works perfectly with my TBS 8 Tuner card and a unprivileged container
dev0: /dev/dvb/adapter0/demux0,gid=44,uid=0
dev1: /dev/dvb/adapter0/dvr0,gid=44,uid=0
dev2: /dev/dvb/adapter0/frontend0,gid=44,uid=0
dev3: /dev/dvb/adapter0/net0,gid=44,uid=0
dev4: /dev/dvb/adapter1/demux0,gid=44,uid=0
dev5...