I see what the issue is: Some ATL cards incorrectly appear as "L1 Gigabit Ethernet" cards in lspci, but they are actually the L2 adapters, which only support 10/100 Mbps networking.
That would explain a lot! On Wed, Nov 18, 2009 at 8:56 PM, Christopher Friedt <chrisfri...@gmail.com> wrote: > Someone told me that the USRP2 does not respond when connected to a > 100/10 Mbps ethernet device. So, by default, the LEDs apparently do > not turn on unless connected to a gigabit device. > > Even though my ethernet device was a gigabit adapter, thee LEDs still > did not turn on. That leads me to believe either > > a) the MDIX auto-negotiation is not working, or > b) my ethernet device is not configured for gigabit speeds, even > though it's capable of it. > > Does anyone else on the list have a device that uses the atl1e ethernet > adapter? > > C > > On Wed, Nov 18, 2009 at 12:19 PM, Christopher Friedt > <chrisfri...@gmail.com> wrote: >> It would seem that the atl1e device does support manual MDI >> configuration, according to this [1]. >> >> >> >> [1] http://lwn.net/Articles/289918/ >> >> On Wed, Nov 18, 2009 at 12:14 PM, Christopher Friedt >> <chrisfri...@gmail.com> wrote: >>> Hi list, >>> >>> I've connected a USRP2 to my laptop's gigabit ethernet [1] and the >>> USRP2's ethernet indicator LED is not on. Running find_usrp2s returns >>> zero results on my machine, while on another machine, using the same >>> cable, the USRP2 is detected. >>> >>> I've read that some people have actually had it working well with the >>> same gigabit ethernet device [2] and was hoping that someone else >>> could say what the problem is here. My first instinct is to assume >>> that the auto-negotiation process [3] is not working. It used to be >>> the case, that if auto-negotiation was not working, a crossover cable >>> would fix the problem. Does that sound like an accurate diagnosis / >>> prognosis? >>> >>> Rather than buy a new cable, I might be able to add a bit of code to >>> the kernel driver to allow for manual switching through a /sys entry >>> (if the device supports such control operations), but I thought that I >>> would ask the list for suggestions first. >>> >>> Cheers, >>> >>> Chris >>> >>> [1] atl1e driver >>> >>> 03:00.0 Ethernet controller: Attansic Technology Corp. L1 Gigabit >>> Ethernet Adapter (rev b0) >>> >>> [2] >>> >>> http://old.nabble.com/Netgear-GA311-%28Realtek-8169%29-and-USRP-2-td20908796.html >>> >>> [3] >>> >>> http://en.wikipedia.org/wiki/Ethernet_crossover_cable#Automatic_crossover >>> >> > _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
