On Mon, 13 Jun 2022 21:26:34 +0200 Stefan Oltmanns <stefan-oltma...@gmx.net> wrote: > Hello, > > is there any way to use devices exposed as /dev/swradioN by the v4l2 > Linux kernel API with GNURadio directly? > > At the moment there are only two in-tree kernel drivers, one for the > RTL2832U and the other for the Mirics MSi2500. For the RTL2832U > librtlsdr seems to be the better option,b as it offers more features to > control the device, but libmirisdr seems to unmaintained and not stable > (at least for me), support has been removed from OsmoSDR years ago. > I do have such a Dongle and with the kernel driver it seems to work just > fine. > > I also found an out-of-tree driver for CX2388x-based TV cards, so a V4L2 > source block could be very useful. Is there any specific reason, why > such a source block doesn't exist yet? > Or is it just that nobody needed it and therefore no one bothered > writing one?
Not to answer your question about kernel drivers, but the SDRPlay RSP1/1A devices use the Mirics MSi2500 and MSi001 chipset so it may be worth trying out the SDRPlay-2.13.1 binary blob with SoapySDRPlay2 on your device (or possibly the SDRPlay-3.* binary blob with SoapySDRPlay3). They work well for me using the gr-soapy built-in gnuradio block, but I use SDRPlay-branded kit for which the blobs were designed. The gr-osmosdr block will also work with it provided you use gr-osmosdr's soapy backend, and not the native sdrplay backend which is completely broken.
