From: Henrik Rydberg <rydberg@euromail.se>
Date: Mon, 6 Feb 2012 07:49:25 +0000 (+0100)
Subject: Input: Add EVIOC mechanism for MT slots
X-Git-Tag: v3.4-rc1~130^2^2~11^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cf0c6e69e396538615153056605aaafab11935a;p=pandora-kernel.git

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>
---

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