> Date: Sat, 29 Mar 2008 23:09:27 +0100
> From: [EMAIL PROTECTED]
> To: [EMAIL PROTECTED]
> CC: [email protected]
> Subject: Re: [i2c] i2c Questions
>
> On Thu, 27 Mar 2008 21:14:53 +0000, badguy development wrote:
> >
> > Hello,
> >
> > I am creating 2 i2c drivers.
> >
> > I have started a driver for the LTC1760
> > and that one is working and well under way.
> >
> > I have to now develop a driver for bus address 0x01
> > and in the code I have located that to be an invalid address.
> >
> > the code tests for address < 0x03 && address > 0x77
> > then promptly fails with invalid address.
> >
> > I am hoping to find an understanding for this.
> > this is a programmable address, and I will have it changed if I have to.
>
> Please read the I2C specification. Address 0x01 is for CBUS
> compatibility and cannot be used by I2C devices.
>
Thank you for the CBUS tip, that is what lead me to it in the spec.
I guess I will have to continue digging to learn why 0x02 is also disallowed.
> >
> > Also, I have 3 i2c busses on this iMX31 SOM
> >
> > how can I tell my device to only query / operate on a specific bus.
> > do I need to?
>
> The device can only operate on the one bus to which it is connected, so
> I can't see any problem here.
>
I guess I did not use correct terms there.
What I meant to ask was: how can I tell my device driver to only query a
given bus.
but I also guess that is not necessary, and the first bus to respond on that
address will be carrying my device.
> >
> > and finally where should a noobie to this i2c stuff be asking questions
> > like this?
>
> This is the right list. It would be nice if you could post under your
> real name.
>
Thanks, I currently do not have an email that uses my name, its top secret.
but I can place my name at the end of my messages.
is this perhaps why I have not recieved confirmation for joining the list?
am I disallowed without an email revealing a more realistic name?
if that is the case I guess I will have to finally create an email account
using a name :(
> >
> > Please forward any response to this to my email here:
> > [EMAIL PROTECTED]
> >
> > I am trying to join the list, but have not received confirmation yet.
> >
> > Thanks ahead of time for your wealth of knowledge.
>
> --
> Jean Delvare
Christian Hunt
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