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path: root/drivers/input/mouse/synaptics_usb.c
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2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152Thomas Gleixner
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-17Input: synaptics_usb - do not rely on input_dev->usersMarcus Folkesson
If the device is unused and suspended, a call to open will cause the device to autoresume through the call to usb_autopm_get_interface(). input_dev->users is already incremented by the input subsystem, therefore this expression will always be evaluated to true: if ((input_dev->users || (synusb->flags & SYNUSB_IO_ALWAYS)) && usb_submit_urb(synusb->urb, GFP_NOIO) < 0) { retval = -EIO; } The same URB will then be fail when resubmitted in synusb_open(). Introduce synusb->is_open to keep track of the state instead. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-03-17Input: synaptics_usb - fix deadlock in autosuspendMarcus Folkesson
usb_autopm_get_interface() that is called in synusb_open() does an autoresume if the device is suspended. input_dev->mutex used in synusb_resume() is in this case already taken by the input subsystem and will cause a deadlock. Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2017-08-07Input: synaptics_usb - constify usb_device_idArvind Yadav
usb_device_id are not supposed to change at runtime. All functions working with usb_device_id provided by <linux/usb.h> work with const usb_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-09-08Input: add missing POINTER / DIRECT properties to a bunch of driversHans de Goede
I've not done a full audit of all mouse drivers, I noticed these ones were missing the POINTER property while working on the POINTING_STICK property. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-09-08Input: add INPUT_PROP_POINTING_STICK propertyHans de Goede
It is useful for userspace to know that there not dealing with a regular mouse but rather with a pointing stick (e.g. a trackpoint) so that userspace can e.g. automatically enable middle button scrollwheel emulation. It is impossible to tell the difference from the evdev info without resorting to putting a list of device / driver names in userspace, this is undesirable. Add a property which allows userspace to see if a device is a pointing stick, and set it on all the pointing stick drivers. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Acked-by: Peter Hutterer <peter.hutterer@who-t.net> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2014-01-06Input: delete non-required instances of include <linux/init.h>Paul Gortmaker
None of these files are actually using any __init type directives and hence don't need to include <linux/init.h>. Most are just a left over from __devinit and __cpuinit removal, or simply due to code getting copied from one driver to the next. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-07-06Input: synaptics_usb - Remove TrackPoint name trailing whitespaceBob Ross
The USB TrackPoint name string contains a space at the trailing end that can cause confusion/difficulty when creating udev rules. Example: "Synaptics Inc. Composite TouchPad / TrackPoint (Stick) " This patch removes the trailing space. Signed-off-by: Bob Ross <pigiron@gmx.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2012-03-16Input: synaptics_usb - switch to module_usb_driver()Dmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-02-03Input: add Synaptics USB device driverJan Steinhoff
This patch adds a driver for Synaptics USB touchpad or pointing stick devices. These USB devices emulate an USB mouse by default, so one can also use the usbhid driver. However, in combination with special user space drivers this kernel driver allows one to customize the behaviour of the device. An extended version of this driver with support for the cPad background display can be found at <http://jan-steinhoff.de/linux/synaptics-usb.html>. Signed-off-by: Jan Steinhoff <mail@jan-steinhoff.de> Acked-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>