled in the BIOS?On my system, with two physical RS-232 ports both enabled in the BIOS, this is what I see:# ls -l /dev/ | grep ttyScrw-rw-rw- 1 root tty 4, 64 Jan 31 10:13 ttyS0crw-rw-rw- 1 root tty 4, 65 Jan 31 10:13 ttyS1crw-rw---- 1 root uucp 4, 66 Jan 31 10:13 ttyS2crw-rw---- 1 root uucp 4, 67 Jan 31 10:13 ttyS3# stty < /dev/ttyS0speed 9600 baud; line = 0;-brkint -imaxbel# stty < /dev/ttyS1speed 9600 baud; line = 0;-brkint -imaxbel# stty < /dev/ttyS2stty: standard input: Input/output error# stty < /dev/ttyS3stty: standard input: Input/output error# This is entirely expected behaviour.HTH.Alan. Top mahlenius Posts: 28 Joined: 2007/11/06 20:13:50 Re: configuring /dev/ttyS0 port Quote Postby mahlenius » 2008/02/02 22:37:39 Hi,I have one follow up to the setserial command. I looked in the /var/log/messages file and found that it looks like it has
1 #1 2013-04-05 14:35:39 Hexorg Member Registered: 2009-02-23 Posts: 27 [Solved] Using serial port (can't start communication) Hello everyone. I'm trying to connect to a switch through a built-in to motherboard serial port using minicom. I have arch running on vanilla kernel. `zgrep -i serial /proc/config.gz` tells me that CONFIG_SERIAL_8250=y, but `dmesg | grep tty` shows only tty0 active. I can't see anything serial port related with neither lspci, lshw, nor lsusb.I do have /dev/ttyS[0-3] but if I try to cat any of them it gives me input/output error. `setserial /dev/ttyS0` says "/dev/ttyS0, UART: unknown, Port: 0x03f8, IRQ: 4". Setting uart to 8250 with setserial did not help :-\I also tried starting agetty@ttyS0.service, no luck either.It seems like it *should* work out-of-box. But I can't communicate with the switch :-\Can someone please help me get the serial port working?TL;DR:-> Hardware serial port-> Vanilla kernel-> `dmesg | grep tty` shows only tty0-> `setserial /dev/ttyS0` says "/dev/ttyS0, UART: unknown, Port: 0x03f8, IRQ: 4"-> cat: /dev/ttyS0: Input/output error-> Minicom stays dark.-> Thanks for help! Last edited by Hexorg (2013-04-05 15:12:43) Offline #2 2013-04-05 15:12:08 Hexorg Member Registered: 2009-02-23 Posts: 27 Re: [Solved] Using serial port (can't start communication) Nevermind... Someone had serial port disabled in BIOS... Offline #3 2013-04-05 15:12:38 ewaller Administrator From: Pasadena, CA Registered: 2009-07-13 Posts: 13,471 Re: [Solved] Using serial port (can't start communication) It looks like your system is expecting the serial port to exist on the old ISA bus. Most modern architectures use a LPC (Low Pin Count) bus to provide ISA bus services. The kernel sets up the four legacy MSDOS COM: ports of 0x3f8, 0x2f8, 0x3e8 and 0x02e8 sharing iqq's 3 and 4 and maps them to /dev/ttyS[[0-3]; regardless of whether there is really hardware there.The question is: How is your serial port actually implemented? Do you know for certain that it is implemented as an legacy ISA device ? (Even though the hardware layer may be on the LPC bus?). If it is, is this a BIOS machine? Are the ports enabled in BIOS, mapped to the addresses the Linux kernel expects? Any chance the serial ports are implemented on a USB or PCI bus interface instead?Edit: Too slow.... At least I was on the right path Last edited by ewaller (2013-04-05 15:13:12) Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michae