hwmon: (pmbus) Add comments explaining internal driver API return values

Return values for functions reading/writing manufacturer specific registers are
poorly explained. Add comments to improve documentation.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Guenter Roeck 2011-08-26 08:01:51 -07:00
commit 20fcfe1721