From 95ffdfe86cb1b8a8e4fff1386a147718400b76e0 Mon Sep 17 00:00:00 2001 From: Guillaume Le Vaillant Date: Sat, 9 May 2020 09:20:17 +0200 Subject: gnu: rtl-sdr: Improve description. * gnu/packages/radio.scm (rtl-sdr)[description]: Add instructions for blacklisting the default rtl28xxu DVB Linux driver. --- gnu/packages/radio.scm | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/gnu/packages/radio.scm b/gnu/packages/radio.scm index a33cd11f0b..2616dbe2e6 100644 --- a/gnu/packages/radio.scm +++ b/gnu/packages/radio.scm @@ -142,6 +142,15 @@ mathematical operations, and much more.") cheap software defined radio, since the chip allows transferring the raw I/Q samples to the host. @code{rtl-sdr} provides drivers for this purpose. +The default Linux driver managing DVB-T dongles as TV devices doesn't work for +SDR purposes and clashes with this package. Therefore you must prevent the +kernel from loading it automatically by adding the following line to your +system configuration: + +@lisp +(kernel-arguments '(\"modprobe.blacklist=dvb_usb_rtl28xxu\")) +@end lisp + To install the rtl-sdr udev rules, you must add this package in the configuration of the udev system service. E.g.: -- cgit v1.2.3