[avrdude-dev] [bug #22248] Read efuse error

[Joerg Wunsch]

Follow-up Comment #2, bug #22248 (project avrdude):

I implemented a partial fix, by unifying the behaviour between
different AVRs.  Thus, for the following devices, the efuse
definition has been changed to no longer mask off bits in
output:

m168, m328, m48, m88, t1634, t26, t261, t461, t861, t88

(For t26, it's actually hfuse rather than efuse.)

Not touching the following historic devices:

2333, 4433, 4434, 8535, m103, m161, m163

For these devices, the fuses are not documented to form a full
byte, and the bit definitions for reading and writing them are
rather obscure.  Thus, avrdude.conf.in better keeps conforming
to what is written in those datasheets.

Not yet done: turning all bits that are marked "x" when
writing into "don't care" when comparing them.

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