fl2k_* have libusb: error [op_dev_mem_alloc] alloc dev mem failed errno 12

Ignatius Rivaldi minecraft2048 at gmail.com
Tue May 1 05:16:28 UTC 2018


Hi,
I've compiled osmo-fl2k with libusb-1.0.22-1 and this happens when I
tried to start fl2k_test:

feanor at silmaril ~> fl2k_test -s 162e6
Using 6 zero-copy buffers
libusb: error [op_dev_mem_alloc] alloc dev mem failed errno 12
Failed to allocate zero-copy buffer for transfer 4
Reporting PPM error measurement every 10 seconds...
Press ^C after a few minutes.
real sample rate: 15372775 current PPM: -905106 cumulative PPM: -905106

then when I try to connect red and ground output to oscilloscope,
there is no output at all, even if I use fl2k_fm


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