Rafi Rubin wrote: >> Single touch should be goverened by one of BTN_TOUCH or ABS_PRESSURE. >> BTN_TOOL_DOUBLETAP is a two-finger event. > > That definitely makes sense to me. I really don't know why wacom uses > double tap there. > > Is there any harm in letting through the BTN_0 events? Is the "rdesc" > mapping defined by the hardware or hid? I cannot imagine BTN_0 will do any harm. In synaptics, the BTN_X buttons are mapped to multibuttons without clear-cut usage. The button events that carry well-defined semantic meaning with regard to touch screens are BTN_TOUCH (any finger), BTN_TOOL_FINGER (one finger), BTN_TOOL_PEN (pen), BTN_TOOL_DOUBLETAP (two fingers) and BTN_TOOL_TRIPLETAP (three fingers or more). Henrik -- 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