[lm-sensors] Add an ADC with I2C interface on ARM

Jean Delvare khali at linux-fr.org
Fri Jul 2 11:57:34 CEST 2010


Salut Tony,

On Fri, 2 Jul 2010 11:39:49 +0200, Tony Mozi wrote:
> Hi all,
> I try to enable the communication between an ADC (ADS7823) and a board with an ARM chip.
> 
> In /dev, I have i2c-0,... i2c-3. So, I suppose that it is not necessary to add another.

To add another what?

> The board has already an internal ADC and I communicate with it without problem.
> When I start my program, there is no activity on SCL and SDA.
> I use a loop when I write on the I2C bus but I see nothing.
> Regarding the electronic part, it's ok, supply enables.
> Have you got ideas?

It's fundamentally an I2C question, so off-topic on this list. Try the
linux-i2c list and you'll stand a better chance to get a useful reply.

-- 
Jean Delvare




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