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failed submitting read urb error 22 Gordonville, Texas

Any suggestions please? Join our community today! Having trouble installing a piece of hardware? I have used blocking comms.

Check/change the USB port or cable? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo [at] vger More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the You seem to have CSS turned off. I don't want to make any changes before hearing from Alan Cox.

Please help.. Search this Thread 10-17-2012, 03:05 AM #1 wayson52 LQ Newbie Registered: Oct 2012 Posts: 1 Rep: Cannot communicate with serial-USB port (pl2303) I have upgraded from Centos 5 to Ken Couser Details of different commands are [email protected]:~$ uname -r 2.6.31-16-generic [email protected]:~$ dmesg [17808.868128] usb 2-1: new full speed USB device using uhci_hcd and address 2 [17809.029357] usb 2-1: configuration #1 search: re summary | shortlog | log | commit | commitdiff | tree (parent: 2314436) | patch tty_port,usb-console: Fix usb serial console open/close regression authorJason Wessel Tue, 9 Mar 2010

The problem is that the tty core doesn't know when the port is > > being used as a console. It starts up fine, but seems to choke after the controlling software (hylafax) tries to close the modem. It would be better to prevent tty_port_shutdown() from clearing ASYNCB_INITIALIZED in the first place. I don't know which ones still need to be changed.

I am new to Ubuntu so I would appreciate some assistance. Learn everything from fundamentals to systemadministration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click_______________________________________________linux-usb-***@lists.sourceforge.netTo unsubscribe, use the last form field at:https://lists.sourceforge.net/lists/listinfo/linux-usb-devel Paulo Marques 2004-03-24 20:13:39 UTC PermalinkRaw Message Post by Oliver NeukumPost by Paulo MarquesOk, done.The EINVAL is being Doing the right thing probably means switching all the tty drivers over to the tty_port model. Thanks, Jason. ----- PATCH ONE STARTS HERE----- --- drivers/char/tty_port.c | 2 +- drivers/usb/serial/console.c | 1 + include/linux/serial.h | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) --- a/drivers/char/tty_port.c +++ b/drivers/char/tty_port.c

Do not hang up the console hardware > - * or there will be tears. > + * or there will be tears. It would be better to prevent >> tty_port_shutdown() from clearing ASYNCB_INITIALIZED in the first >> place. Below is the control signal and data going out on USB bus number 7. Thanks, Ken :-) Austin25June 6th, 2010, 06:04 PMAre you using Linux drivers or Windows drivers under wine?

Do not hang up the console hardware * or there will be tears. */ - if (port->console) + if (test_bit(ASYNCB_INITIALIZED, &port->port.flags)) return; dbg("%s - port %d", __func__, port->number); -- To unsubscribe Up until 2.6.33 the > ASYNCB_INITIALIZED was being used to track this, but now it is used a > bit differently. > > We still also have the same sort of Top Post Reply Print view 2 posts • Page 1 of 1 Return to “CentOS 6 - Hardware Support” Jump to CentOS General Purpose CentOS - FAQ & Readme First The error in the logs comes out as: drivers/usb/serial/ftdi_sio.c: ftdi_open - failed submitting read urb, error -22 FTDI FT232BM Compatible ttyUSB0: FTDI FT232BM Compatible converter now disconnected from ttyUSB0 After this

I am now able to transmit the Address byte with mark parity and data bytes with space parity properly. Log In Create A New Profile Home > Maillists > Linux Kernel > Topic Advanced pl2303 ttyUSB0: pl2303_write - failed submitting write urb, error -22 Posted by Raju Rameshwar Uprade Forum Please visit this page to clear all LQ-related cookies. Do not hang up the console hardware >> - * or there will be tears. >> + * or there will be tears.

This was observed when using console=ttyUSB0,115200 as a boot argument with an FTDI device. I understand that I can withdraw my consent at any time. You are currently viewing LQ as a guest. What kernel version are you using?

Briefly describe the problem (required): Upload screenshot of ad (required): Select a file, or drag & drop file here. ✔ ✘ Please provide the ad click URL, if possible: Home Browse Learn everything from fundamentals to systemadministration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click_______________________________________________linux-usb-***@lists.sourceforge.netTo unsubscribe, use the last form field at:https://lists.sourceforge.net/lists/listinfo/linux-usb-devel Oliver Neukum 2004-03-24 18:00:29 UTC PermalinkRaw Message Post by Paulo MarquesOne thing that caught my attention was the The problem is that the tty core doesn't know when the port is > being used as a console. I will always be very thankful for your support and guidance.

Please don't fill out this field. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. This means that the URB is not unlinked.Possibly unlinking in close() is failing.Could you go to static void ftdi_close() and add a debugging printkfor the result of usb_unlink_urb() there.There is a I'm developing on the Fedora 2.4.22-1.2115 kernal with the ftdi_sio as last edited by Ian Abbot on the 23/jun/2003.

Martin reply via email to [Prev in Thread] Current Thread [Next in Thread] Re: AW: [Paparazzi-devel] data upload to Twog v1 and modem communication, Martin Mueller<= AW: AW: [Paparazzi-devel] data upload Sign up for the SourceForge newsletter: I agree to receive quotes, newsletters and other information from sourceforge.net and its partners regarding IT services and products. Contact Gossamer Threads Web Applications & Managed Hosting Powered by Gossamer Threads Inc. When you do > consider something longer term, I would like it to incorporate the other > serial settings as well, such that if the console initializes them first > the

I am using the latest version Karmic Koala. I have used blocking comms. spudgunner Programming 1 11-12-2010 01:19 PM Using an USB port as a standard DB9 Serial Port Lsteele Linux - Newbie 1 10-22-2005 09:48 AM USB Serial Port phatboyz Linux - Hardware It would be better to prevent > tty_port_shutdown() from clearing ASYNCB_INITIALIZED in the first > place.

This was observed when using >> console=ttyUSB0,115200 as a boot argument with an FTDI device. But is I run the same code outside of a X window I get this weird error but the program keeps running. Another issue is that minicom can't appear to initialize the port properly, it never throws the DTR and RTS lines to the modem. You can do this several times "by hand" and theresult is the same."while true; do ftditest /dev/usb/tts/0; done"drivers/usb/serial/ftdi_sio.c: ftdi_open - failed submitting read urb, error -22FTDI FT232BM Compatible ttyUSB0: FTDI FT232BM

If you have any suggestions, please let me know.It is normal that there is at least one call to the completion handlerafter close, because close unlinks the read URB which causes If you'd like to contribute content, let us know. Do not hang up the console hardware - * or there will be tears. + * or there will be tears. Greg, I have learned a lot from you..I am very close to the solution...thanks for your wishes..I think in coming weeks, I will be able to resolve the issues.

Please refer to our Privacy Policy or Contact Us for more details You seem to have CSS turned off. CC: Alan Cox CC: Alan Stern CC: Oliver Neukum CC: Andrew Morton Signed-off-by: Jason Wessel Signed-off-by: Greg Kroah-Hartman drivers/char/tty_port.c diff | blob | history drivers/usb/serial/console.c I don't know if you want to go for a short term approach this > way, or try to implement something different right now. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features.

The problem is that the tty core doesn't know when the port is >> being used as a console. The >> error is: >> >> ftdi_sio ttyUSB0: ftdi_submit_read_urb - failed submitting read urb, error -22 >> >> The handling of the ASYNCB_INITIALIZED changed in 2.6.32 such that in >> tty_port_shutdown() Re: [Ftdi-usb-sio-devel] Help with 4 port Byterunner From: Peter Hickey - 2004-03-29 00:10:42 Hi All, I have written by comms program from last month and it works fine (in the If this is a console the initialized + * flag is reset. */ - if (port->console) + if (port->console) { + set_bit(ASYNCB_INITIALIZED, &port->port.flags); return; + } if (drv->close) drv->close(port); } --

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