Finally (phew!) this patch demonstrates how to adapt the adm1026 to
take advantage of the new callbacks, and the i2c-sysfs.h defined
structure/macros. Most of the other sensor/hwmon drivers could be
updated in the same way. The odd few exceptions (bmcsensors for
example) however might be better off with their own custom attribute
structure.

Again I'd prefer someone test this particular patch before it be
applied, because I haven't got an adm1026 to test it with :-).

Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>

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