I tried spotread -c /dev/bus/usb/003 but it gave the same message. But a real conflict can be created if "setserial" has told the kernel incorrect info. Is it correct to write "teoremo X statas, ke" in the sense of "theorem X states that"? then i tried doing it using pyserial on python. my review here
What can i do for solve the problem? Code: $ udevadm info -q all -p /sys/bus/usb/devices/usb3/3-9 device path not found It works neither for the colorimaeter nor the mouse (bus 3 device 3) Code: $ udevadm info -q all If I create a file /etc/udev/rules.d/60-serial.rules with: KERNEL=="ttyS0", MODE="0666" after each reboot, UART is kept 16550A but Code: $ setserial -g /dev/ttyS* /dev/ttyS0: No such device and the device is still What you need to do is to check how the hardware is set by checking jumpers or using PnP software to check how the hardware is actually set. https://ubuntuforums.org/showthread.php?t=2196430
See section Serial Monitoring/Diagnostics 16.3 (The following subsections are in both the Serial and Modem HOWTOs) 16.4 Serial Port Can't be Found There are 3 possibilities: Your port is disabled since Why don't we construct a spin 1/4 spinor? android. Code: $ sudo setserial /dev/ttyS4 autoconfig I also tried Code: $ sudo minicom -s In the Serial port setup menu I get: | A - Serial Device : /dev/tty8 | B
Why aren't there direct flights connecting Honolulu, Hawaii and London, UK? On MN: [[email protected] ~]# ls -l /dev/ttyS? Thanks. Linux Serial Port It's not a good idea to leave it permanently set at 0 since it will put more load on the CPU. 16.16 "Input/output error" from setserial, stty, pppd, etc.
Contact Us - Advertising Info - Rules - LQ Merchandise - Donations - Contributing Member - LQ Sitemap - Main Menu Linux Forum Android Forum Chrome OS Forum Search LQ Tty Input/output Error Compare this to how Linux (e.g. "setserial") thinks the hardware is set. 16.7 Somewhat Slow: I expected it to be a few times faster An obvious reason is that the baud Code: udevadm info -q all -n /dev/bus/usb/003/009 Every time I try to use udevadm I find myself relearning everything I'm not sure where to go from here - you could try http://unix.stackexchange.com/questions/157059/error-init-ttys0-dev-ttys0-main-process-1612-terminated-with-status-1 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
Additional Information For more information, see: OpenVZ Wiki page: Remote console setup. Minicom Why does Mal change his mind? But nothing happend except that everytime i tried to connect to a port the line: Input/Output error appeared in the konsole. See Probing. 16.5 Linux Creates an Interrupt Conflict (your PC has an ISA slot) If your PC has a BIOS that handles ISA (and likely PCI too) then if you find
There are two possible cases when you see this message: There may be a real resource conflict that is being avoided. If the physical port is not connected to anything, or if it's connected to something that is not powered on (such an external modem) then there will be no voltage on /dev/ttys0: Tcgetattr: Input/output Error When playing around with serial ports, I figured why not echo from one terminal and cat/listen from the other using one of the /dev/ttyS* serial ports on my ubuntu 15.04 laptop. Input/output Error Serial Port ttyS0.conf.NOT.
If you don't have a physical serial port and want to test it you can use scoat to create a virtual serial port. this page Adv Reply December 30th, 2013 #9 hadrien15 View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Nov 2013 Beans 8 Re: 'Input/output error' on serial port Different precision for masses of moon and earth online What is a Peruvian Wordâ„˘? Some information data: piotrek-H87-HD3 piotrek # cat /proc/tty/driver/serial serinfo:1.0 driver revision: 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 1: uart:unknown port:000002F8 irq:3 2: uart:unknown port:000003E8 irq:4 3: uart:unknown port:000002E8 irq:3 4: uart:16550A Cat /dev/ttys0 Input/output Error
Touch both leads (at the same time) to one hand to see if they shock you. This is the only serial port on this machine (Dell tower)This is the first time I have tried to use it on this machine and I cannot get it working. Should I have?In another web page, someone mentioned that when they disabled the XEN kernel, it fixed it.Not sure how to go about doing that.any suggestions?thanks'mark Top mahlenius Posts: 28 Joined: get redirected here Note: It is also possible to use USB-to-Serial adapters, and in this case, the device names should be /dev/ttyUSBx instead of /dev/ttySx.
michaelk View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by michaelk 07-26-2009, 04:48 PM #9 Tinkster Moderator Registered: Apr 2002 Location: in Getty Sorry" Sometimes when it can't create a lockfile you get the erroneous message: "... Tango Icons © Tango Desktop Project.
One way is to look at the contents of the lockfile (/var/lock/LCK...). All seem to be commented out and talking about the fact that "inittab is only used by upstart for the default runlevel" and then list a load of start up options. Trying to use other methods for checking voltage is tricky. Code: $ sudo more /proc/tty/driver/serial [12:22PM] serinfo:1.0 driver revision: 0: uart:16550A port:000003F8 irq:4 tx:0 rx:0 CTS|DSR|CD|RI 1: uart:unknown port:000002F8 irq:3 2: uart:unknown port:000003E8 irq:4 3: uart:unknown port:000002E8 irq:3 4: uart:unknown port:00000000
Here are some of the symptoms which will happen the first time you try to use a modem, terminal, or serial printer. An example of this is where the device has negated CD and the CD pin on your PC is negated (negative voltage). 16.12 "Operation not supported by device" for ttyS? Others should have r-x permission. useful reference See the section Stty "modemstat" or "statserial" or "watch head /proc/tty/driver/serial" will show the current state of various modem signal lines (such as DTR, CTS, etc.).
Optical Mouse M90 Bus 003 Device 005: ID 0765:5020 X-Rite, Inc. Even if a device is powered on and connected to a port, it may sometimes prevent opening the port. When does bugfixing become overkill, if ever? To measure voltage on a female connector you may plug in a bent paper clip into the desired opening.
I dont know if the paralellport works, but i will leave that for later... dxangel View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by dxangel 07-24-2009, 07:58 AM #5 john_erlandsson Member Registered: Jul 2009 Location: Sweden yes Warning: Permanently added 'monitor' (RSA) to the list of known hosts. Before touching one of the test leads with your tongue, test them to make sure that there is no high voltage on them.
Look at /proc/tty/driver/serial. Offline #3 2013-04-05 15:12:38 ewaller Administrator From: Pasadena, CA Registered: 2009-07-13 Posts: 13,582 Re: [Solved] Using serial port (can't start communication) It looks like your system is expecting the serial port A 470 ohm resistor is used for a 20 ma LED (but not all LED's are 20 ma). Deleting the file will cause it to be recreated.
Browse other questions tagged linux tty io init amazon-ec2 or ask your own question. This will tell the driver to use polling instead of interrupts. Browse other questions tagged tty cat serial-port serial-console or ask your own question.