I'm not sure if scanning all the i2c busses is safe. There seems to be a
list of available i2c adapters in
/sys/class/i2c-adapter/
and the names can be shown by:
cat /sys/class/i2c-adapter/*/device/name
I'm not sure if a non-root user can see or access all this.
The potential addresses for the DS2482-800 are 0x18 through 0x1F. Although
it's not hard to specify, I'd like that to be the non-default.
So what do you think of:
--i2c=/dev/i2c-0 # first DS2482 on that i2c master
--i2c=/dev/i2c-0:1D # Specific i2c master and DS2482 slave
--i2c=/dev/i2c-0:all # Every DS2482 on that i2c master
--i2c=all # Every i2c master and DS2482 slave
Paul Alfille
On Wed, Aug 13, 2008 at 7:26 AM, Matthias Urlichs <[EMAIL PROTECTED]>wrote:
> If you want to go all out:
>
> --i2c=/dev/i2c-0:2
>
> for the device on i2c bus zero with address 2.
>
> --i2c=/dev/i2c-1
>
> for the first device on bus 1 that you can find
>
> --i2c=any:2
>
> a device is on address 2, but you don't know which bus
> number
> (bus numbers can change between reboots, so this is not just
> idle
> fanciness)
>
> --i2c=all
>
> scan for, and use, all devices.
>
> Personally, though, I see no need for any but the last option, provided
> that you can reliably identify 1wire adapters -- which I have no
> experience with WRT i2c.
>
-----------
>
> However, I do see a need for signalling owserver that it should re-scan
> the i2c buses for new / missing adapters. (This BTW also applies to USB.)
>
How about a general entry in under interface to "reconnect"
Paul Alfille
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