AD7944/85/86: Add preliminary support, docs #16
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Signed-off-by: Trevor Gamblin <[email protected]>
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This adds basic support for the AD7944, AD7985, and AD7986 ADCs to PrecisionToolbox.
It is currently in draft format because the driver has not been merged in the upstream Linux kernel yet and will not be present in the ADI tree until after that.
Note that no VoltageOffset() function was added because that hasn't been implemented in the driver.
Also, while the Voltage() function is present in all three classes and was implemented in a fashion identical to other devices (e.g. AD4020), it doesn't seem to work properly with the test environments I've been setting up. rx() and VoltageScale() work fine (the latter only correctly reports the value after rx() is run at least once; otherwise it reports NaN.