Re: Looking for advice about using NM with a Sprint U301 modem
Hi Daenyth,
On Wed, Jun 02, 2010 at 12:54:40PM -0400, Daenyth Blank wrote:
> I'm looking into the 598 now, and I'm having a little trouble getting
> NM to recognize it. I plug in the device and I can see by using dmesg
> that the sierra driver gets loaded, but when I run
> nm-connection-editor and try to edit the connection, it doesn't get
> listed in the device dropdown. Is there anything I have to do to get
> it recognized? I also haven't been able to find any good guides on
> setting it up. I'm running Ubuntu Karmic right now.
In Hardy, I have to use the option driver:
modprobe option
echo -n '1199 0025' >/sys/bus/usb-serial/drivers/option1/new_id
I use these udev rules to automate this:
SUBSYSTEM=="usb", SYSFS{idVendor}=="1199", SYSFS{idProduct}=="0025",
RUN+="/sbin/modprobe option"
SUBSYSTEM=="drivers", DEVPATH=="/bus/usb-serial/drivers/option1",
RUN+="/path/to/new_id 1199 0025 %p"
SUBSYSTEM=="tty", ATTRS{idVendor}=="1199", ATTRS{idProduct}=="0025",
SYMLINK+="modem"
This is the script called "new_id":
#!/bin/sh
if [ $# -lt 3 ]; then
echo 'too few arguments' >&2
exit 1
fi
VENDOR="${1}"
PRODUCT="${2}"
DEVPATH="${3}"
echo -n "${VENDOR} ${PRODUCT}" >"/sys/${DEVPATH}/new_id"
I believe that proper support from Sierra is forthcoming ... ?
Hope this helps.
Thanks,
Forest
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Re: Looking for advice about using NM with a Sprint U301 modem
Hi Daenyth, On Thu, May 27, 2010 at 12:04:55PM -0400, Daenyth Blank wrote: > I'm trying to find out some information regarding the Sprint U301 3G > modem. Our use case for it is that it will be attached to an embedded > machine running ubuntu with networkmanager, in addition to our > software. I've been trying to get this modem to connect reliably and > am having some issues with it. I've added a udev rule so that the > usbserial driver is given the correct vendor/product information, and > it connects automatically on boot, but not reliably. Some boots it > does not connect at all and won't until I reboot. Sometimes it > disconnects while the machine is running. If it disconnects either by > itself or from deactivating the connection, it will not connect again > and needs a reboot. The nm/mm logs say that serial requests are timing > out when it's in the non-connected state. I haven't been able to > recover from the disconnected state with anything about a reboot. > > Is there anything we can do with this device to increase reliability? > Failing that, can you recommend a usb Sprint 3G modem that will be > more reliable? If there are none, do you have any recommendations for > any brand of 3G modem that will work well in this situation? The boxes > will be deployed where manual access is not easy, so it needs to be > able to connect and recover from disconnections automatically, or at > least in a way that can be scripted easily. I ran into the same difficulties on a project. The device is unreliable, I believe due to a driver compatibility issue (I think the device needs some special handling that cdc-acm does not provide). I did some debugging with it but lacked the time and expertise to finish the job. See this thread on linux-usb: http://kerneltrap.org/mailarchive/linux-usb/2010/2/19/6257991 Interesting that you are using the generic usb-serial driver. cdc-acm automatically bound to mine when I plugged it in. We ended up switching to the Sierra Wireless 598U 3G modem for our project. It works well with the option driver. Hope this helps. Thanks, Forest -- Forest Bond http://www.alittletooquiet.net http://www.pytagsfs.org signature.asc Description: Digital signature ___ networkmanager-list mailing list networkmanager-list@gnome.org http://mail.gnome.org/mailman/listinfo/networkmanager-list
