On Fri, Jan 28, 2011 at 12:54 PM, Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> wrote: >> >> > so I believe >> >> > min, max and resultion should be reported on ABS_X, Y, X, etc, or, if >> >> > you want to have this data in ABS_MT_POSITION, it should be trhe same. >> >> >> >> max/min is different from resolution. We can scale max/min since they >> >> are logical data. But we can not change the device's physical size. >> >> That's the root cause of the "stubborn" nature of resolution. >> > >> > This is the same device so it should have the same physical dimensions, >> > right? >> >> No, pen and touch use different chips. They can have different sizes. > > It does not matter how many chips you have inside. What matters whether > they share a working surface or not. If working surface is the same (and > consequentially you have single input_dev structure) then dimensions are > the same. They do not always share the exact same surface. Most of the devices do have the same working surface. But not all of them although the differences are normally small. To represent a finger touch, it may not be too big a deal. But, making the assumption that they are the same size doesn't sound right. Do we ignore that small imprecision? Or do I submit a version 2 (I'll update Bamboo resolution with Henrik's scale in the same patch)? Thank you. Ping -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
