I would suggest using Ubuntu 16.04.4 (64-bit), and UHD 3.10.3.0. Make sure that there is nothing in your BIOS that is forcing the USB port to operate in USB 2.0 mode.
--Neel Pandeya On 12 July 2018 at 07:34, Marcus D. Leech via USRP-users < usrp-users@lists.ettus.com> wrote: > On 07/12/2018 05:22 AM, Yeats Luo via USRP-users wrote: > > Dear all: > > > > This might be a common problem to many of you but I can’t solve it on my > own. > > > > The machine is Dell desktop acquired in recent year, OS is uBuntu 14.04.04 > ith XCHI enabled kernel. > > The USRP B210 is literally attached to the USB 3.0 port with a proper > cable, but was immediately recognized as a USB 2.0 device based on > dmesg/lsusb/uhd_usrp_probe messages. > > > > Various tweaking and switching tricks are in vain. Computer was changed, > BIOS was checked. Whether to install UHD driver is proven irrelevant. > There’s even no legacy options to turn off in the BIOS. > > > > Expecting any expert to direct us out of this mist. Regards, > > > > > > root@usrp:/# lsusb -t > > > > /: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M > > > > |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M > > > > |__ Port 4: Dev 19, If 0, Class=Vendor Specific Class, Driver=, 480M > > > > |__ Port 4: Dev 19, If 1, Class=Vendor Specific Class, Driver=, 480M > > > > |__ Port 4: Dev 19, If 2, Class=Vendor Specific Class, Driver=, 480M > > > > |__ Port 4: Dev 19, If 3, Class=Vendor Specific Class, Driver=, 480M > > > > |__ Port 4: Dev 19, If 4, Class=Vendor Specific Class, Driver=, 480M > > > > /: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/3p, 480M > > |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M > > > > /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M > > > > /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/15p, 480M > > > > root@usrp:/# usb-devices > > > > .... > > > > T: Bus=02 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=5000 MxCh= 6 > > > > D: Ver= 3.00 Cls=09(hub ) Sub=00 Prot=03 MxPS= 9 #Cfgs= 1 > > > > P: Vendor=1d6b ProdID=0003 Rev=03.19 > > > > S: Manufacturer=Linux 3.19.0-61-lowlatency xhci-hcd > > > > S: Product=xHCI Host Controller > > > > S: SerialNumber=0000:00:14.0 > > > > C: #Ifs= 1 Cfg#= 1 Atr=e0 MxPwr=0mA > > > > I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub > > > > .... > > > > T: Bus=04 Lev=02 Prnt=02 Port=03 Cnt=01 Dev#= 19 Spd=480 MxCh= 0 > > > > D: Ver= 2.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 > > > > P: Vendor=2500 ProdID=0020 Rev=00.00 > > > > S: Manufacturer=Ettus Research LLC > > > > S: Product=USRP B200 > > > > S: SerialNumber=312AC75 > > > > C: #Ifs= 5 Cfg#= 1 Atr=80 MxPwr=2mA > > > > I: If#= 0 Alt= 0 #EPs= 0 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) > > > > I: If#= 1 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) > > > > I: If#= 2 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) > > > > I: If#= 3 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) > > > > I: If#= 4 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=(none) > > > > root@usrp:/# uhd_usrp_probe > > > > [INFO] [UHD] linux; GNU C++ version 4.8.4; Boost_105400; > UHD_3.12.0.0-release > > > > [INFO] [B200] Detected Device: B210 > > > > [INFO] [B200] Operating over USB 2. > > > > [INFO] [B200] Initialize CODEC control... > > > > [INFO] [B200] Initialize Radio control... > > > > [INFO] [B200] Performing register loopback test... > > > > [INFO] [B200] Register loopback test passed > > > > [INFO] [B200] Performing register loopback test... > > > > [INFO] [B200] Register loopback test passed > > > > [INFO] [B200] Setting master clock rate selection to 'automatic'. > > > > [INFO] [B200] Asking for clock rate 16.000000 MHz... > > > > [INFO] [B200] Actually got clock rate 16.000000 MHz. > > > > You might try a more recent version of Ubuntu. 14.04 is very old. > > > > _______________________________________________ > USRP-users mailing list > USRP-users@lists.ettus.com > http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com > >
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