Re: s5h1411_readreg: readreg error (ret == -5)

[Steven Toth <stoth@kernellabs.com>]

hermann pitton wrote:
> [snip]
>> The most undiscovered configurations seem to be such ones about antenna
>> inputs and their switching. Again according to Hartmut, and he did not
>> know exactly what is going on here, some for us and him at this point
>> unknown checksums are used to derive even that information :(
>>
>> For what I can see, and I might be of course still wrong, we can also
>> not determine plain digital tuner types, digital demodulator types of
>> any kind and the type of possibly present second and third tuners, but
>> at least their addresses, regularly shared by multiple chips, become
>> often visible. (some OEMs have only 0xff still for all that)
> 
> forgot, and not any LNB supplies behind some i2c bridges, shared or not
> on whatever.

The use of Hauppauge eeproms I consider advisory at best. Yes, they have 
reasonably good fields to identify tuners, IR but a number of recent silicon 
additions (last 3 years) to the product line is not fully implemented in the 
eeproms. Some of the important feature decisions is done purely in software 
based on sub id for example.

In general I agree with Hermann's comments, that is,  where possible making 
maximum use of the eeprom.

-- 
Steven Toth - Kernel Labs
http://www.kernellabs.com