zerochaos 14/11/04 12:35:24 Added: hackrf-safety.patch Log: add patch to disable pre-amp on hackrf by default, remove old ebuilds to avoid accidental hardware damage (Portage version: 2.2.14/cvs/Linux x86_64, signed Manifest commit with key DD11F94A)
Revision Changes Path 1.1 net-wireless/gr-osmosdr/files/hackrf-safety.patch file : http://sources.gentoo.org/viewvc.cgi/gentoo-x86/net-wireless/gr-osmosdr/files/hackrf-safety.patch?rev=1.1&view=markup plain: http://sources.gentoo.org/viewvc.cgi/gentoo-x86/net-wireless/gr-osmosdr/files/hackrf-safety.patch?rev=1.1&content-type=text/plain Index: hackrf-safety.patch =================================================================== commit 39230788d7f4b0a8d6d3ab32039073ed53e74af6 Author: Dimitri Stolnikov <[email protected]> Date: Tue Oct 21 22:10:40 2014 +0200 hackrf: disable AMP gain stage by default to protect it from damage patch proivided by Paul Connolly diff --git a/lib/hackrf/hackrf_sink_c.cc b/lib/hackrf/hackrf_sink_c.cc index 120b271..3a1e7da 100644 --- a/lib/hackrf/hackrf_sink_c.cc +++ b/lib/hackrf/hackrf_sink_c.cc @@ -213,7 +213,7 @@ hackrf_sink_c::hackrf_sink_c (const std::string &args) set_sample_rate( get_sample_rates().start() ); set_bandwidth( 0 ); - set_gain( 14 ); /* enable AMP gain stage by default */ + set_gain( 0 ); /* disable AMP gain stage by default to protect full sprectrum pre-amp from physical damage */ set_if_gain( 16 ); /* preset to a reasonable default (non-GRC use case) */ diff --git a/lib/hackrf/hackrf_source_c.cc b/lib/hackrf/hackrf_source_c.cc index f647b80..e3b3ea4 100644 --- a/lib/hackrf/hackrf_source_c.cc +++ b/lib/hackrf/hackrf_source_c.cc @@ -168,7 +168,7 @@ hackrf_source_c::hackrf_source_c (const std::string &args) set_sample_rate( get_sample_rates().start() ); set_bandwidth( 0 ); - set_gain( 14 ); /* enable AMP gain stage by default */ + set_gain( 0 ); /* disable AMP gain stage by default to protect full sprectrum pre-amp from physical damage */ set_if_gain( 16 ); /* preset to a reasonable default (non-GRC use case) */
