[linux-dvb] MC44S803 frontend (it works)

Jochen Friedrich jochen at scram.de
Sat Jan 10 15:35:10 CET 2009


Hi Antti,

>> Yes. Currently, MC44S803 uses a READ in mc44s80x_get_devid() to check the ID register.
>> According to the spec from freescale, a READ needs to be a seperate I2c transaction,
>> because the STOP bit is used to latch the address registers. That's the reason why a
>> dedicated READ support is needed (most other tuners use a WRITE / READ combined I2c
>> transaction instead).
> 
> OK. Maybe comment to the code is required, but I can add it. I am 
> willing to see, if you have, usb-sniffs for tuner read and write.

there is documentation for this tuner at the freescale web page:

http://www.freescale.com/files/rf_if/doc/data_sheet/MC44S803.pdf?pspll=1



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