On 11/15/10 08:20, Mark Arrasmith wrote:
> I'm trying to figure out a high wakeup problem with a Palm Pre.  The board is 
> a TI OMAP 3430 board and using powertop I'm seeing a rather high number of 
> interrupts on two I2C channels.  My problem is more of a request for 
> direction on where to look to debug this.  Because the high interrupts seem 
> to be keeping the system from being able to sleep.  Also, I've read the same 
> 'bug' on google android lists for phones that have the same board.
>
> TI documentation lists two I2C connections on this board ( to connect to a 
> GPS and to connect to a TWL5030 power board ), but powertop shows 3 I2C 
> connections.
>
> Question: What tools or documentation lists how to use /sys/ and /proc/ to 
> figure out what Linux sees on each i2c bus?


basically the kernel is the documentation, check out /Documentation/ 
inside the kernel sources for starters, but you might have to look at 
the i2c / driver source code itself if there is none.

Auke

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