Error Module Usbserial Is In Use By Option Usb_wwan
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Could Not Remove Module Device Or Resource Busy
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Rmmod Error Module Usb_storage Is In Use By Uas
not detected everytime Having an Issue With Posting ? Do you want to help us debug the posting issues ? < is the place to report it, thanks ! Page 1 of 3 123 Last Jump to page: Results 1 to 10 of 30 Thread: USB modem not detected everytime Thread Tools Show Printable Version Subscribe to this Thread… rmmod error module is in use Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode October 21st, 2012 #1 Aparna R View Profile View Forum Posts Private Message Spilled the Beans Join Date Oct 2012 Beans 15 USB modem not detected everytime I got stuck up with a problem in net connection in newly installed Ubuntu 12.04 . I am using Qual-Comm HS-USB modem to connect to internet. It was not detected initially after installation of OS.How ever,it got detected and could connect to Internet after following the steps shown here: http://askubuntu.com/questions/14398...ng-in-12-04But most of the time on starting the system it not detecting the device as a modem. It need to reboot the system,so that it got detected. I dont understand what to do. Any help would be appreciated. thanks Adv Reply October 21st, 2012 #2 NikTh View Profile View Forum Posts Private Message Visit Homepage Ubuntu Member Join Date Feb 2012 Location el_GR BeansHidden! DistroUbuntu 14.04 Trusty Tahr Re: USB modem not detected everytime Originally Posted by Aparna R and could connect to Internet aft
Sat Nov 03, 2007 12:30 am boran, your device is definitely switched. The problem is the old kernel as you guessed right. There is no way to use the "option" driver in your version;
Lsmod Used By
so the "usbserial" driver has to be used. This is not (yet) automated
Rmmod Return Code
in usb_modeswitch. But I might add it in the future. Do a "modprobe -v usbserial vendor=0x12d1 product=140c" and see if force rmmod you get ttyUSB ports. Top boran Posted: Thu Sep 09, 2010 5:11 pm Posts: 6Joined: Thu Sep 09, 2010 4:26 pm I see. But no, doesn't work that way either. modprobe -vvv https://ubuntuforums.org/showthread.php?t=2074129&page=2 usbserial vendor=0x12d1 product=140c ls -al /dev/ttyU* ls: cannot access /dev/ttyU*: No such file or directory I also tried removing modules first, just in case: rmmod usb-storage rmmod usb-serial lsusb Bus 001 Device 006: ID 12d1:140c Huawei Technologies Co., Ltd. modprobe usbserial vendor=0x12d1 product=0x140c Top Josh Posted: Thu Sep 09, 2010 5:17 pm Site AdminPosts: 5860Joined: Sat Nov 03, 2007 12:30 am O.K., please turn on logging http://www.draisberghof.de/usb_modeswitch/bb/viewtopic.php?p=3307 as indicated on the doc page, paragraph "Troubleshooting". Also, post what "dmesg" says after trying to load "usbserial" (the last 30 lines or so). Top boran Posted: Thu Sep 09, 2010 5:22 pm Posts: 6Joined: Thu Sep 09, 2010 4:26 pm These would seem to be the relevant lines, one sees the cd & storage noted in previous comments. [623445.039138] usb 1-6: USB disconnect, address 5 [623450.487024] usb 1-6: new high speed USB device using ehci_hcd and address 6 [623450.647949] usb 1-6: configuration #1 chosen from 1 choice [623455.277605] scsi11 : SCSI emulation for USB Mass Storage devices [623455.278199] usb-storage: device found at 6 [623455.278205] usb-storage: waiting for device to settle before scanning [623455.278527] scsi12 : SCSI emulation for USB Mass Storage devices [623455.278905] usb-storage: device found at 6 [623455.278912] usb-storage: waiting for device to settle before scanning [623460.269488] usb-storage: device scan complete [623460.271474] scsi 11:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 2 [623460.272985] usb-storage: device scan complete [623460.275484] scsi 12:0:0:0: Direct-Access HUAWEI MMC Storage 2.31 PQ: 0 ANSI: 2 [623460.303271] sr1: scsi-1 drive [623460.303362] sr 11:0:0:0: Attached scsi CD-ROM sr1 [623460.303432] sr 11:0:0:0: Attached scsi generic sg3 type 5 [623460.307349] sd 12:0:0:0: [sdc]
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more http://unix.stackexchange.com/questions/75554/usb-to-serial-in-chrubuntu-dev-ttyusb0-missing about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Unix & Linux Questions Tags Users Badges Unanswered Ask Question _ Unix & Linux Stack Exchange is a question and answer site for users of Linux, FreeBSD and other Un*x-like operating systems. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best answers error module are voted up and rise to the top USB to Serial in Chrubuntu - /dev/ttyUSB0 missing up vote 3 down vote favorite The usbserial stuff has been working so well for me in Ubuntu for a number of years that I have almost forgotten how to troubleshoot it. I just installed Chrubuntu, however, and now my usbserial is not just magically working. Here's the info I think you will need: uname is in use -a Linux ChrUbuntu 3.4.0 #1 SMP Sun Aug 26 19:17:55 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux I would normally expect to see the cp210x driver. (As I will show below, modprobe doesn't seem to load it.) root@ChrUbuntu:/lib/modules/3.4.0/kernel/drivers/usb/serial# ls option.ko pl2303.ko qcserial.ko sierra.ko usb_wwan.ko 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 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 001 Device 003: ID 04ca:3006 Lite-On Technology Corp. Bus 001 Device 004: ID 064e:d251 Suyin Corp. Bus 002 Device 003: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x Composite Device dmesg [ 649.111665] usb 2-1.3: new full-speed USB device number 3 using ehci_hcd [ 649.199149] usb 2-1.3: New USB device found, idVendor=10c4, idProduct=ea60 [ 649.199161] usb 2-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 649.199169] usb 2-1.3: Product: CP2103 USB to UART Bridge Controller [ 649.199175] usb 2-1.3: Manufacturer: Silicon Labs [ 649.199179] usb 2-1.3: SerialNumber: 0001 after disconnecting the device, one new line is logged in dmesg: [ 2858.730137] usb 2-1.3: USB disconnect, device number 3 lsmod Module Size Used by fuse 59885 2 rfcomm 25259 0 snd_hda_codec_hdmi 29062 1