Messages in this thread | | | Date | Sun, 23 Dec 2012 11:32:39 +0000 | From | Will Deacon <> | Subject | Re: CoreSight framework and drivers |
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On Fri, Dec 21, 2012 at 10:18:28PM +0000, Pratik Patel wrote: > What user interface do you plan to provide for the CTI? Maybe > something consistent with other CoreSight components in sysfs to > allow users to enable, disable, map and unmap ??? > > Please let me know your thoughts.
Rather than have your current approach of dev nodes + sysfs config files for each coresight device, I think it might be better to follow something closer to ftrace and stick per-device directories under debugfs/coresight/. Then you can have a pipe file and some config files in the same directory for each component. You also don't need to do any mapping operations with this (just post-process the stream directly).
It might also be fun to play with file redirection for sources and sinks, but that's probably a bit too invasive.
Will
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