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-   -   Access I2C from x86 board (https://www.linuxquestions.org/questions/linux-embedded-and-single-board-computer-78/access-i2c-from-x86-board-864661/)

zvivered 02-23-2011 09:49 PM
Access I2C from x86 board
 
Hello,

I have to learn how the south bridge in a Core2Duo board (com express) access I2C. The board has SMBus I/O from Intel's ICH8M.

Should I use "/drivers/i2c/busses/i2c-i801.c" for this purpose ?

If I understand correctly, this is the low level driver that writes data to the SMBus.

Thanks,
Zvika.

nini09 03-02-2011 02:13 PM
Based on the document, you can try the driver. It should be OK.

zvivered 03-02-2011 11:38 PM
I2C vs. SMBus driver
 
Quote:
Originally Posted by nini09 (Post 4276776)
Based on the document, you can try the driver. It should be OK.
Hello,

Can you tell what driver should be used if the EEPROM is connected via I2C channel (and not SMBus) ?

Thanks,
Zvika.

nini09 03-03-2011 02:25 PM
You still can try same driver because in general, the I2C bus and SMBus are compatible. But there are some subtle differences between the two that could cause some problems.


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