When a USB device reset occurs, usbcore will refetch the device and configuration
descriptors and compare them with those retrieved before the reset to ensure
that they have not changed. For USB HID devices, this implicitly includes the
HID class descriptor (as this is fetched with the configuration descriptor).
However, the HID report descriptor is not checked again.

Whilst a change in the size of the HID report descriptor will be detected (as
this is held in the class descriptor), content changes to the report descriptor
which do not result in a change in its size will be missed. If a firmware update
were applied to a USB HID device which resulted in such a change to the report
descriptor after device reset, then this would not be picked up by usbhid.

This patch fixes this issue by allowing usbhid to check the contents of the
report descriptor after the device reset, and trigger a rebind of the device
if there is a mismatch.
Reviewed-by: NToby Gray <toby.gray@realvnc.com>
Signed-off-by: NSimon Haggett <simon.haggett@realvnc.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

The device is a bluetooth device, but one occurence by mistake
had marked it as USB.
Reported-by: NJoshua Dillon <jvdillon@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

In case IO cannot be started because there is a lack of bandwidth
on the bus, it makes no sense to reset the device. If IO is requested
because the device is opened, user space should be notified with
an error right away. If the lack of bandwidth arises later, for
example after resume, there's no other choice but to retry in the
hope that bandwidth will be freed.
Signed-off-by: NOliver Neukum <oneukum@suse.de>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Adds multitouch support for the Gametel Android game controller.

The multitouch events are emulated by the Gametel device. Each physical button
is configured to generate a MT event on a specific coordinate. This seems to be
the only way for us to support Android games that doesn't support HID gamepads.
It is possible to inject MT events at Android level, but this requires root on
the phone.
Signed-off-by: NAndreas Nielsen <eas@svep.se>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch adds reporting of ABS_WHEEL event. Raported walues are 0..71
and are related to absolute location of the finger on the wheel.
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Reviewed-by: NJason Gerecke <killertofu@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

It's a trivial patch. It's doesn't change the functionality as the helper
input_set_capability does the same thing.
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Add support for BT-driven configuration of the TiVo remote.
Reported-by: NJoshua Dillon <jvdillon@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Stylus buttons have to be resetted when going out-of-prox.
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Reviewed-by: NJason Gerecke <killertofu@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Microsoft's documentation about multitouch protocols tells that
if a device presents one touch per report, then it should be treated
as a serial protocol.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

When the quirk HID_QUIRK_MULTITOUCH is present and when hid-multitouch
is loaded, let's pass the device to hid-multitouch even if it has
not been registered in hid-multitouch.

If any other driver wants to take precedence over hid-multitouch,
the usual way of adding it to hid_have_special_driver will work as
the quirk HID_QUIRK_MULTITOUCH won't be set by the generic hid layer.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

LG multitouch panels, such as the one found in Dell ST2220T, has buggy
reports descriptors. With the previous implementation, it was impossible
to rely on the reports descriptors to determine how the different
touches are emitted from the device.

This patch changes the splitting of the different touches in the report
in a more robust way.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Introduce 'hid_ignore_special_drivers' module parameter that makes hid-core
claim the device even if it's listed in hid_have_special_driver[]. This
is useful mostly for debugging purposes and specialized initrds, where
all the hid drivers are not avaiable.
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Some quanta devices do not like to be polled for reports
descriptors, thus this quirk.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This is a list of devices that should be handled by hid-multitouch.  They all
present the HID usage "Contact ID" and won't be handled by hid-input.  Some of
them have _not_ been tested (though I have their report descriptors), but I've
been guaranted by eeti that they follow the same protocol.  The tested ones are
also blacklisted in hid-core.c.
Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Signed-off-by: NBenjamin Tissoires <benjamin.tissoires@enac.fr>
Acked-by: NHenrik Rydberg <rydberg@euromail.se>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Add support for unknown Waltop tablet with product ID 0x0038.
This tablet is sold as Genius G-Pen F509.
Signed-off-by: NNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Replace original report descriptor dumps in the comments with links to tablet
descriptions in a wiki, to make code clearer.
Signed-off-by: NNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Replace original report descriptor dumps in the comments with links to tablet
descriptions in a wiki, to make code clearer.
Signed-off-by: NNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Allow array field values out of range as per HID 1.11 specification,
section 6.2.25:

	Rather than returning a single bit for each button in the group, an
	array returns an index in each field that corresponds to the pressed
	button (like keyboard scan codes). An out-of range value in and array
	field is considered no controls asserted.

Apparently, "and" above is a typo and should be "an".

This fixes at least Waltop tablet pen clicks - otherwise BTN_TOUCH is never
released.

The relevant part of Waltop tablet report descriptors is this:

	0x09, 0x42,         /*          Usage (Tip Switch),         */
	0x09, 0x44,         /*          Usage (Barrel Switch),      */
	0x09, 0x46,         /*          Usage (Tablet Pick),        */
	0x15, 0x01,         /*          Logical Minimum (1),        */
	0x25, 0x03,         /*          Logical Maximum (3),        */
	0x75, 0x04,         /*          Report Size (4),            */
	0x95, 0x01,         /*          Report Count (1),           */
	0x80,               /*          Input,                      */

This is a regression fix for commit b4b583d4 ("HID: be more strict when
ignoring out-of-range fields").
Signed-off-by: NNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch adds reporting of 1 wheel button and 8 strip buttons for Intuos4 WL.
The buttons are reported as BTN_0 to BTN_9. The change of type butstate variable
is required as the old type 'char' couldn't store state of 9 buttons. The change
is not affecting Graphire tablet as it only uses first 2 bits of 'butstate'.
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Acked-by：Ping Cheng <pinglinux@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch adds reporting of distance of tool to the tablet surface. Maximum
reported value is 63 (0x3F).
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Acked-by: NPeter Hutterer <peter.hutterer@who-t.net>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Add support for three KYE tablets: EasyPen i405X, MousePen i608X, EasyPen M610X.
Update Kconfig entry accordingly, remove EXPERT dependency.
Signed-off-by: NNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch (as1531) adds a NOGET quirk for the Slim+ keyboard marketed
by AIREN.  This keyboard seems to have a lot of bugs; NOGET works
around only one of them.
Signed-off-by: NAlan Stern <stern@rowland.harvard.edu>
Reported-by: Nokias <d.okias@gmail.com>
CC: <stable@vger.kernel.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch implements reporting id and serial number of used tool.
Reported values are the same as for USB on of the driver for wacom Intuos4 WL
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

ABS_MISC has to be set for Intuos4 WL otherwise xorg driver won't use proper
protocol and the information about tool id and serial is lost.
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Reported-by: NAndreas Hübner <andreas@k4n.de>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

The driver currently only supports the PS1000 controller.
It fixes the report descriptor by removing a non-existing axis and
clearing the constant bit on the d-pad and button input reports.
Signed-off-by: NAndreas Hübner <andreas@k4n.de>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Before commit 534a7b8e ("HID: Add full support for Logitech Unifying
receivers") Logitech Unifying receiver can work as generic device
without special driver, after that commit these devices does not works
without special driver.

After this patch they will use generic driver if special driver is disabled.
Signed-off-by: NKonstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Don't zero the current tool before reporting its release to the input
subsystem.
Signed-off-by: NAristeu Rozanski <aris@redhat.com>
Tested-by: NPrzemo Firszt <przemo@firszt.eu>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Also correct the quirks for the Super Joy Box 3 Pro and Super Dual Box.
Signed-off-by: NSean Young <sean@mess.org>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

The name reported by Inutos4 WL connected by bluetooth is "PTK-540WL" and
to make it consistent with other Wacom devices it has to be converted to
"Wacom Intuos4 WL". It also makes userland applications aware that it's
a Wacom device.

This aligns naming of device to same used when this device is plugged into USB
port and controlled by USB wacom driver; and thus helps align userland logic to
route to apps like xf86-input-wacom.
Signed-off-by: NPrzemo Firszt <przemo@firszt.eu>
Reviewed-by: NChris Bagwell <chris@cnpbagwell.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

CH Fighterstick requires HID_QUIRK_NOGET as many other CH devices do. This
patch adds device id for Fighterstick and adds necessary line to HID quirk
list.
Signed-off-by: NVille Ranki <ville.ranki@iki.fi>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

While at it, also fix some minor codingstyle issues.
Signed-off-by: NDenis Kovalev <Denis.Kovalev@dataart.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Signed-off-by: NChase Douglas <chase.douglas@canonical.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Add support for Waltop Q Pad by fixing its report descriptor.

This tablet is also sold as Aiptek HyperPen Mini. Other possible names
include: NGS Flexi Style, VisTablet PenPad, iVistaTablet Q Flex Pad, Bravod
Q-PD65-S.
Signed-off-by: NNikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Analogically to d7cb3dbd ("HID: wacom: Fix invalid power_supply_powers
calls"), fix also the same occurence in wiimote driver.

Reported-by: przemo@firszt.eu
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

Fix mismatch between Kconfig name and Makefile expectation.
Signed-off-by: NJiri Kosina <jkosina@suse.cz>

This patch finishes off adding full support for the TiVo Slide remote,
which is a mostly pure HID device from the perspective of the kernel.
There are a few mappings that use a vendor-specific usage page, and a
few keys in the consumer usage page that I think make sense to remap
slightly, to better fit their key labels' intended use. Doing this in a
stand-alone hid-tivo.c makes the modifications only matter for this
specific device.

What's actually connected to the computer is a Broadcom-made usb dongle,
which has an embedded hub, bluetooth adapter, mouse and keyboard
devices. You pair with the dongle, then the remote sends data that its
converted into HID on the keyboard interface (the mouse interface
doesn't do anything interesting, so far as I can tell).

lsusb for this device:
Bus 004 Device 005: ID 0a5c:2190 Broadcom Corp.
Bus 004 Device 004: ID 0a5c:4503 Broadcom Corp.
Bus 004 Device 003: ID 150a:1201
Bus 004 Device 002: ID 0a5c:4500 Broadcom Corp. BCM2046B1 USB 2.0 Hub (part of BCM2046 Bluetooth)

Speaking of the keyboard interface, the remote actually does contain a
keyboard as well. The top slides away, revealing a reasonably functional
qwerty keyboard (not unlike many slide cell phones), thus the product
name.

CC: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: NJarod Wilson <jarod@redhat.com>
Signed-off-by: NJiri Kosina <jkosina@suse.cz>