On Mon, Mar 14, 2011 at 05:42:44PM -0400, Jean Delvare wrote: > On Mon, 14 Mar 2011 21:36:43 +0100, Arnd Bergmann wrote: > > On Monday 14 March 2011 21:18:09 Jean Delvare wrote: > > > Jonathan is correct. Pressure sensors are not hardware monitoring > > > devices, their drivers have nothing to do in drivers/hwmon. This is > > > something for drivers/misc or staging/iio. > > > > I generally try to prevent people from adding more ad-hoc interfaces > > to drivers/misc. Anything that is called a drivers/misc driver to me > > must qualify as "there can't possibly be a second driver with the > > same semantics", otherwise it should be part of another subsystem > > with clear rules, or be put into its own file system. > > I see drivers/misc differently. I see it as "not enough drivers of the > same type to justify a new subsystem". So I encourage people to put > things there in the absence of any suitable subsystem, until someone > gets enough motivation to start such a subsystem. This is more > pragmatic than requesting subsystems to be created upfront. > Agreed. Note that there is already a pressure sensor in drivers/misc - bmp085.c. That chip also includes a temperature sensor. > That being said, staging is another option nowadays. > > > While it seems that right now everyone is just trying to keep move > > the driver to some other subsystem, I think it's worth noting that > > it is indeed a useful thing to have the driver, I'm optimistic > > that we can find some place for it. ;-) > > > > Now how about the IIO stuff? This is the first time I've even > > heard about it. Does it have any major disadvantages besides > > being staging-quality? > > This is indeed the major disadvantage. IIO seems to take a lot of time > to move out of staging, although I don't know what the current ETA is. > In general it would be nice to have a "sensors" subsystem. iio is going into that direction, so creating another one might not make much sense at this point. Guenter -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
