Re: [Discuss-gnuradio] Discuss-gnuradio Digest, Vol 165, Issue 24

[Sean Sharkey]

Hi Marcus,

Thank you for this.

Hi Sean,

could you tell us your GNU Radio version?


Best regards,

Marcus

I’m using version 3.7.10 of gunradio.

I get the impression that this bug might have been introduced some time ago. If I understand what I’ve been reading correctly the code for FCD was

initially standalone and some were around version 3.5 gr-fcd was incorporated into gnuradio. I could be wrong.

What seems to have happened is that the  hidmac.c code seems to be trying to set the length of the string to the length of the buffer, rather

than setting the buffer to the length of the device string. 

I assume that from the file in question, hidmac.c, as in gnuradio/gr-fcd/lib/hid/hidmac.c, the bug only effects Mac OS platforms using the FunCube Dongle. Perhaps that why it hasn’t

shown up before.

Any help would be gratefully appreciated.

Kind regards,

Sean.

On 23 Aug 2016, at 17:00, address@hidden wrote:

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Message: 8
Date: Tue, 23 Aug 2016 10:24:52 +0100
From: Sean Sharkey <address@hidden>
To: address@hidden
Subject: [Discuss-gnuradio] Funcube Dongle Broken in GUN Radio?
Message-ID: <address@hidden>
Content-Type: text/plain; charset="utf-8"

Morning Everyone.


I?m having trouble getting the original Funcube Dongle recognised in GNU Radio and GNU Radio Companion.

For example when I run Companion and try to select FCD as the source I get an error saying that the ?Port is not connected.?

My computer recognises the FCD and any number of other programs work just fine so the problem would appear to be isolated to GNU Radio.

The following post from the GQRX group suggests that a bug may have been introduced when the original FCD code was incorporated into GNU Radio about 2 years ago.

Apparently there might be a problem with the hidmac.c file located at gnuradio/gr-fcd/lib/hid/hidmac.c

See this post for details https://github.com/csete/gqrx/issues/358 <https://github.com/csete/gqrx/issues/358>

"range.length is set to the len of buf we got by the caller of our function, instead of the length of the string we got from IOHIDDeviceGetProperty(). range.length
has to be the length of that source string, not that of the destination buffer.?

Might anyone be able to help?

Thank you in advance for any help.



Kind regards,


Sean.



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Message: 9
Date: Tue, 23 Aug 2016 12:43:48 +0200
From: Marcus M?ller <address@hidden>
To: address@hidden
Subject: Re: [Discuss-gnuradio] Funcube Dongle Broken in GUN Radio?
Message-ID: <address@hidden>
Content-Type: text/plain; charset="windows-1252"

Hi Sean,

could you tell us your GNU Radio version?


Best regards,

Marcus