On Wed, Sep 28, 2011 at 08:52:30PM +0000, Tabi Timur-B04825 wrote: > On Tue, Sep 27, 2011 at 1:29 PM, Grant Likely <grant.lik...@secretlab.ca> > wrote: > > > The solution is to make the gpio driver register as a regular > > interrupt handler, and not as a chained handler. > > I was wondering about that. > > What exactly is a chained handler? How is it different from a regular > handler?
A chained handler has an expedited path through the interrupt code for handling it (basically, it skips handling it at the parent controller and passes through to the child, but it cannot handle multiple chained children on a single irq input. g. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
