[linux-dvb] [PATCH] make the registers of the stv0297 visible for other applications (e.g. i2cdump)

e9hack e9hack at googlemail.com
Wed Jun 6 17:05:23 CEST 2007


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. 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

- Hartmut




More information about the linux-dvb mailing list