On 29/11/15 18:27, Alexander Sverdlin wrote: > Hello Jonathan, > > On 29/11/15 18:19, Jonathan Cameron wrote: >>> High end models (EP9307, EP9312, EP9315) have TS controller, which can operate >>>> in general purpose ADC mode. In this mode these names are just ball names on the >>>> pinout. They are all the same. There is only one issue -- I have not found any >>>> official numbering for these devices, therefore wanted to expose this naming to >>>> user space. Low end devices (EP9301, EP9302) have same hw block where TS mode is >>>> not advertised, and even though the balls/pins are still named as in TS controller, >>>> they are also referred as ADC0-ADC4 in datasheet. But there are only 5 of them, >>>> so we do not know the numbers for other 3 in the bigger devices. >>>> >>>> If this is not the purpose of extend_name, I'll drop them. >> It's not. We've had discussions about either exposing the datasheet names via >> sysfs or perhaps allowing arbitrary labelling but nothing has come of it yet. >> >> Perhaps in this case clear documentation of the mapping is the way to go in >> documentation for the driver. > > Do you think something like Documentation/ABI/testing/sysfs-bus-iio-adc-ep93xx is a right > place? Good question. You could do it there by explicitly documenting how it ties up with the sysfs attributes, but that's a bit messy. I'd put a file in Documentation/iio describing it. > > Regards, > Alexander. > -- > 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 > -- 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
