[lm-sensors] [PATCH] hwmon/lm78 and w83781d: Probe fewer I2C addresses

[Jean Delvare]

Hi Uwe,

On Tue, 9 Oct 2007 16:59:10 +0200, Uwe Hermann wrote:
> On Sun, Oct 07, 2007 at 12:25:46PM +0200, Jean Delvare wrote:
> > We've never seen any device supported by the lm78 or w83781d driver
> > at addresses 0x20-0x27, so let's stop probing these addresses. Extra
> > probes cost time, and have potential for confusing or misdetecting
> > other I2C devices.
> 
> If the addresses are _theoretically_ possible (as per datasheet)
> wouldn't it be good to have an option to override this?

Virtually _all_ addresses are possible, as the I2C address can be
changed just by writing the new address to a register. So we don't want
to probe all possible addresses.

> Something like scanall=1 or similar? Or maybe that option already exists?

We already have the "probe" parameter, through which a user can ask the
driver to probe additional arbitrary addresses.

-- 
Jean Delvare