First usage of Pi 3


I installed the Piaware software to feed ADS-B into FlightAware. At first I had problem with Dongle in use:


Found 1 device(s):

0: Generic RTL2832U

  Using device 0: Generic RTL2832U

  Kernel driver is active, or device is claimed by second instance of librtlsdr.
In the first case, please either detach or blacklist the kernel module
(dvb_usb_rtl28xxu), or enable automatic detaching at compile time.

  usb_claim_interface error -6
Failed to open rtlsdr device #0.


Luckily a solution is pretty straightforward. In /etc/modprobe.d create a file called blacklist.conf with the following:


blacklist dvb_usb_rtl28xxu
blacklist rtl2832
blacklist rtl2830


Apparently the upgrade incorporates a new Linux kernel which includes a DVB driver for the dongle as a TV receiver.  Since the device is already in use by this driver, usage fails by anything else. Next:


sudo reboot


Problem gone. Software works great on Pi 3.