[MinnowBoard] I2C bus question

[Hay Nguonly]

Thank You for answering my question!

And, yes, that’s what's I meant ― access I2C bus from kernel driver rather
than userspace.

Hay


On 6/24/15, 9:59 AM, "Darren Hart" <dvhart at linux.intel.com> wrote:

>
>On 6/18/15, 1:53 PM, "Hay Nguonly" <HNguonly at ixiacom.com> wrote:
>>Hi,
>>
>>I¹m look for some help on using I2C adapter in kernel mode.
>>I plan to access I2C bus in kernel mode and wanted to know the adapter
>>number associated to the I2C signal on the Minnow Max board.
>
>What do you mean by "kernel mode" - as in through a device kernel driver
>rather than userspace IOCTL calls?
>
>>
>>There are two I2C buses:
>>
>>I2C (#5)   pin #13 and #15 (Low Speed Expansion ­ top)
>>I2C (#6)   pin #21 and #23 (High Speed Expansion - bottom)
>>
>>Which one should I be using?
>>Is there a reason for using one vs the other?
>
>The buses are equivalent for all intents and purposes. Use the one on the
>port that fits your application best. If you don't require any of the high
>speed signals, the low speed expansion port is more accessible and easier
>to prototype with.
>
>-- 
>Darren Hart
>Intel Open Source Technology Center
>
>
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