Re: nm doesn't notice usb enet connect

[Neal Becker <ndbecker2 gmail com>]

On Thursday 09 November 2006 7:49 pm, Dan Williams wrote:
> On Thu, 2006-11-09 at 06:40 -0500, Neal Becker wrote:
> > Dan Williams wrote:
> > > On Wed, 2006-11-08 at 21:44 -0500, Neal Becker wrote:
> > >> My wired enet has a bad connection, so I bought a usb2 enet adapter. 
> > >> It works fine, but I think it points out a problem with nm.  It seems
> > >> nm doesn't notice the new adapter on eth2 if I plug it in after
> > >> startup, unless I restart nm.
> > >
> > > Does your adapter use the ne2k driver or something?  Does the driver do
> > > link detection?  NM certainly isn't going to use your adapter unless
> > > the driver can do carrier detect.  Try 'mii-tool eth0' when a cable is
> > > plugged in, or or 'ethtool eth0' and look for the "Link detected: "
> > > line.  If your cable is in, but neither of those report a link, then
> > > the driver likely needs fixing.
> > >
> > > For example, NM won't work automatically in QEMU because the ne2k_pci
> > > driver that suports the NE2000 hardware that qemu emulates doesn't
> > > support carrier detect.
> >
> > sudo /sbin/ethtool eth2
> > Settings for eth2:
> >         Supported ports: [ TP MII ]
> >         Supported link modes:   10baseT/Half 10baseT/Full
> >                                 100baseT/Half 100baseT/Full
> >         Supports auto-negotiation: Yes
> >         Advertised link modes:  10baseT/Half 10baseT/Full
> >                                 100baseT/Half 100baseT/Full
> >         Advertised auto-negotiation: Yes
> >         Speed: 100Mb/s
> >         Duplex: Full
> >         Port: MII
> >         PHYAD: 3
> >         Transceiver: internal
> >         Auto-negotiation: on
> >         Supports Wake-on: pg
> >         Wake-on: d
> >         Current message level: 0x00000007 (7)
> >         Link detected: yes
> >
> > Driver is asix
> > device is d-link EUB-E100
>
> Found a few these lying around, and got the problem in a quick test.
>
> One more thing to check; plug in a cable and do:
>
> cat /sys/class/net/eth2/carrier
>
> and see what that returns....
>
OK, so you're saying you duplicated the problem?

cat /sys/class/net/eth2/carrier
1