Bug 473166
| Summary: | Slow to detect Novatel USB EVDO modem | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Frank Cox <theatre> |
| Component: | kernel | Assignee: | Pete Zaitcev <zaitcev> |
| Status: | CLOSED WONTFIX | QA Contact: | Fedora Extras Quality Assurance <extras-qa> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 10 | CC: | kernel-maint |
| Target Milestone: | --- | Keywords: | Triaged |
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2009-12-18 06:57:50 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
I have now discovered what changes when the five minute delay is up. As mentioned before, the modem takes 5 minutes before it creates the /tty/USB? devices. Somehow, the modem changes its identity after being plugged in for 5 minutes. When the modem is first plugged in, this is what is created in /proc/bus/usb/devices: T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1410 ProdID=5010 Rev= 0.00 S: Manufacturer=Novatel Wireless Inc. S: Product=Novatel Wireless CDMA S: SerialNumber=091087439150000 C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=87(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=08(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms After five minutes, this is what I find in /proc/bus/usb/devices: T: Bus=04 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=1410 ProdID=4100 Rev= 0.00 S: Manufacturer=Novatel Wireless Inc. S: Product=Novatel Wireless CDMA S: SerialNumber=091087439151000 C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=128ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=84(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=04(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=89(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=09(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=8a(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=0a(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 4 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=85(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=06(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms Notice that the product id has magically changed from 5010 to 4100. This is the point at which the modem begins working and the /tty/USB? devices are created. I put this same modem on a machine running Centos 5 and found the exact same behaviour, though I have to use a modprobe command to make it recognize the modem on Centos 5 (modprobe usbserial vendor=0x1410 product=0x4100) and the modprobe is not required to make it recognize the modem on Fedora 10. The product id changes in the same way in /proc/bus/usb/devices, after the same five minute wait. HERE IS A WORK-AROUND FOR THIS BUG Jamie Bernstein (jamie at bernstein.be) is also using a Novatel USB modem and he advised me that this command will cause the modem to immediately do its thing (reset?) and create the /dev/ttyUSB? devices. eject /dev/cdrom After entering this command at a terminal prompt (or putting it into /etc/rc.local if the modem is connected on boot-up) the modem immediately starts working. No 5 minute wait required. Therefore, if there is some way that the kernel driver for this modem can issue a similar "reset" command, the problem may go away. Instead of changing rc.local, t would be better to add a udev rule like this:
DRIVER=="sr", SYSFS{idVendor}=="1410", SYSFS{idProduct}=="5010", RUN+="/usr/bin/eject /dev/sr%n"
Not sure about %n, this might need some experimentation.
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Description of problem: It takes five minutes from plugging a Novatel Wireless modem into the USB slot (or from booting up the computer with the modem already attached) before the machine realizes that it has a modem. Here is the /var/log/messages output: > Nov 26 12:20:09 mutt kernel: usb 7-2: new full speed USB device using uhci_hcd and address 2 > Nov 26 12:20:09 mutt kernel: usb 7-2: configuration #1 chosen from 1 choice > Nov 26 12:20:09 mutt kernel: usb 7-2: New USB device found, idVendor=1410, idProduct=5010 > Nov 26 12:20:09 mutt kernel: usb 7-2: New USB device strings: Mfr=1, Product=2, SerialNumber=4 > Nov 26 12:20:09 mutt kernel: usb 7-2: Product: Novatel Wireless CDMA > Nov 26 12:20:09 mutt kernel: usb 7-2: Manufacturer: Novatel Wireless Inc. > Nov 26 12:20:09 mutt kernel: usb 7-2: SerialNumber: 091087439150000 > Nov 26 12:20:10 mutt kernel: Initializing USB Mass Storage driver... > Nov 26 12:20:10 mutt kernel: scsi6 : SCSI emulation for USB Mass Storage devices > Nov 26 12:20:10 mutt kernel: usbcore: registered new interface driver usb-storage > Nov 26 12:20:10 mutt kernel: USB Mass Storage support registered. > Nov 26 12:20:15 mutt kernel: scsi 6:0:0:0: CD-ROM Novatel Mass Storage 1.00 PQ: 0 ANSI: 2 > Nov 26 12:20:15 mutt kernel: sr1: scsi-1 drive > Nov 26 12:20:15 mutt kernel: sr 6:0:0:0: Attached scsi generic sg2 type 5 > Nov 26 12:20:16 mutt kernel: sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00 > Nov 26 12:20:16 mutt kernel: sr: Sense Key : No Sense [current] > Nov 26 12:20:16 mutt kernel: sr: Add. Sense: No additional sense information > Nov 26 12:20:17 mutt kernel: sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00 > Nov 26 12:20:17 mutt kernel: sr: Sense Key : No Sense [current] > Nov 26 12:20:17 mutt kernel: sr: Add. Sense: No additional sense information > Nov 26 12:20:17 mutt kernel: sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 28 00 00 00 00 10 00 > Nov 26 12:20:17 mutt kernel: sr: Sense Key : No Sense [current] > Nov 26 12:20:17 mutt kernel: sr: Add. Sense: No additional sense information > Nov 26 12:20:17 mutt kernel: sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 20 00 00 00 00 18 00 > Nov 26 12:20:17 mutt kernel: sr: Sense Key : No Sense [current] > Nov 26 12:20:17 mutt kernel: sr: Add. Sense: No additional sense information > Nov 26 12:20:17 mutt kernel: sr1: CDROM (ioctl) error, command: Get configuration 46 00 00 00 00 00 00 00 20 00 > Nov 26 12:20:17 mutt kernel: sr: Sense Key : No Sense [current] > Nov 26 12:20:17 mutt kernel: sr: Add. Sense: No additional sense information > Nov 26 12:20:17 mutt gnome-keyring-daemon[2986]: adding removable location: volume_label_Novatel_Mobilink at /media/Novatel Mobilink > Nov 26 12:20:17 mutt hald: mounted /dev/sr1 on behalf of uid 500 > Nov 26 12:23:23 mutt ntpd[2242]: kernel time sync status change 4001 > Nov 26 12:26:53 mutt kernel: usb 7-2: USB disconnect, address 2 > Nov 26 12:26:53 mutt hald[2073]: forcibly attempting to lazy unmount /dev/sr1 as enclosing drive was disconnected > Nov 26 12:26:53 mutt kernel: scsi 6:0:0:0: rejecting I/O to dead device > Nov 26 12:26:53 mutt gnome-keyring-daemon[2986]: removing removable location: volume_label_Novatel_Mobilink > Nov 26 12:26:53 mutt hald: unmounted /dev/sr1 from '/media/Novatel Mobilink' on behalf of uid 0 > Nov 26 12:26:54 mutt kernel: usb 7-2: new full speed USB device using uhci_hcd and address 3 > Nov 26 12:26:55 mutt kernel: usb 7-2: configuration #1 chosen from 1 choice > Nov 26 12:26:55 mutt kernel: scsi7 : SCSI emulation for USB Mass Storage devices > Nov 26 12:26:55 mutt kernel: usb 7-2: New USB device found, idVendor=1410, idProduct=4100 > Nov 26 12:26:55 mutt kernel: usb 7-2: New USB device strings: Mfr=1, Product=2, SerialNumber=4 > Nov 26 12:26:55 mutt kernel: usb 7-2: Product: Novatel Wireless CDMA > Nov 26 12:26:55 mutt kernel: usb 7-2: Manufacturer: Novatel Wireless Inc. > Nov 26 12:26:55 mutt kernel: usb 7-2: SerialNumber: 091087439151000 > Nov 26 12:26:55 mutt kernel: usbcore: registered new interface driver usbserial > Nov 26 12:26:55 mutt kernel: usbserial: USB Serial support registered for generic > Nov 26 12:26:55 mutt kernel: usbcore: registered new interface driver usbserial_generic > Nov 26 12:26:55 mutt kernel: usbserial: USB Serial Driver core > Nov 26 12:26:55 mutt kernel: usbserial: USB Serial support registered for GSM modem (1-port) > Nov 26 12:26:55 mutt kernel: option 7-2:1.0: GSM modem (1-port) converter detected > Nov 26 12:26:55 mutt kernel: usb 7-2: GSM modem (1-port) converter now attached to ttyUSB0 > Nov 26 12:26:55 mutt kernel: option 7-2:1.1: GSM modem (1-port) converter detected > Nov 26 12:26:55 mutt kernel: usb 7-2: GSM modem (1-port) converter now attached to ttyUSB1 > Nov 26 12:26:55 mutt kernel: option 7-2:1.2: GSM modem (1-port) converter detected > Nov 26 12:26:55 mutt kernel: usb 7-2: GSM modem (1-port) converter now attached to ttyUSB2 > Nov 26 12:26:55 mutt kernel: option 7-2:1.3: GSM modem (1-port) converter detected > Nov 26 12:26:55 mutt kernel: usb 7-2: GSM modem (1-port) converter now attached to ttyUSB3 > Nov 26 12:26:55 mutt kernel: usbcore: registered new interface driver option > Nov 26 12:26:55 mutt kernel: option: USB Driver for GSM modems: v0.7.2 > Nov 26 12:27:00 mutt kernel: scsi 7:0:0:0: Direct-Access Novatel MMC Storage 2.31 PQ: 0 ANSI: 2 > Nov 26 12:27:00 mutt kernel: sd 7:0:0:0: [sdb] Attached SCSI removable disk > Nov 26 12:27:00 mutt kernel: sd 7:0:0:0: Attached scsi generic sg2 type 0 > Nov 26 12:29:54 mutt kernel: usb 7-2: USB disconnect, address 3 > Nov 26 12:29:54 mutt kernel: option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 > Nov 26 12:29:54 mutt kernel: option 7-2:1.0: device disconnected > Nov 26 12:29:54 mutt kernel: option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 > Nov 26 12:29:54 mutt kernel: option 7-2:1.1: device disconnected > Nov 26 12:29:54 mutt kernel: option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2 > Nov 26 12:29:54 mutt kernel: option 7-2:1.2: device disconnected > Nov 26 12:29:54 mutt kernel: option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3 > Nov 26 12:29:54 mutt kernel: option 7-2:1.3: device disconnected Version-Release number of selected component (if applicable): I have tried this on three differnent computers with exactly the same result: One Fedora 9/x86_64, one Fedora 10/i386 and one Fedora 10/x86_64. How reproducible: Steps to Reproduce: 1.Plug in Novatel EVDO USB modem 2.The modem is immediately mounted as a "storage device" but that's it. No /tty/USB? devices are set up. 3. Wait five minutes. 4. The modem suddenly mounts itself as a modem and sets up the /tty/USB? devices and starts to work. 5. No other action is required to get the modem to activate. All it takes is waiting five minutes. Actual results: Five minute wait before modem is found and activated Expected results: The modem should be found immediately. The device is detected immediately as a storage device but doesn't follow through with the rest of the job and set itself up as a modem until five minutes later. Additional info: Affects at least Fedora 9 and Fedora 10 on both x86_64 and i386 architectures.