Todd, Yes the polling is not such a problem because 2% is not that much. Probably that the bitbang will be more than that it's why I would like to avoid it. If there is a hardware mod to correct NACK problem I'll be glad to apply it.
Thanks, Nicolas On Thu, Jul 29, 2010 at 7:43 AM, Todd Fischer <[email protected]>wrote: > Nicolas, > > Also, due to another hardware limitation, the touch screen driver using > polling instead of interrupts. I heard a hardware change that will allow > for interrupts to be used is planned as well. The polling overhead costs > around 2% ARM CPU. > > Todd > > > On Thu, 2010-07-29 at 10:42 +0530, Nori, Sekhar wrote: > > Hi Nicolas, > > On Thu, Jul 29, 2010 at 02:16:16, Nicolas Luna wrote: > > Todd, > > > > What do I need to change if I want to use the bitbang i2c driver and > > stop to get those error messages. > > You can try the patch here: > http://arago-project.org/git/projects/?p=linux-omapl1.git;a=commit;h=7d8accda275fdbe6e727e7ac02ae5a92f5695326 > > This issue should be fixed in future revisions of Logic EVMs so this patch > wont be needed afterward. > > Thanks, > Sekhar > >
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