Re: NetworkManager and Dell 5530

[Miles Sabin <miles milessabin com>]

[Hmm ... sorry about that, the last reply got munged somehow]

On Fri, Mar 27, 2009 at 10:16 PM, Dan Williams <dcbw redhat com> wrote:
> Can you try to blacklist the 'option' driver
> (in /etc/modprobe.d/blacklist by adding a link "blacklist option") and
> reboot, and see how many ttys you get?  The device should then be driven
> by cdc-acm instead of option, which is really the correct driver for the
> modem.

That seems to do the trick ... with "blacklist option" I get a good connection.

I'm not 100% sure how to parse your last sentence: is cdc-acm the
correct driver for the device or is option? With option I've
successfully used gpsd in conjunction with /dev/ttyUSB10 to interact
with the device's GPS ... if cdc-acm is the correct driver which would
be the correct device for the GPS stream?

> Also, the output of 'udevadm info --export-db' would be useful (remove
> non-tty-related entries) so we can see what the prober is doing.  We can
> also log the prober output to see what's going on.

Before the blacklist and reboot I get,

miles lewis:~$ udevadm info --export-db | grep ttyUSB
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.0/ttyUSB0/tty/ttyUSB0
N: ttyUSB0
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.1/ttyUSB1/tty/ttyUSB1
N: ttyUSB1
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.10/ttyUSB10/tty/ttyUSB10
N: ttyUSB10
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.2/ttyUSB2/tty/ttyUSB2
N: ttyUSB2
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.3/ttyUSB3/tty/ttyUSB3
N: ttyUSB3
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.4/ttyUSB4/tty/ttyUSB4
N: ttyUSB4
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.5/ttyUSB5/tty/ttyUSB5
N: ttyUSB5
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.6/ttyUSB6/tty/ttyUSB6
N: ttyUSB6
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.7/ttyUSB7/tty/ttyUSB7
N: ttyUSB7
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.8/ttyUSB8/tty/ttyUSB8
N: ttyUSB8
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.9/ttyUSB9/tty/ttyUSB9
N: ttyUSB9

after the blacklist and reboot I get,

miles lewis:~$ udevadm info --export-db | grep ttyACM
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.1/tty/ttyACM0
N: ttyACM0
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.3/tty/ttyACM1
N: ttyACM1
P: /devices/pci0000:00/0000:00:1d.7/usb2/2-6/2-6:1.9/tty/ttyACM2
N: ttyACM2

> Just for reference, I did check -4 against an F3507g (same card) in a
> Thinkpad X200 and it was working fine with that.  So it should be
> working OK, just need to track down what the issue is.

I believe you: I'm not whining ... just grateful for all the work
you've put in on this :-)

Cheers,


Miles