tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

tree-wide: use xsprintf() where applicable Also add a coccinelle receipt to help with such transitions.

udev: Fix touch screen detection Use BTN_TOUCH or INPUT_PROP_DIRECT to detect touch screens. Signed-off-by: Andreas Pokorny <andreas.pokorny@canonical.com>

udev: add emacs header line Otherwise emacs wants to use 2-space indentation and other attrocities.

util-lib: split out fd-related operations into fd-util.[ch] There are more than enough to deserve their own .c file, hence move them over.

util-lib: split our string related calls from util.[ch] into its own file string-util.[ch] There are more than enough calls doing string manipulations to deserve its own files, hence do something about it. This patch also sorts the #include blocks of all files that needed to be updated, according to the sorting suggestions from CODING_STYLE. Since pretty much every file needs our string manipulation functions this effectively means that most files have sorted #include blocks now. Also touches a few unrelated include files.

udev: input_id - use ABS_MT_SLOT{-1} to exclude non touch screen devices Peek at the ABS_MT_SLOT-1 axis. Expect that touch screens only have axes inside the MT range.

udev: input_id - use direct property and mt axis for touch screen detection A lot of touch screens use INPUT_PROP_DIRECT to indicate that touch input maps directly to the underlying screen, while the BTN_TOUCH bit might not be set.

udev: input_id - refactor device detection This change switches to bools and separates bit flag evaluation from decision making and application of udev properties, while hopefully keeping the same semantics. Apart from using BTN_LEFT instead of BTN_MOUSE for mouse detection.

udev: add some asserts Mostly for documentation purposes.

input_id: Identify scroll-wheel device on Trust TB7300 tablet as keyboard The Trust TB7300 (relabelled Waltop?) tablet has a scrollwheel which shows up as a /dev/input/event# node all by itself. Currently input_id does not set any ID_INPUT_FOO attr on this causing it it to not be recognized by Xorg / libinput. This commit fixes this by marking it with ID_INPUT_KEY. Reported-by: Sjoerd Timmer <themba@randomdata.nl>

udev: input_id: Make test_pointer / test_keys return if they've found anything Make test_pointer / test_keys return a boolean indicating whether or not they've set any properties on the device.

udev: input_id: whitespace fixes Remove whitespaces before opening parentheses, mostly before test_bit.

udev: input_id: tag accelerometers as ID_INPUT_ACCELEROMETER input_id already (tries to) tag accelerometers as such, but this only works for absolute accelerometers. Recent kernels mark accelerometers through an input prop. Trust that prop and always tag devices with it with ID_INPUT_ACCELEROMETER. Note that detection by the prop bit works the same as the existing detection and will ensure that no other tags get set on the device.

udev: input_id: tag pointing sticks as ID_INPUT_POINTINGSTICK Also referred to as trackpoint, trackstick. These are marked by recent kernels through an input prop. Forward that prop as udev property so userspace can easily determine whether there is a pointing stick present. These devices were previously marked as ID_INPUT_MOUSE, for backwards compatibility we keep that in place, the new property is an addition.

Assorted format fixes Types used for pids and uids in various interfaces are unpredictable. Too bad.

udev: merge evdev_id into input_id There is no reason to keep both separated. We want to avoid API specific tools and instead keep generic terms like 'input'.

udev: fix NULL-ptr deref Make sure we properly validate the return value of udev_device_get_sysattr_value(). It might be NULL for several reasons.

udevadm,..: make --help output of udev tools more like the output of the various other tools

udev: place opening { at the same line as the function declaration

input_id: Recognize buttonless joystick types Input devices like rudders or pedals are joystick-like; they don't have buttons, but axes like RX, THROTTLE, or RUDDER. These don't interfere with other device types with absolute axes (touch screens, touchpads, and accelerometers), so it's fairly safe to mark them as ID_INPUT_JOYSTICK and thus hand out dynamic ACLs to the user. https://bugs.freedesktop.org/show_bug.cgi?id=70734

macro: introduce a nice macro for disabling -Wformat-nonliteral temporarily

use memzero(foo, length); for all memset(foo, 0, length); calls In trying to track down a stupid linker bug, I noticed a bunch of memset() calls that should be using memzero() to make it more "obvious" that the options are correct (i.e. 0 is not the length, but the data to set). So fix up all current calls to memset(foo, 0, length) to memzero(foo, length).

log: log_error() and friends add a newline after each line anyway, so avoid including it in the log strings

use the same email address everywhere

udev: silent gcc warnings

udev: fix gcc warnings showing up after adding $(AM_CFLAGS)

udev: switch to systemd logging functions

move imported udev into place