Trent Piepho wrote: > I'm still unclear on exactly what the stv0297 requires. The datasheet says > one can't use a repeated start, but must have a stop between a read and a > write. That's simple enough, but has anyone actually verified that the > datasheet is really correct? I know many datasheets provide some > _examples_ of i2c transactions, but it's by no means an exahstive list. > Just because something isn't listed doesn't mean it won't work too. Ack. > Does the stv0297 require that no other i2c traffic, to a different device, > appear between the write and the read? Something like: > > S stv_addr_W A reg_addr A P > S tuner_addr_W A tuner_data1 A tuner_data2 A P > S stv_addr_R A reg_data NA P > > Will the i2c message to the tuner between the two parts of the stv register > reading sequence be a problem? AFAICS no I2C device may assume that two consecutive I2C accesses go to its own device address, or the device is totally broken. CU Oliver -- ---------------------------------------------------------------- VDR Remote Plugin 0.3.9: http://www.escape-edv.de/endriss/vdr/ ---------------------------------------------------------------- _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
