On Mon, 9 Sep 2019 15:16:04 +0300 Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx> wrote: > Hi, > > Here's a simple RFC for Intel's Quadrature Encoder. Let me make it clear > that I don't mean we should the following patch as is, rather I'd like > to open the discussion to, perhaps, extending Industrial Automation > Framework with support for Quadrature Encoders. > > Let me know if you think IIO would be correct place for such devices, > then I can start reworking the driver to provide an IIO-compliant > interface. > > I'm thinking we would need standard sysfs files for configuring the QEP > into single-shot QEP mode or buffered Capture mode, configure thresholds > and other details. Hi Felipe, Fairly recently, similar concerns that IIO didn't really suite these devices lead William to create a specific 'counters' subsystem. +CC William. It may not address all of your requirements yet, but I would imagine it is a better fit than IIO would ever be. We have moved all the older counter drivers out of IIO and across to this new subsystem. Thanks, Jonathan > > Cheers > > Felipe Balbi (1): > misc: introduce intel QEP > > drivers/misc/Kconfig | 7 + > drivers/misc/Makefile | 1 + > drivers/misc/intel-qep.c | 813 +++++++++++++++++++++++++++++++++++++++ > 3 files changed, 821 insertions(+) > create mode 100644 drivers/misc/intel-qep.c >
