Public bug reported: Binary package hint: linux-image-2.6.31-4-generic
Attempts to open serial port created by drivers qcserial & usbserial fails with dmesg message: qcserial ttyUSB0: usb_serial_generic_open - failed resubmitting read urb, error -22 --- Release: 9.10, Ubuntu karmic (development branch) Kernel: 2.6.31-4-generic System: HP Compaq Mini 701en built-in HP un2400 Mobile Broadband Module (based on Qualcomm Gobi chipset) Hardware ID's: #1 03f0:201d Hewlett-Packard (While firmware is not loaded) #2 03f0:1f1d Hewlett-Packard (Same device with firmware loaded) What i have done: --- 1) Loaded kernel module "hp-wmi". Device with id #1 apears. (as expected) 2) Loaded kernel module "qcserial". Driver founds device and brings up serial port /dev/ttyUSB0. (as expected) dmesg output: ------------------- usb 1-6: new high speed USB device using ehci_hcd and address 7 usb 1-6: configuration #1 chosen from 1 choice qcserial 1-6:1.2: Qualcomm USB modem converter detected usb 1-6: Qualcomm USB modem converter now attached to ttyUSB0 3) Trying to load firmware into serial port /dev/ttyUSB0 results in error. Port can't be opened! Firmware loader used: http://www.codon.org.uk/~mjg59/gobi_loader dmesg output: ------------------- qcserial ttyUSB0: usb_serial_generic_open - failed resubmitting read urb, error -22 4) Recompiled usbserial kernel module with patch applied (using 2.6.31-4-generic): http://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv2.6%2Fsnapshots%2Fpatch-2.6.31-rc4-git3.bz2;z=142 5) Recompiled qcserial kernel module with patch applied: (using 2.6.31-4-generic. Another issue, see patch.) http://www.spinics.net/lists/linux-usb/msg20203.html 6) After restart i can use serial port created by qcserial driver & download firmware to device. (as expected) 7) After firmware is loaded, new device with id #2 apears (old device id #1 is replaced with id #2). (as expected) 8) qcserial driver registers new device as serial port & network-manager picks it up as modem device. (as expected) 9) All done, i can connect to internet using my 3G Mobile Broadband Modem. Information used: http://ubuntuforums.org/showthread.php?t=1008200 http://www.codon.org.uk/~mjg59/gobi_loader/ http://www.spinics.net/lists/linux-usb/msg18632.html http://www.kernel.org/diff/diffview.cgi?file=%2Fpub%2Flinux%2Fkernel%2Fv2.6%2Fsnapshots%2Fpatch-2.6.31-rc4-git3.bz2;z=142 ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: gobi qualcomm un2400 -- Attempts to open serial port created by drivers qcserial & usbserial fails https://bugs.launchpad.net/bugs/407516 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
