mirror of
https://github.com/rtlsdrblog/rtl-sdr-blog.git
synced 2024-12-26 02:48:31 +01:00
8a26abaf79
This allows (among others) to build rtl-sdr nightly packages for a variety of distributions as part of the network:osmocom:nightly builds
56 lines
1.7 KiB
Plaintext
56 lines
1.7 KiB
Plaintext
rtl-sdr for Debian
|
|
-------------------
|
|
|
|
In the beginning Antti Palosaari noticed that some digital video
|
|
receiver tuners can be turned into a cheap software defined radio.
|
|
|
|
Since there is also support in the Linux kernel to use these devices
|
|
as digital video receivers, by default the hardware will be claimed
|
|
by Linux keernel drivers for that purpose.
|
|
|
|
Having these rtl-sdr packages installed likely means that these
|
|
devices should be available for the alternate software defined
|
|
radio use.
|
|
|
|
The librtlsdr0 package in Debian has configuration files to
|
|
help manage the conflicting uses:
|
|
|
|
1. Blacklists DVB-T kernel modules provided by the Linux kernel
|
|
-------------------------------------------------------------------
|
|
|
|
Config file:
|
|
/etc/modprobe.d/librtlsdr-blacklist.conf
|
|
|
|
contains lines to blacklist dvb_usb_rtl28xxu, e4000 and rtl2832
|
|
kernel modules.
|
|
|
|
Should you wish to use a device via the Linux video receiver software
|
|
while still having the librtlsdr0 package installed you may edit
|
|
this file. (Placing a # at the beginning os a line makes it a comment.)
|
|
|
|
Then unplug/plug the USB stick.
|
|
|
|
Not that if rtl-sdr applications are then run, they will complain about
|
|
failing to open the device. In that case, restore the blacklist and
|
|
unplug/plug the USB stick.
|
|
|
|
If librtlsdr-blacklist.conf does not exist, then rtl-sdr was built
|
|
with the DETACH_KERNEL_DRIVER option.
|
|
|
|
2. Permissions
|
|
--------------
|
|
|
|
Devices are available to users in the plugdev group.
|
|
|
|
The librtlsdr0 package installs these default rules:
|
|
/lib/udev/rules.d/60-librtlsdr0.rules
|
|
|
|
If you have permissions issues, you may override these values
|
|
with your own rules in /etc:
|
|
|
|
/etc/udev/rules.d/60-librtlsdr0.rules
|
|
|
|
After editing udev rules, run as root:
|
|
udevadm control --reload-rules
|
|
|