dev/usb/uatp.c

64  * computes a weighted average over all possible positions, weighted by
65  * the pressure at that position.  The weighted average is computed in
70  * computes a weighted average of the old raw position, the old
1787 	unsigned int weighted[UATP_MAX_SENSORS];
1809 	 * . each weighted[j] is at most UATP_MAX_SENSORS^2 * UATP_MAX_ACC,
1811 	 * . each weighted[j] * ratio is at most
1831 	 * threshold.  Compute the finger's position as the weighted
1832 	 * average of positions, weighted by the pressure at that
1837 	memset(weighted, 0, sizeof(weighted));
1892 		weighted[n_fingers - 1] += (i * v);
1895 		CHECK_(weighted[n_fingers - 1] <=
1905 		    ("finger at %u\n", ((weighted[i] * ratio) / total[i])));
1906 		sum += ((weighted[i] * ratio) / total[i]);