Hi, yeah, this annoying frequency changing, I tested with gqrx as client and your patch definitely helps.
applied. thank you, Sebastian On Tue, Aug 4, 2026 at 12:30 AM SASANO Takayoshi <[email protected]> wrote: > Hi, > > > without and with your patch, I can run rtl_sdr -a 127.0.0.1 and connect > > gqrx to it, to listen to radio. > > So what does the patch fix for you? > > > > Do you have something I could reproduce? > > 1. run "rtl_tcp -a 0.0.0.0" on OpenBSD machine > 2. run Airspy's SDRsharp on Windows machine > 3. connect rtl_tcp server from SDRsharp client and start receive > 4. change frequency on SDRsharp with up/down button (frequency number) > > same problem will occur on CubicSDR with rtl-sdr (this occur > without rtl_tcp server). > > > It looks librtlsdr's radio controlling api like rtlsdr_set_center_freq() > is blocked during rtlsdr_read_sync() is activated. > > (maybe libusb's control transfer is blocked whle bulk transfer is running) > > Regards, > -- > SASANO Takayoshi (JG1UAA) <[email protected]> > -- https://buzzdeee.reitenba.ch
