Messages in this thread | | | Date | Thu, 4 Sep 2008 10:49:55 +0200 | From | "Francis Moreau" <> | Subject | Re: qestion about I2C_CLASS_HWMON flag |
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On Thu, Sep 4, 2008 at 10:37 AM, Jean Delvare <khali@linux-fr.org> wrote: > Hi Francis, > > On Thu, Sep 4, 2008 at 9:43 AM, Francis Moreau <francis.moro@gmail.com> wrote: >> I'm wondering why does this flag exist ? >> >> Why is a hw monitor device so special so that an I2C bus needs >> a flag to tell the rest of the world that it support it ? > > I don't understand your point. We have I2C_CLASS flags for many I2C > device types (analog TV, digital TV, etc.) I2C_CLASS_HWMON isn't the > exception you describe. Look at <linux/i2c.h> for a list of these flags. >
My question (sorry if that silly) is why do we need these flags at all ?
Can't I2C bus address any kinds of I2C devices ?
What make hwmon devices special so that some I2C adapter can't talk to them ?
Thanks -- Francis
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