hidraw is an interface that is going to obsolete hiddev one
day.
Many userland applications are using libusb instead of using
kernel-provided hiddev interface. This is caused by various
reasons - the HID parser in kernel doesn't handle all the
HID hardware on the planet properly, some devices might require
its own specific quirks/drivers, etc.
hiddev interface tries to do its best to parse all the received
reports properly, and presents only parsed usages into userspace.
This is however often not enough, and that's the reason why
many userland applications just don't use hiddev at all, and
rather use libusb to read raw USB events and process them on
their own.
Another drawback of hiddev is that it is USB-specific.
hidraw interface provides userspace readers with really raw HID
reports, no matter what the low-level transport layer is (USB/BT),
and gives the userland applications all the freedom to process
the HID reports in a way they wish to.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Autosuspend for USB HID devices remains problematic as far as mice
and keyboards are concerned. While I am working on a grand solution,
here's a minimalist patch that works for those devices not continously
in use.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
If, in usb_hid_configure(), we fail to allocate storage for 'usbhid',
"if (!(usbhid = kzalloc(sizeof(struct usbhid_device), GFP_KERNEL)))",
then we'll jump to the 'fail:' label where we have this code:
usb_free_urb(usbhid->urbin);
usb_free_urb(usbhid->urbout);
usb_free_urb(usbhid->urbctrl);
Since we got here because we couldn't allocate storage for 'usbhid',
what we have here is a NULL pointer dereference - ouch...
This patch solves that little problem by adding a new
'fail_no_usbhid:' label after the problematic calls to
usb_free_urb() and jumps to that one instead, in the problem case.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch (as918) introduces a new USB driver method: reset_resume.
It is called when a device needs to be reset as part of a resume
procedure (whether because of a device quirk or because of the
USB-Persist facility), thereby taking over a role formerly assigned to
the post_reset method. As a consequence, post_reset no longer needs
an argument indicating whether it is being called as part of a
reset-resume. This separation of functions makes the code clearer.
In addition, the pre_reset and post_reset method return types are
changed; they now must return an error code. The return value is
unused at present, but at some later time we may unbind drivers and
re-probe if they encounter an error during reset handling.
The existing pre_reset and post_reset methods in the usbhid,
usb-storage, and hub drivers are updated to match the new
requirements. For usbhid the post_reset routine is also used for
reset_resume (duplicate method pointers); for the other drivers a new
reset_resume routine is added. The change to hub.c looks bigger than
it really is, because mark_children_for_reset_resume() gets moved down
next to the new hub_reset_resume() routine.
A minor change to usb-storage makes the usb_stor_report_bus_reset()
routine acquire the host lock instead of requiring the caller to hold
it already.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
CC: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as886) adds the controversial USB-persist facility,
allowing USB devices to persist across a power loss during system
suspend.
The facility is controlled by a new Kconfig option (with appropriate
warnings about the potential dangers); when the option is off the
behavior will remain the same as it is now. But when the option is
on, people will be able to use suspend-to-disk and keep their USB
filesystems intact -- something particularly valuable for small
machines where the root filesystem is on a USB device!
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Lately there have been quite a lot of bug reports against broken devices
which require us to fix their report descriptor in the runtime, before it
is passed to the HID parser. Those devices have eaten quite an amount of
our quirks space, which isn't particularly necessary - the quirks are not
needed after the report descriptor is parsed, and they just consume bits.
Therefore this patch separates the quirks for report descriptor fixup, and
moves their handling into separate code. The quirks are then forgotten as
soon as the report descriptor has been parsed.
Module parameter 'rdesc_quirks' is introduced to be able to modify these
quirks in runtime in a similar way to 'quirks' parameter for ordinary HID
quirks.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Petalynx Maxter remote control [1] 0x18b1/0x0037 emits 0xfa and 0xfc from
consumer page (reserved in HUT 1.12) for back and more keys. It also emits
a few usages from LOGIVENDOR page, which need adding.
Also, this device has broken report descriptor - the reported maximum is too
low - it doesn't contain the range for 'back' and 'more' keys, so we need to
bump it up before the report descriptor is being parsed.
Besides all this, it also requires NOGET quirk.
This patch does so.
[1] http://www.elmak.pl/index.php?option=com_phpshop&page=shop.browse&category_id=14&ext=opis&lang=en
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch (as914) replaces a call to flush_scheduled_work() with
cancel_work_sync(), in order to help avoid potential deadlocks.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
There have been many reports recently about broken HID devices, the
diagnosis of which required users to recompile their kernels in order
to be able to provide debugging output needed for coding a quirk for
a particular device.
This patch makes CONFIG_HID_DEBUG default y if !EMBEDDED and makes it
possible to control debugging output produced by HID code by supplying
'debug=1' module parameter.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
In preparation for struct class_device -> struct device input
core conversion switch to using input_dev->dev.parent when
specifying device position in sysfs tree.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Certain versions of Cypress USB barcode readers (this problem is known to
happen at least with PIDs 0xde61 and 0xde64) have report descriptor which
has swapped usage min and usage max tag. This results in HID parser failing
for report descriptor of these devices, as it (wrongly) requires allocating
more usages than HID_MAX_USAGES.
Solve this by walking through the report descriptor for such devices, and swap
the usage min and usage max items (and their values) to be in proper order.
Reported-by: Bret Towe <magnade@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add a 'quirks' module parameter for the usbhid module, so users can
add or modify quirks at module load time.
Signed-off-by: Paul Walmsley <paul@booyaka.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Move the USB_VENDOR* and USB_DEVICE* defines and the hid_blacklist[]
array there from hid-core.c. Add
hid-quirks.c:usbhid_lookup_any_quirks() to return quirk information to
hid-core.c. Convert __u32, __u16 types to u32, u16.
Signed-off-by: Paul Walmsley <paul@booyaka.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add HID_QUIRK_MULTI_INPUT to the EMS USBII (0x0b43/0003) so the kernel detects both joystick
ports properly. Without it you end up with a single joystick node (js0) that combines the
two physical port signals.
Signed-off-by: Paul Zaremba <pez-gpg@treeofice.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This adds support for WiseGroup Quad Joypad (0x0925/0x8800). The
same quirks as for Dual Joypad (0x0925/0x8866) are needed.
Signed-off-by: Sam Liddicott <sam@liddicott.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
On Dell W7658 keyboard, when BIOS sets NumLock LED on, it survives the
takeover by kernel and thus confuses users.
Eating of an increasibly scarce quirk bit is unfortunate. We do it for safety,
given the history of nervous input devices which crash if anything unusual
happens.
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Logitech MX3000 contains report descriptor which doesn't cover usages
above 0x28c, but emits such usages. Report descriptor needs fixing
in the very same way as with receivers shipped with S510 keyboards.
This patch also adds a few mappings for multimedia keys that S510 didn't
emit.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Logitech S510 keyboard is shipped with USB receivers with various product
ids, all need their report descriptor to be fixed. This adds PID 0xc50c.
Reported by Christophe Colombier in kernel.org bugzilla #7352
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add HID_QUIRK_HIDDEV for the Belkin Flip USB KVM, which provides for software
control of switching via a HID class interface. It overloads three HID LED
usages, two of which aren't mapped in the ev_dev input subsection, and which it
doesn't make sense to map. In order to force the creation of a hiddev device
for controlling the Flip, this quirk flag is needed.
Signed-off-by: Daniel P. Engel <dengel@sourceharvest.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Explicitly specify the size of the hid_blacklist quirks member, to guard
against surprises on architectures where unsigned ints aren't 32 bits long.
Signed-off-by: Paul Walmsley <paul@booyaka.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The USB HID driver fails to reset its error-retry timeout when there
has been a long time interval between I/O errors with no successful URB
completions in the meantime. As a result, the very next error would
trigger an immediate reset, even if it was a chance event occurring
long after the previous error.
More USB keyboards and mice than one might expect end up getting I/O
errors. Almost always this results from hardware problems of one sort of
another. For example, people attach the device to a USB extension cable,
which degrades the signal. Or they simply have poor quality cables to
begin with. Or they use a KVM switch which doesn't handle USB messages
correctly. Etc...
There have been reports from several users in which these I/O
errors would occur more or less randomly, at intervals ranging from
seconds to minutes. The error-handling code in hid-core.c was originally
meant for situations where a single outage would persist for a few hundred
ms (electromagnetic interference, for example). It didn't work right when
these more sporadic errors occurred, because of a flaw in the logic
which this patch fixes.
This patch (as873) fixes that oversight.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The vendor/product IDs for the purposes of hid_blacklist got
scathered around the hid-core.c in a rather random way over the
time.
Move all the related definitions at the beginning of the file,
and make them sorted again. Sort also hid_blacklist properly.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Separate usbhid code into dedicated drivers/hid/usbhid directory as
discussed previously with Greg, so that it eases maintaineance process.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Put all Code Mercenaries (VID 0x07c0) IOWarriors (PIDs 0x1500 to 0x15ff) on
the HID blacklist. The range of PIDs has been reserved for IOWarriors. Only
5 PIDs are really used yet.
Signed-off-by: Robert Marquardt <marquardt@codemercs.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Dongle shipped with Logitech DiNovo Edge (0x046d/0xc714) behaves in a weird
non-standard way - it contains multiple reports with the same usage, which
results in remapping of GenericDesktop.X and GenericDesktop.Y usages to
GenericDesktop.Z and GenericDesktop.RX respectively, thus rendering the
touchwheel unusable.
The commit 3506897691 solved this
in a way that it didn't remap certain usages. This however breaks
(at least) middle button of Logic3 / SpectraVideo (0x1267/0x0210),
which in contrary requires the remapping.
To make both of the harware work, allow remapping of these usages again,
and introduce a quirk for Logitech DiNovo Edge "touchwheel" instead - we
disable remapping for key, abs and rel events only for this hardware.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This patch makes extra keys (F1-F12 in special mode, zooming, rotate, shuffle)
on Logitech S510 keyboard work.
Logitech S510 keyboard sends in report no. 3 keys which are far above the
logical maximum described in descriptor for given report.
This patch introduces a HID quirk for this wireless USB receiver/keyboard
in order to fix the report descriptor before it's being parsed - the logical
maximum and the number of usages is bumped up to 0x104d). The values are in the
"Reserved" area of consumer HUT, so HID_MAX_USAGE had to be changed too.
In addition to proper extracting of the values from report descriptor, proper
HID-input mapping is introduced for them.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Report descriptor should be output when CONFIG_HID_DEBUG is defined.
This also mitigates the need for DEBUG and DEBUG_DATA defines, so let's
remove them.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The USB vendor and product IDs are not byteswapped appropriately, and
thus come out in the wrong endianness when fetched through the evdev
using ioctl() on big endian platforms.
Signed-off-by: Julien BLACHE <jb@jblache.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Removes our GTCO CalComp Interwrite IPanels from the hid-core.c blacklist
because the HID Driver properly handles them.
Signed-off-by: Jeremy A. Roberson <jroberson@gtcocalcomp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Add CIDC USB device to HID blacklist since it is actually a USB token
and has its own driver.
Signed-off-by: Zheng XiaoJun <zhengxiaojun@hsic.com.cn>
Cc: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
After Al Viro (finally) succeeded in removing the sched.h #include in module.h
recently, it makes sense again to remove other superfluous sched.h includes.
There are quite a lot of files which include it but don't actually need
anything defined in there. Presumably these includes were once needed for
macros that used to live in sched.h, but moved to other header files in the
course of cleaning it up.
To ease the pain, this time I did not fiddle with any header files and only
removed #includes from .c-files, which tend to cause less trouble.
Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha,
arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig,
allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all
configs in arch/arm/configs on arm. I also checked that no new warnings were
introduced by the patch (actually, some warnings are removed that were emitted
by unnecessarily included header files).
Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add the USB HID quirk HID_QUIRK_SONY_PS3_CONTROLLER. This sends an
HID_REQ_GET_REPORT to the the PS3 controller to put the device into
'operational mode'.
Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Some HID devices by Apple have both keyboard and mouse interfaces; the
keyboard interface is handled by usbhid, but the mouse (really
touchpad) interface must be handled by the separate 'appletouch'
driver. Using HID_QUIRK_IGNORE will make hiddev ignore both
interfaces, therefore a new quirk flag to ignore only the mouse
interface is required.
Signed-off-by: Soeren Sonnenburg <kernel@nn7.de>
Signed-off-by: Sergey Vlasov <vsu@altlinux.ru>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The comment in hid_get_class_descriptor() says a very obvious thing
and is also violating codingstyle. Just remove it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The unused hid_find_field_by_usage() function has been commented out for
a pretty long time. Remove it completely.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hidinput_{open,close}() functions do not belong to usbhid, but
to the generic HID layer. Move them, and fix hooks in struct
hid_device, so that now the callbacks are done to transport-specific
_open() functions, but not input_open() functions.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
hid-debug.h contains a lot of code, and should not therefore
be a header.
This patch moves the code to generic hid layer as .c source, and
introduces CONFIG_HID_DEBUG to conditionally compile it, instead
of playing with #define DEBUG and including hid-debug.h.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add new quirk HID_QUIRK_SKIP_OUTPUT_REPORTS to skip output reports
when enumerating reports on a hid-input device. Add this quirk and
HID_QUIRK_MULTI_INPUT to 0810:0001.
PantherLord Twin USB Joystick, 0810:0001 has separate input reports
for 2 distinct game controllers in the same interface, so it needs
HID_QUIRK_MULTI_INPUT. However, the device also contains one output
report per controller which is used to control the force feedback
function, and we do not want those to appear as separate input
devices as well. The simplest approach seems to be to add a quirk to
skip output reports on 0810:0001, and allow the force feedback
driver to handle those.
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Allow hid devices with HID_QUIRK_MULTI_INPUT to have force feedback.
This was previously disabled because there were not any force
feedback drivers for such devices. This will change with my upcoming
patch.
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The apple powerbook people are used to switch the pb_fnmode
setting at runtime through writing to sysfs, altering the
module parameter value. This was broken for them in 2.6.20-rc1
when generic HID layer was introduced, as the pb_fnmode flag
was made per-hiddevice, instead of global variable.
This patch moves the pb_fnmode module parameter from usbhid module
to hid module, but apart from that retains backward compatibility
with respect to changing the mode through sysfs.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
commit d8c8a39316 introduced a clash in
hid_blacklist for 0x08ca/0x0010 (GTCO vs. AIPTEK). As the vendor of
GTCO device doesn't seem to be interested in supporting their legacy
HW with this conflicting ids, it is OK to remove it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
on request of the sourceforge project for this device, a kind of
robotized CD storage, it should be ignored by the generic driver.
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Adds GTCO CalComp Interwrite IPanels to the hid-core.c blacklist.
Signed-off-by: Jeremy A. Roberson <jroberson@gtcocalcomp.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
The commit 4916b3a57f introduced a
hid regression between 2.6.19 and 2.6.20-rc1. The device put in
input_dev->cdev is now of type usb_device instead of usb_interface.
Before:
> # readlink -f /sys/class/input/input6/event4/device
> /sys/devices/pci0000:00/0000:00:10.0/usb2/2-1/2-1:1.1
After:
> # readlink -f /sys/class/input/input3/event3/device
> /sys/devices/pci0000:00/0000:00:10.0/usb1/1-1
This causes breakage:
> # udevinfo -q all -n /dev/input/event3
> P: /class/input/input3/event3
> N: input/event3
> S: input/by-path/pci-1-1--event-
> E: ID_SERIAL=noserial
> E: ID_PATH=pci-1-1-
No ID_MODEL, ID_VENDOR, ID_REVISION, ID_TYPE etc etc.
Fix this by assigning the intf->dev into hid->dev, and fixing
all the users.
Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
I've got a newer MacBook with core2duo. Two keys on the keyboard are
swapped, "unswaping" works with the same trick as GEYSER3_ISO.
Signed-off-by: Adrian Friedli <masteradi@gmx.ch>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Jiri Kosina