[Avila] GW2348-4: I2C and EEPROM

[David Acker]

Tamas Selmeci wrote:
> Hello!
> 
> I'd like to access the Atmel 24C08 EEPROM on my GW2348-4 devboard using 
> I2C. Since I've never done I2C in a high-level environment like Linux, I 
> keep on failing communicating with the EEPROM (linux-2.6.25.6).
> 
> Is there any sample code available showing how the EEPROM through I2C is 
> accessible? The only information I've found about this is that write 
> address is 0xA0 and read address is 0xA1.
> 
> I've made something based on the sample in the kernel documentation, but 
> refuses to work.
> 
> Any help appreciated, primarily sample codes or tutorial links!

Gateworks uses the first 64 bytes of the second 256-byte bank for settings.

We use http://codesink.org/eeprog.html .  Make sure to disable the 
kernel access if you use this.  Disable CONFIG_SENSORS_EEPROM in your 
kernel configuration.

-Ack