libi2c: Claiming driver slot failed

Chris Johns chrisj at
Fri Aug 9 02:33:31 UTC 2013

Nick Withers wrote:
> On Mon, 2013-08-05 at 14:02 +1000, Nick Withers wrote:
>> Hi guys,
>> When I boot an MVME3100 (PowerPC) off the ticker sample application, I
>> get an error message "libi2c: Claiming driver slot failed (rtems status
>> code 5)".
> (snip)
> I got past this by #defining CONFIGURE_MAXIMUM_DRIVERS up to 10.
> Is this something that I should have to do? Would've thought the BSP
> code'd handle this...?

The BSP may require a number of driver slots while the actual number 
used depends on your application and the drivers it uses. It is useful 
on targets where the memory size is small.

Currently there is no way for the BSP to provide a number for the table 
so the application needs to size things to get it running. If you have 
ideas on how this could be done we would welcome it.


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