I want to write ca. 25 bytes as user data (my FTDI chips are FT2232,
FT4232 and FTX). What is my strategy to calculate the user_data_addr?
If I set EEPROM defaults via ftdi_eeprom_initdefaults() providing only
the product string. Then I perform ftdi_eeprom_build() and use its
return value to calculate the user_data_addr like: eeprom->size -
user_area_size
But this doesn't work as with 128 byte EEPROM (FT2232/4232), the
free_end is 26 and thus I get:
"Warning, user data overlaps the strings area!"
How should EEWriteUserArea() look like in libftdi1?
And what about returning an error instead of printing a warning when
the user data overlaps with the strings or generated data?
Regards,
Yegor
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