I suggest adding a comment that these usages are tentative or at least not yet mentioned in the official docs: http://www.usb.org/developers/hidpage#HID_Usage Anyway, very cool that you figured out all those fields. I haven't even seen any of those codes in the 50's. Rafi > + {0, 0x47, "Confidence"}, > + {0, 0x48, "Width"}, > + {0, 0x49, "Height"}, > + {0, 0x51, "ContactID"}, > + {0, 0x52, "InputMode"}, > + {0, 0x53, "DeviceIndex"}, > + {0, 0x54, "ContactCount"}, > + {0, 0x55, "ContactMaximumNumber"}, > +#define HID_DG_CONFIDENCE 0x000d0047 > +#define HID_DG_WIDTH 0x000d0048 > +#define HID_DG_HEIGHT 0x000d0049 > +#define HID_DG_CONTACTID 0x000d0051 > +#define HID_DG_INPUTMODE 0x000d0052 > +#define HID_DG_DEVICEINDEX 0x000d0053 > +#define HID_DG_CONTACTCOUNT 0x000d0054 > +#define HID_DG_CONTACTMAX 0x000d0055 -- 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