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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 02-23-2011, 09:49 PM   #1
zvivered
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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.
 
Old 03-02-2011, 02:13 PM   #2
nini09
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Based on the document, you can try the driver. It should be OK.
 
Old 03-02-2011, 11:38 PM   #3
zvivered
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I2C vs. SMBus driver

Quote:
Originally Posted by nini09 View Post
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.
 
Old 03-03-2011, 02:25 PM   #4
nini09
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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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