add direct_sampling mapping for rtl_sdr

CHANGELOG.md

@@ -14,6 +14,7 @@
 - FiFi SDR: prevent arecord from shutting down after 2GB of data has been sent
 - Added support for bias tee control on rtl_sdr devices
 - All connector driven SDRs now support `"rf_gain": "auto"` to enable AGC
+- `rtl_sdr` type now also supports the `direct_sampling` option
 
 **0.18.0**
 - Support for SoapyRemote

debian/changelog

@@ -18,6 +18,7 @@ openwebrx (0.19.0) UNRELEASED; urgency=low
     sent
   * Added support for bias tee control on rtl_sdr devices
   * All connector driven SDRs now support `"rf_gain": "auto"` to enable AGC
+  * `rtl_sdr` type now also supports the `direct_sampling` option
 
  -- Jakob Ketterl <jakob.ketterl@gmx.de>  Thu, 20 Feb 2020 21:01:00 +0000
 

owrx/source/rtl_sdr.py

@@ -1,14 +1,15 @@
 from .connector import ConnectorSource
-from owrx.command import Flag
+from owrx.command import Flag, Option
 
 
 class RtlSdrSource(ConnectorSource):
     def getCommandMapper(self):
-        return super().getCommandMapper().setBase("rtl_connector").setMappings(
-            {
-                "bias_tee": Flag("-b")
-            }
+        return (
+            super()
+            .getCommandMapper()
+            .setBase("rtl_connector")
+            .setMappings({"bias_tee": Flag("-b"), "direct_sampling": Option("-e")})
         )
 
     def getEventNames(self):
-        return super().getEventNames() + ["bias_tee"]
+        return super().getEventNames() + ["bias_tee", "direct_sampling"]