[Hackrf-dev] "HackRF One not found" occurs always

[David Maynor]

Im having the same problem. You installed from package? I removed the package and am currently building from the git repo to see if that clears it up.

From: Mehdi Asgari <mehdi.qbic at gmail.com<mailto:mehdi.qbic at gmail.com>>
Date: Wednesday, September 17, 2014 at 10:29 AM
To: "hackrf-dev at greatscottgadgets.com<mailto:hackrf-dev at greatscottgadgets.com>" <hackrf-dev at greatscottgadgets.com<mailto:hackrf-dev at greatscottgadgets.com>>
Subject: [Hackrf-dev] "HackRF One not found" occurs always


Hi

Every time that I execute 'hackrf_info', it gives the error "HACKRF_ERROR_NOT_FOUND (-5)" , but when I execute the command instantly after the first one, it shows my device's info.

Although there is no difference when I run the command via root. I've also read and applied the advices in hackRF's FAQ about this error, but again there is no change.

How can I troubleshoot it to find the cause?

I'm using hackRF One (Board ID number 2, firmware 2014.08.1) on Ubuntu 14.04 (Overall it works fine and for the test, I managed to get a FM station with gqrx, but it always needs me to run every command like 'gqrx' twice, to be able to use the hackRF)

Update: I also tested DFU boot (with the hackrf_one_usb_ram.dfu file), but dfu-util gives me this in the end:

"Device returned transfer size 2048

DFU CRC does not match

Unsupported DFU file revision 0000"

Thanks

Mehdi
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