Hi Sir You can assign some adapter nums for certain adapter driver. Put this options to/etc/modprobe.d/dvb.conf options saa716x_core adapter_nr=0,1,2,3 options tbsecp3 adapter_nr= So saa716x-based 6984 always attached as adapter 0,1,2,3. Other FPGA-based cards 4,5,6,7...... after create the file do ...