Hello,
When doing a setFrequency I usually have this error afterwards and the frequency is actually not changed
rtlsdr_demod_write_reg failed with -9 r82xx_write: i2c wr failed=-9 reg=17 len=1 r82xx_set_freq: failed=-9
By searching around I found this commit that makes the trick for me. https://github.com/keenerd/rtl-sdr/commit/ 9ed9ffa37e24f3293fa960cfcd74909ac3e9996c
This will actually really set the frequency and remove the last 2 errors related to "r82xx". The only error remaining is then
rtlsdr_demod_write_reg failed with -9
If you can include that upstream that would be nice. I created a pull request here : https://github.com/steve-m/librtlsdr/pull/56
Actually the commit is part of a large PR that you may be interested in ? https://github.com/keenerd/rtl-sdr/pull/8
Regards,