Some devices provides the actual timestamp (hid_dg_scan_time in win8 ones) computed by the hardware itself. This value is global to the frame and is not specific to the multitouch protocol.
Showing the changes to include/uapi/linux/input.h (1 of 2 files). Show all
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| @@ -851,6 +851,7 @@ struct input_keymap_entry { · 850 unmodified lines | ||
| 851 | 851 | #define MSC_GESTURE 0x02 |
| 852 | 852 | #define MSC_RAW 0x03 |
| 853 | 853 | #define MSC_SCAN 0x04 |
| 854 | +#define MSC_TIMESTAMP 0x05 | |
| 854 | 855 | #define MSC_MAX 0x07 |
| 855 | 856 | #define MSC_CNT (MSC_MAX+1) |
| 856 | 857 | |