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:
//////////////////////////////////////////////////////////////////////////////////////////////////////
Generating: "/home/igor/GRC_Projects/rtl_2832_block/top_block.py"
>>> Warning: This flow graph may not have flow control: no audio or RF hardware
>>> blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU
>>> congestion.
Executing: "/home/igor/GRC_Projects/rtl_2832_block/top_block.py"
RTL2832 Source block configuration:
Read length (bytes): 32768
Buffer enabled: yes
Buffer multiplier: 8
Buffer size (samples): 131072
Samples per read: 16384
Buffer level: 50,0%
Successfully initialised demod: "ezcap EzTV"
Skipping auto-probe with custom tuner: "r820t"
Found RTL2832 device: ezcap EzTV (tuner: Rafael Micro R820T)
Sample rate range: 900001 - 3200000 Hz
Crystal frequency: 28800000 Hz
[r820t] Initialised (default bandwidth: 0 Hz)
RTL2832 Source block configuration:
Read length (bytes): 32768
Buffer enabled: yes
Buffer multiplier: 8
Buffer size (samples): 131072
Samples per read: 16384
Buffer level: 50,0%
libusb error: unknown return code [-6] (int rtl2832::demod::find_device():446)
"libusb_claim_interface(devh, 0)"
Traceback (most recent call last):
File "/home/igor/GRC_Projects/rtl_2832_block/top_block.py", line 146, in
<module>
tb = top_block()
File "/home/igor/GRC_Projects/rtl_2832_block/top_block.py", line 105, in
__init__
if self.rtl2832_source_0.create() == False: raise Exception("Failed to
create RTL2832 Source: rtl2832_source_0")
Exception: Failed to create RTL2832 Source: rtl2832_source_0
////////////////////////////////////////////////////////////////////////////////////////////////////
Separatly dongles are working properly. And if I run one project for the one
dongle and one more for the second one all is OK.
Please help me to what direction I have to go.
Thank You. _______________________________________________
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