Hi, On 10/31/2012 03:27 PM, Denis CIOCCA wrote: > Hi Lars-Peter, > > I'm trying modified the driver to change the fullscale attribute and use > the in_accel_*_scale attribute. > My question is that: > > - the in_accel_*_scale attribute rappresent the conversion value from > raw data sensor to m/s2, if I use only this value, how can I know what > is the maximum full scale associated to the value? Unfortunately there is currently no way in IIO to specify minimum or maximum values for a given channel. But you are welcome to come up with one, I think this will be useful for other drivers as well. > > - how can I view a list of available values? I have to create scale > attribute on sysfs? If the last point is true, it is so redundant what I > did before? You should add a scale_available attribute. Some ADC drivers implement this, you could use them as an example. - Lars > > > Thanks, > > Denis > > > On 10/29/2012 11:30 AM, Lars-Peter Clausen wrote: >> On 10/29/2012 11:24 AM, Denis CIOCCA wrote: >>> >>>> There is no attachment attached to this mail. >>> my was a question. You prefer I attach all source code or the last modified? >>> >>> >>>>> I don't find IIO_G_TO_M_S_2 in the framework code, but I added this >>>>> macro in my source code. It is exatly? >>>> >>>> It's in the latest IIO tree and also in staging/staging-next. The definition is >>>> >>>> +#define IIO_DEGREE_TO_RAD(deg) (((deg) * 314159ULL + 9000000ULL) \ >>>> / 18000000ULL) >>> >>> Sorry but I'm lost. The relation from IIO_DEGREE_TO_RAD and IIO_G_TO_M_S_2? >>> >> >> Sorry, too early in the morning, copied the wrong line. >> >> +#define IIO_G_TO_M_S_2(g) ((g) * 980665ULL / 100000ULL) >> >> Btw. the full patch can be found here: >> http://comments.gmane.org/gmane.linux.kernel.iio/5777 >> >> - Lars >> -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
