This series of patches fixes the pressure values reported for the wacom tablet built-in to a Lenovo ThinkPad Yoga laptop. Prior to this patch series, if I slowly increased stylus pressure, (expecting a gradual increase of values from 0 to 1023), I instead received values that increased slowly to 255, then reset to 0 and increased slowly again, etc. The buggy arithmetic that is updated here appears to exist in identical forms for other drivers. I did not update any code that I was not able to test directly. But it looks like wacom_pl_irq and wacom_dtu_irq potentially have similar bugs, (depending on the actual pressure_max values encountered in practice). -- 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
