Re: [PATCH 1/1] [hwmon] nct1008: Initial NCT1008 driver

From: Guenter Roeck
Date: Wed Apr 06 2011 - 03:33:15 EST


Hi Jean,

On Wed, Apr 06, 2011 at 03:23:58AM -0400, Jean Delvare wrote:
> Hi Andrew,
>
[ ... ]
> > +
> > +/* Register Addresses */
> > +#define LOCAL_TEMP_RD 0x00
> > +#define EXT_HI_TEMP_RD 0x01
> > +#define EXT_LO_TEMP_RD 0x10
> > +#define STATUS_RD 0x02
> > +#define CONFIG_RD 0x03
> > +
> > +#define CONFIG_WR 0x09
> > +#define CONV_RATE_WR 0x0A
> > +#define LOCAL_TEMP_HI_LIMIT_WR 0x0B
> > +#define EXT_TEMP_HI_LIMIT_HI_BYTE 0x0D
> > +#define OFFSET_WR 0x11
> > +#define EXT_THERM_LIMIT_WR 0x19
> > +#define LOCAL_THERM_LIMIT_WR 0x20
> > +#define THERM_HYSTERESIS_WR 0x21
>
> These register definitions look very familiar to me. Have you looked at
> the lm90 driver to check has difficult it would be to add support for
> the NCT1008? I bet it will only take a few lines of code.
>
After I spent a couple of hours reviewing the driver, I noticed that the chip is functionally
identical to ADT7461A (the only difference is the package; even the chip ID is the same),
and the ADT7461A is in turn functionally identical to ADT7461. Sigh :(.

Guenter
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