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Peter Hutterer f8fba5b588 Drop hardcoded MAX_SLOTS in favour of pre-allocated memory 
We can't allocate in sync_mt_state since it may be called in the signal
handler. So pre-allocate based on the device's number of slots, store that in
the libevdev struct and use it for the sync process.

This fixes a remaining bug with the handling of ABS_MT_TRACKING_ID. If a
device had > MAX_SLOTS and a slot above that limit would start or stop during
a SYN_DROPPED event, the slot would not be synced, and a subsequent touch in
that slot may double-terminate or double-open a touchpoint in the client.
For the effects of that see

commit 41334b5b40
Author: Peter Hutterer <peter.hutterer@who-t.net>
Date:   Thu Mar 6 11:54:00 2014 +1000

    If the tracking ID changes during SYN_DROPPED, terminate the touch first

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
2014-04-03 13:30:49 +10:00
doc doc: include linux/input.h verbatim in the documentation 2014-03-14 09:38:18 +10:00
include/linux include: update linux/input.h for kernel 3.13 2014-01-22 09:15:14 +10:00
libevdev Drop hardcoded MAX_SLOTS in favour of pre-allocated memory 2014-04-03 13:30:49 +10:00
m4 Review/update .gitignore files 2013-11-19 09:34:23 +10:00
test Drop hardcoded MAX_SLOTS in favour of pre-allocated memory 2014-04-03 13:30:49 +10:00
tools tools: Fix compiler warning 2014-02-26 07:24:46 +10:00
.gitignore Review/update .gitignore files 2013-11-19 09:34:23 +10:00
autogen.sh autogen.sh: remove unneeded m4 configuration workaround 2013-11-19 09:37:06 +10:00
configure.ac libevdev 1.1 2014-03-25 16:20:24 +10:00
COPYING Update COPYING file. 2013-11-15 09:30:10 +10:00
libevdev.pc.in Fix name and version in pkgconfig file 2013-07-24 07:27:17 +10:00
Makefile.am Pass --no-print-directory to make 2013-08-26 07:59:07 +10:00
README.md README: remove the warning, it's stable now 2014-02-11 16:27:50 +10:00

README.md

libevdev - wrapper library for evdev input devices

libevdev is a wrapper library for evdev devices. it moves the common tasks when dealing with evdev devices into a library and provides a library interface to the callers, thus avoiding erroneous ioctls, etc.

git://git.freedesktop.org/git/libevdev http://cgit.freedesktop.org/libevdev/

The eventual goal is that libevdev wraps all ioctls available to evdev devices, thus making direct access unnecessary.

Go here for the API documentation: http://www.freedesktop.org/software/libevdev/doc/latest/

File bugs in the freedesktop.org bugzilla: https://bugs.freedesktop.org/enter_bug.cgi?product=libevdev

Patches, questions and general comments should be submitted to the input-tools@lists.freedesktop.org mailing list: http://lists.freedesktop.org/mailman/listinfo/input-tools