[USRP-users] usrp x300 detection over pcie

Neel Pandeya neel.pandeya at ettus.com
Fri Dec 5 12:58:15 EST 2014

Hello Stan:

Are you using a 64-bit kernel??


On Fri, Dec 5, 2014 at 9:36 AM, Stan Vitebsky via USRP-users <
usrp-users at lists.ettus.com> wrote:

> Hello,
> I have a problem  detecting usrp x300 over PCIe ExpressCard interface with
> Lenovo W540
> (it behaves the same way with Ubuntu 13.10 (kernel version 3.11) and with
> Centos 6.5 (modified kernel version 3.10)):
> When the pc boots with NI 8360 card inserted and usrp turned on , the
> output of the "lspci -v" command indicates the presence of of the card like
> so:
> "PCI bridge:PLX Technology Inc. PEX 8505 5-lane 5 port PCI Express Switch
> .......Capabilities: [90] Subsystem: National Instruments Device 8360",
> however it does not show the usrp itself behind the card.
> lspci -k -d 1093:4c4c doesn't return anything. It's the same whether the
> niusrprio drivers are installed or not.
> I have a different PC which successfully detects the same usrp with the
> same expresscard kit with exactly the same versions of Ubuntu 13.10 and
> Centos 6.5,
> In that case, the "lspci -v" command in addition to the above output for
> the PCI Express Switch with the card also outputs:
> "Signal processing controller: National Instruments PXIe/PCIe Device,
> Subsystem: National Instruments Device 7736".
> Has anybody encountered a similar situation and is there any workaround /
> solution in OS or on the USRP side?
> In your opinion, if not Ettus, is this W540 BIOS issue, an NI ExpressCard
> issue or both ?
> My observation is that x3x0 PCI expresscard interface support on different
> host laptop hardware is very unpredictable
> so I would use a lot of caution before committing to this configuration.
> -Stan
> _______________________________________________
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> USRP-users at lists.ettus.com
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