[avrdude-dev] [bug #47780] Single byte read/dump results in zero byte file written [usbtiny]

[Joerg Wunsch]

Update of bug #47780 (project avrdude):

                 Summary: Single byte read/dump results in zero byte file
written => Single byte read/dump results in zero byte file written [usbtiny]

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Follow-up Comment #1:

Thanks for the analysis, Paul!

I just tested it with an AVRISPmkII, and there's no problem. 
My usbtiny's firmware is obviously too old to handle TPI, so 
I cannot test it using it right now.

The routines in avr.c are merely meant to be used as fallback 
routines.  If there are shortcomings with them, the respective 
programmer's implementation would better provide its own 
routine.  I think that would be the correct solution in this 
case (which is apparently what is already happening for the 
AVRISPmkII), as it completely avoids the other issues you 
described for different workarounds inside avr.c.

(I modified the subject to indicate this as an usbtiny problem.)

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