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path: root/include/linux/uinput.h
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2015-12-19Input: uinput - add new UINPUT_DEV_SETUP and UI_ABS_SETUP ioctlBenjamin Tissoires1-0/+5
This adds two new ioctls, UINPUT_DEV_SETUP and UI_ABS_SETUP, that replaces the old device setup method (by write()'ing "struct uinput_user_dev" to the node). The old method is not easily extendable and requires huge payloads. Furthermore, overloading write() without properly versioned objects is error-prone. Therefore, we introduce two new ioctls to replace the old method. These ioctls support all features of the old method, plus a "resolution" field for absinfo. Furthermore, it's properly forward-compatible to new ABS codes and a growing "struct input_absinfo" structure. UI_ABS_SETUP also allows user-space to skip unknown axes if not set. There is no need to copy the whole array temporarily into the kernel, but instead the caller issues several ioctl where we copy each value manually. Signed-off-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-02-13Input: uinput - add UI_GET_SYSNAME ioctl to retrieve the sysfs pathBenjamin Tissoires1-0/+2
uinput is used in the xorg-integration-tests suite and in the wayland test suite. These automated tests suites create many virtual input devices and then hook something to read these newly created devices. Currently, uinput does not provide the created input device, which means that we rely on an heuristic to guess which input node was created. The problem is that is heuristic is subjected to races between different uinput devices or even with physical devices. Having a way to retrieve the sysfs path allows us to find without any doubts the event node. Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-10-13UAPI: (Scripted) Disintegrate include/linuxDavid Howells1-106/+3
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-08-22Input: uinput - specify exact bit sizes on userspace APIsDmitry Torokhov1-13/+14
Switch to using __u32/__s32 instead of ordinary 'int' in structures forming userspace API. Also internally make request_id unsigned int. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2011-10-13Input: force feedback - potential integer wrap in input_ff_create()Dan Carpenter1-1/+1
The problem here is that max_effects can wrap on 32 bits systems. We'd allocate a smaller amount of data than sizeof(struct ff_device). The call to kcalloc() on the next line would fail but it would write the NULL return outside of the memory we just allocated causing data corruption. The call path is that uinput_setup_device() get ->ff_effects_max from the user and sets the value in the ->private_data struct. From there it is: -> uinput_ioctl_handler() -> uinput_create_device() -> input_ff_create(dev, udev->ff_effects_max); I've also changed ff_effects_max so it's an unsigned int instead of a signed int as a cleanup. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-12-20Input: introduce device propertiesHenrik Rydberg1-0/+1
Today, userspace sets up an input device based on the data it emits. This is not always enough; a tablet and a touchscreen may emit exactly the same data, for instance, but the former should be set up with a pointer whereas the latter does not need to. Recently, a new type of touchpad has emerged where the buttons are under the pad, which changes logic without changing the emitted data. This patch introduces a new ioctl, EVIOCGPROP, which enables user access to a set of device properties useful during setup. The properties are given as a bitmap in the same fashion as the event types, and are also made available via sysfs, uevent and /proc/bus/input/devices. Acked-by: Ping Cheng <pingc@wacom.com> Acked-by: Chase Douglas <chase.douglas@canonical.com> Acked-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
2010-08-21Input: uinput - add devname alias to allow module on-demand loadKay Sievers1-1/+0
Recent modprobe and udev versions allow to create device nodes for modules which are not loaded. Only the first access will cause the in-kernel module loader to pull-in the module. Systems which never access the device node will not needlessly load the module, and no longer need init scripts or other facilities to unconditionally load it. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2010-05-21Input: use ABS_CNT rather than (ABS_MAX + 1)Daniel Mack1-5/+5
Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-10-19get rid of input BIT* duplicate definesJiri Slaby1-4/+0
get rid of input BIT* duplicate defines use newly global defined macros for input layer. Also remove includes of input.h from non-input sources only for BIT macro definiton. Define the macro temporarily in local manner, all those local definitons will be removed further in this patchset (to not break bisecting). BIT macro will be globally defined (1<<x) Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Cc: <dtor@mail.ru> Acked-by: Jiri Kosina <jkosina@suse.cz> Cc: <lenb@kernel.org> Acked-by: Marcel Holtmann <marcel@holtmann.org> Cc: <perex@suse.cz> Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: <vernux@us.ibm.com> Cc: <malattia@linux.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-03Input: pull input.h into uinpit.hMike Frysinger1-0/+2
uinput.h relies on structures found in input.h, so pull in the header Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-19Input: uinput - switch to the new FF interfaceAnssi Hannula1-12/+23
The userspace interface of the force feedback part is changed and documentation in uinput.h is updated accordingly. MODULE_VERSION is also incremented to reflect the revision. Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-02-19Input: uinput - semaphore to mutex conversionDmitry Torokhov1-2/+2
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-11-20Input: uinput - add UI_SET_SWBIT ioctlDmitry Torokhov1-0/+1
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-11-20Input: uinput - convert to dynalloc allocationDmitry Torokhov1-6/+6
Also introduce proper locking when creating/deleting device. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-06-30Input: uinput - use completions instead of events and manualDmitry Torokhov1-3/+2
wakeups in force feedback code. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2005-04-17Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds1-0/+167
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!