SMBus fails in a loop for the first couple reads

[kplindegaard]

SMBus fails in a loop for the first couple reads

[kplindegaard]

@wildbiotiger, I've no idea.

But I have come across devices that require a little time to process the last operation you send. For example, if you write/call something that does return a result successfully, the device isn't really ready for the next command right away. Some need time to do a little processing before they can accept a new one. Could that be part of the explanation here, you think? Or that the device need time to power up properly? Or there is some kind of other initialization that's not done right?

[wildbiotiger]

It may be that the script is processing faster than the underlying buffer fills, but I am curious if the operations are somewhat non-blocking. Would make things a little more interesting.

[kplindegaard]

@wildbiotiger It would surprise me if that's the explanation.