Messages in this thread | | | Subject | Re: [W1] a driver for DS2405 chip | From | Ben Nizette <> | Date | Wed, 3 Nov 2010 21:54:12 +1100 |
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On 03/11/2010, at 6:53 AM, Maciej Szmigiero wrote:
> W dniu 01.11.2010 13:35, Jonathan Cameron pisze: >> On 10/28/10 21:52, Maciej Szmigiero wrote: >>> [W1] a driver for DS2405 chip >>> >>> This is a driver for DS2405 1-wire single-channel addressable switch / PIO. >>> DS2405 can also work as single-channel binary remote sensor. >> Perhaps handle this as a gpio chip? (be it a fairly limited one) >> To my mind it would make it more generally useful... > > I think the GPIO infrastructure is meant for on-system GPIOs, where 1-wire devices are mostly > used for remote data acquisition.
Nope! The contents of drivers/gpio is split roughly 50/50 between on- and off-chip gpio expanders.
> That's probably why w1_therm (for 1-wire thermometers) is not integrated with HWMON subsystem.
Don't know why this is but kinda sounds like it should be looked at more closely - conceptually 1-W is just another bus like, eg, SPI.
--Ben.
> > Maciej Szmigiero > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
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