On Apr 23, 2015, at 3:32, Игорь Попов <[email protected]> wrote:
> I try to make project with two dongles rtl2832+r820.
>
> In GNU Radio Companion v3.7.6.1-58-g620817ed I made simple project with two
> equal channels containing rtl2832_source block and blocks_ctrlport_probe2.
> And I have an error. The output of programm is:
[...]
> libusb error: unknown return code [-6] (int
> rtl2832::demod::find_device():446) "libusb_claim_interface(devh, 0)"
I'm not familiar with this particular block you're using, but I highly
recommend you use gr-osmosdr's source block instead. It is widely used and
works with rtl-sdr devices, and I can confirm that it handles multiple devices
well.
With gr-osmosdr, you can use the device string to specify two RTL dongles
generically:
osmosdr.source('rtl=0')
osmosdr.source('rtl=1')
or using their EEPROM serials instead, which is useful for consistent
selection. (Note that most dongles come from the factory with a serial number
like '000001', so you'll have to use the rtl_eeprom tool to rewrite them to
unique text of your choice.)
--
Kevin Reid <http://switchb.org/kpreid/>
_______________________________________________
Discuss-gnuradio mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
