Hi All The ZL10353 is a DVB-T demod. It has internal I2C bus for a tuner. If no any device on the second I2C bus switch ZL19353 internal I2C bridge to pass-thru mode kill the main I2C bus. Main I2C bus has state BUSY all time. For solve this problem I set checking no_tuner config of the ZL10353 chip. If no any tuners don't switch ON I2C bridge. Is this solution correct?? May be add new parametr second_bus_empty?? With my best regards, Dmitry. _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb