On 9/2/19 12:22 PM, Wolfram Sang wrote:
various files has been tested and works fine. One new thing which could
happen now is that for a 16 bit address pointer, only 8 bit get sent
before a repeated start switches to reading data. This can be easily
simulated with the 'i2ctransfer' tool from i2c-utils. TBH, I have no
idea how real EEPROMs react to this situation. Our driver currently uses
the pointer with only 8 bits fed and the upper 8 bits being 0. This
could be valid. Do you have a real EEPROM to check against?
Thinking more about it, I wouldn't bet all EERPOMs out there handle this
case the same way. So likely, our current handling might be good enough.
I have a real EEPROM that I can test against, and I can probably set up
a quick test for that specific device only. But as you say, I have no
idea if this is representative for all EEPROM or not.
I will try to get time to fix all your comments and send in a new patch
later this week.
/BA
