[lkml]   [2010]   [Nov]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [W1] a driver for DS2405 chip

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.


> Maciej Szmigiero
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to
> More majordomo info at
> Please read the FAQ at

 \ /
  Last update: 2010-11-03 12:05    [W:0.063 / U:9.120 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site