On Sat, Mar 20, 2021 at 06:26:24PM +0000, Jonathan Cameron wrote: > On Fri, 19 Mar 2021 20:52:34 -0700 > Drew Fustini <drew@xxxxxxxxxxxxxxx> wrote: > > > I have a board with a TI ADS7066 8-channel ADC [1] that I want to get > > working in Linux. I see there is already driver support in iio for > > ADS1015, ADS79xx, ADS8344, ADS868x and ADS124S0x. > > > > Is anyone already working with the ADS7066 or a similar part in that > > series? > > > > If not, I'll take one of the existing TI drivers as a template for the > > ADS7066 driver. > > > > Thank you, > > Drew > > Hi Drew, > > I've not seen anything for this part. > > From a 10 second glance at the data sheet I see it's capable of > ADC / GPIO on each pin. If you plan to support that functionality > at somepoint make sure to define dt bindings and similar to specify > which channels are enabled and dynamically create the iio_chan_spec > array to match. It can be a bit ugly to retrofit later. Thanks for the feedback. The GPIO functionality is not used on the custom hardware that I have, so I am thinking I would only implement the ADC functionality. Is that too short sighted? > Oh. It does daisy chaining as well. That is always fun to support > though I guess you may well not have it wired up to do that. > Oversampling as well - though that looks nice and simple for once. The hardware I have has two ADS7066 wired up in parallel so I don't think I would be looking at implementing dasiy chain initially. Is that ok just implement what I am actually using or is the preference to have a driver implement all the latent functionality before it would be merged? Thanks, Drew
