tree c414962f0047548765778132a3a988d48d7034b5
parent b89529a10c954f14191367355da2a6053c49abb9
author Henrik Rydberg <rydberg@euromail.se> 1328514565 +0100
committer Henrik Rydberg <rydberg@euromail.se> 1328776857 +0100

Input: Add EVIOC mechanism for MT slots

This patch adds the ability to extract MT slot data via a new ioctl,
EVIOCGMTSLOTS. The function returns an array of slot values for the
specified ABS_MT event type.

Example of user space usage:

struct { unsigned code; int values[64]; } req;
req.code = ABS_MT_POSITION_X;
if (ioctl(fd, EVIOCGMTSLOTS(sizeof(req)), &req) < 0)
	return -1;
for (i = 0; i < 64; i++)
	printf("slot %d: %d\n", i, req.values[i]);

Reviewed-by: Chase Douglas <chase.douglas@canonical.com>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>