Messages in this thread | | | Date | Wed, 30 Aug 2017 11:06:59 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v5 1/2] platform: Add driver for RAVE Supervisory Processor |
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On Mon 2017-08-28 09:23:10, Andrey Smirnov wrote: > On Thu, Aug 24, 2017 at 9:04 AM, Pavel Machek <pavel@ucw.cz> wrote: > > On Fri 2017-07-28 07:27:03, Andrey Smirnov wrote: > >> Add a driver for RAVE Supervisory Processor, an MCU implementing > >> varoius bits of housekeeping functionality (watchdoging, backlight > >> control, LED control, etc) on RAVE family of products by Zodiac > >> Inflight Innovations. > >> > >> This driver implementes core MFD/serdev device as well as > >> communication subroutines necessary for commanding the device. > > > > This introduces new /sysfs userland interfaces, right? That needs documenting, > > and some review. > > > > Correct and yes, good point. I was originally asked to implement all > of the exposed attributes via sysfs, but, after more discussion, I now > have green light to move a large chunk of those into debugfs which is > what I intend to do in v6, I'll also update it to document all of the > remaining sysfs entries.
Ok, we still would like to have documentation. .. and debugfs is for debugging, not for production use.
> > For example... bootreason is there on Nokia N900, too. We want to use same interface... > > > > I tried grepping Documentation/ABI and kernel tree in general for that > sysfs interface, but wasn't able to find it. If you don't mind, could > you point me to where it's implemented?
I'm not sure if the implementation is in the mainline, but the bootloader provides this functionality. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [unhandled content-type:application/pgp-signature] | |