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The gnuradio block https://github.com/dl1ksv/gr-fcdproplus must be
installed before building gr-osmosdr.
Available named gains:
Dongle Classic:
LNA: -5 to 30 dB, in 2.5 dB steps
MIX: 4 or 12 dB
Dongle Pro+:
LNA: 0 or 1, meaning off/on only. no information about real values.
MIX: 0 or 1, meaning off/on only. no information about real values.
BB: 0 to 59 dB, in 1 dB steps
This patch also introduces optional "device" and "type" arguments which
allow to override the values automatically picked by gr-osmosdr:
osmocom_fft -a "fcd,device=hw:2,type=2"
The "device" argument overrides the audio device used by the underlying
driver to access the dongle's IQ sample stream.
The "type" argument selects the dongle type, 1 for Classic, 2 for Pro+.
Thanks to Alexey Bazhin for the initial patch and Volker Schroer for
testing.
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- the namespace conversion adopts the common gnuradio coding guidelines
- suffix removal is a preparation to support 8/16 bit complex data types
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This API allows to acquire a list of devices connected to the host and
creates an argument string ready to be passed to a source object for
cunstruction.
Each device_t entry contains a "label" entry, which holds the generic
device name which may be shown to the user for device selection.
For certain radio hardware extended entries ("name", "serial", "type")
may be available to make bijective device addressing possible.
The argument string for target types "rtl_tcp" and "file" might be
constructed using the osmosdr::device_t class facilities.
Example:
#include <osmosdr_device.h>
#include <osmosdr_source_c.h>
osmosdr::devices_t devs = osmosdr::device::find();
BOOST_FOREACH(osmosdr::device_t &dev, devs) // try to create each dev
osmosdr_source_c_sptr src = osmosdr_make_source_c(dev.to_string());
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this may be required for compilation since the gnuradio trunk doesn't
provide UHD's include path via pkg-config.
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