Notes to get RSP1 working on Linux and macOS using FOSS drivers (2025)
Please use a mainstream Linux distribution like Ubuntu 24.04 LTS (or later) or the latest Raspberry Pi OS.
Using a Raspberry Pi is NOT recommended as it has quite a bit of power supply noise on the USB ports, which reduces the performance of the connected SDR.
On Linux, add the following lines to the /etc/modprobe.d/blacklist.conf file
blacklist sdr_msi3101
blacklist msi001
blacklist msi2500
Execute the following command:
sudo systemctl restart systemd-modules-load.service
Install dependencies:
sudo apt-get install libsoapysdr0.8-dev libsoapysdr0.8 libsoapysdr-dev \
soapysdr-tools build-essential sox cmake libusb-1.0-0-dev -y
NB: Do NOT install the official SDRplay crappy software.
Remove the problematic mirisdr stuff:
sudo dpkg -r soapysdr0.8-module-mirisdr soapysdr0.8-module-all \
soapysdr0.8-module-mirisdr:amd64
Install the FOSS driver and the interface layer:
mkdir -p ~/repos
cd ~/repos
git clone https://github.com/ericek111/libmirisdr-5.git
cd libmirisdr-5 && cmake . && make -j4 && sudo make install
sudo mkdir -p /usr/local/lib/SoapySDR/modules0.8
sudo cp libmirisdr.so* /usr/local/lib/SoapySDR/modules0.8
cd ~/repos
git clone https://github.com/ericek111/SoapyMiri.git
cd SoapyMiri && cmake . && make -j4 && sudo make install
Set up permissions:
$ lsusb | grep SDR
Bus 001 Device 002: ID 1df7:2500 SDRplay RSP1
$ sudo cat /etc/udev/rules.d/66-mirics.rules
SUBSYSTEM=="usb",ENV{DEVTYPE}=="usb_device",ATTRS{idVendor}=="1df7", \
ATTRS{idProduct}=="2500", MODE="666", GROUP="plugdev", ENV{MTP_NO_PROBE}="1"
udevadm control --reload-rules && udevadm trigger
(Re)-connect the RSP1 SDR to the computer, and then execute the following command:
SoapySDRUtil --probe
See if the SDR is visible now.
You are done! You can run Gqrx SDR and it should see the RSP1 SDR now.
macOS Sequoia
Execute the following steps:
brew install soapysdr
mkdir -p ~/repos
cd ~/repos
git clone https://github.com/ericek111/libmirisdr-5.git
cd libmirisdr-5 && cmake . && make -j4 && sudo make install
sudo mkdir -p /opt/homebrew/lib/SoapySDR/modules0.8
sudo cp libmirisdr.4.* /opt/homebrew/lib/SoapySDR/modules0.8
cd ~/repos
git clone https://github.com/ericek111/SoapyMiri.git
cd SoapyMiri && cmake . && make -j4 && sudo make install
Usage
SoapySDRUtil --probe
./miri_fm -e 2 -g 7 -f 28074000 -M usb \
-w 8000000 | play -t raw -r24k -es -b 16 -c 1 -V1 - lowpass 3k
On macOS (at least), the -e 2 helps a lot with USB stability! With -e 2 things are working smoothly in Jan-2025 on macOS and Linux!