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Re: [Discuss-gnuradio] FunCube Dongle pro +

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] FunCube Dongle pro +
Date: Fri, 31 Oct 2014 19:04:31 -0400
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16

On 10/31/2014 07:00 PM, Marcus Müller wrote:
The problem is that Ubuntu 12.04 seems to carry 1.0.9 around, so this seems strange.
I'm a bit conflicted -- the missing symbol looks like it should belong to libudev and not libusb-versionhell.
This might indicate that you're bound to update libudev, which is rather system central, and which might be a bit of a hassle; I'd personally recommend updating to Ubuntu 14.04 LTS or the brand new 14.10 [1].
It feels like the module should link against libudev, as it includes libudev.h and uses symbols from that library, but I can't find a single reference to udev in the cmake files of gr-fcdproplus.
this is but a shot in the dark, but could you delete the contents of your build folder, and rund cmake with "-DCMAKE_CXX_FLAGS=-ludev"


[1] https://wiki.ubuntu.com/TrustyTahr/ReleaseNotes#Upgrading_from_Ubuntu_12.04_LTS_or_Ubuntu_13.10
On 10/31/2014 11:41 PM, Marcus D. Leech wrote:
On 10/31/2014 06:27 PM, Daniel Batista wrote:
>This is because the version of the libusb library you have is too old to have that particular API call in it.

I use ubuntu 12.04 and libusb-1.0-0-dev
Do you what version of libusb is compatible?
I think that 1.0.9 and newer are compatible.

Hmm, I wonder why it cares about udev?  When I saw "enumerate" I thought this was a libusb thing, but clearly not.

I thought that FCD devices just "manifested" as audio anyway--no direct libusb required?

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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