* i2c-tools userspace tools
@ 2016-04-14 21:55 Svein Seldal
0 siblings, 0 replies; only message in thread
From: Svein Seldal @ 2016-04-14 21:55 UTC (permalink / raw)
To: linux-i2c
Hi
Is this the right list to discuss the i2c-tools user space software? If
not, please disregard this email.
I have noticed that I can't seem to be able to use these tools out of
box for very many i2c devices, as the i2cget/i2cset isn't using a very
common protocol that these chips use.
E.g. the protocol for byte/word read (which is also found in the SMBUS
spec) is:
START - WR:SLAVE - DADR - START - RD:SLAVE - DATA - STOP
From what I have tested, it seems "i2cget BUS SLAVE DADR" does the
following
START - WR:SLAVE - DADR - START - RD:SLAVE - DADR - DATA - STOP
It contains an extra read DADR byte, which is the slot where the actual
data is being returned.
(My workaround is to run "i2cset BUS SLAVE CMD; i2cget BUS SLAVE")
Is this something that patches will be accepted for?
Best regards,
sveinse
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