e9hack wrote: > Trent Piepho wrote: > > > > 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? > > The tuner may be a problem, because the stv0297 is the gate for the tuner > i2c-bus.
Correct. Since the I2C gate closes after the following stop condition, we have a problem, if another I2C transfer happens between gate open and PLL access: (1) S stv_addr_W A ...open_gate... P (2) S eeprom_addr_W A reg_addr A Sr eeprom_addr_R A reg_data NA P (3) S pll_addr_W A ...pll_data... P will not work because the I2C gate closes after (2)! > Reading from eeprom does work: > > S stv_addr_W A reg_addr A P > S eeprom_addr_W A reg_addr A Sr eeprom_addr_R A reg_data NA P > S stv_addr_R A reg_data NA P Could you please test whether this works: S stv_addr_W A reg_addr A Sr stv_addr_R A reg_data NA P CU Oliver -- ---------------------------------------------------------------- VDR Remote Plugin 0.3.9: http://www.escape-edv.de/endriss/vdr/ ---------------------------------------------------------------- _______________________________________________ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
