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HID: zeroing of bytes in output fields is bogus
This patch removes bogus zeroing of unused bits in output reports,
introduced in Simon's patch in commit d4ae650a.
According to the specification, any sane device should not care
about values of unused bits.
What is worse, the zeroing is done in a way which is broken and
might clear certain bits in output reports which are actually
_used_ - a device that has multiple fields with one value of
the size 1 bit each might serve as an example of why this is
bogus - the second call of hid_output_report() would clear the
first bit of report, which has already been set up previously.
This patch will break LEDs on SpaceNavigator, because this device
is broken and takes into account the bits which it shouldn't touch.
The quirk for this particular device will be provided in a separate
patch.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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HID: Do not discard truncated input reports
Truncated reports should not be discarded since it prevents buggy
devices from communicating with userspace.
Prior to the regession introduced in 2.6.20, a shorter-than-expected
report in hid_input_report() was passed thru after having the missing
bytes cleared. This behavior was established over a few patches in the
2.6.early-teens days, including commit
cd6104572bca9e4afe0dcdb8ecd65ef90b01297b.
This patch restores the previous behavior and fixes the regression.
Signed-off-by: Adam Kropelin <akropel1@rochester.rr.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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HID: fix possible double-free on error path in hid parser
Freeing of device->collection is properly done in hid_free_device() (as
this function is supposed to free all the device resources and could be
called from transport specific code, e.g. usb_hid_configure()).
Remove all kfree() calls preceeding the hid_free_device() call.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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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>
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Patch adds entries to the HID consumer page for the Firefly
Mini IR remote control
Signed-off-by: Simon Bennett <simon@levanta.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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hid_free_device() doesn't free device->collection (but it does
free device->rdesc and device itself). This imposes memory leak.
Fix it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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There is no reason for generic hid-input.c to include usb-specific
input.h.
As a sideeffect, this also fixes warning of redefinition of dbg()
macro, when hid-input.c is compiled with DEBUG (as there is a clash
between dbg() from hid.h and usb/input.h).
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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hid/hid-core.c references 'len' variable when DEBUG_DATA is defined,
but the actual name of the variable is 'size'. Fix it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This change introduces a mapping for LED indicators between the HID
specification and the Linux input subsystem. The previous code properly
mapped the LEDs relevant for Keyboards, but garbeled the remaining ones.
With this change all LED enums from the input system get mapped to more
or less equivalent LED numbers from the HID specification.
This patch also ensures that the unused bits in a HID report to the
device are zeroed out. This makes the 3Dconnexion SpaceNavigator fully
usable with the linux input system.
Signed-off-by: Simon Budig <simon@budig.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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DRIVER_DESC macro is wrong in drivers/hid/hid-core.c. Its value
is legacy from original usb+hid code and clashes with current
usbhid implementation. Fix it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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mousepoll parameter makes no sense for generic HID code. It
belongs to (and is implemented by) usbhid. This is also where
all users are expecting it.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Remove unnecessary cast.
Signed-off-by: Ahmed Darwish <darwish.07@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch fixes mappings for the Logitech USB BT receiver that
ships along with Logitech's DiNovo Edge keyboard. Without these
changes, the "touchwheel" does not work as intended (a mouse)
Signed-off-by: Adrian Drzewiecki <adriand@drze.net>
Acked-by: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The help text for CONFIG_HID might imply for someone that
it's necessary to enable it for any keyboard or mouse
attached to the system. This is obviously not correct, so
fix it to avoid confusing the users.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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HID it defaults to 'y'. When you have input deselected, this
causes the kernel to fail to link.
Fix it by making it depend on INPUT.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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On USB keyboards lots of hot/internet keys are not working. This patch
adds support for a number of keys from the USB HID Usage Table
(http://www.usb.org/developers/devclass_docs/Hut1_12.pdf).
It also adds several new key codes. Most of them are used on real world
keyboards I know. I added some others (KEY_+ EDITOR, GRAPHICSEDITOR, DATABASE,
NEWS, VOICEMAIL, VIDEOPHONE) to avoid "holes".
I also added KEY_ZOOMRESET as it is possible to have a inet keyboard and a
remote control in parallel and it makes sense to have them behave differently.
Signed-off-by: Florian Festi <ffesti@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This modifies Makefiles and Kconfigs to properly reflect the creation of
generic HID layer.
It also removes the dependency of BROKEN, which was introduced by the
first patch in series (see the comment). Also updates credits.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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pb_fnmode parameter has to be passed to usbhid, both for compatibility reasons
and also because it logically belongs there.
Also removes empty hid-input.c file in drivers/usb/input.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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hid_input_report() was needlessly USB-specific in USB HID. This patch
makes the function independent of HID implementation and fixes all
the current users. Bluetooth patches comply with this prototype.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- hiddev is USB-only (agreed with Marcel Holtmann that Bluetooth currently
doesn't need it, and future planned interface (rawhid) will be more flexible
and usable)
- both HID and USB-hid can be now compiled as modules (wasn't possible before
hiddev was fully separated from generic HID layer)
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- 'dev' in struct hid_device changed from struct usb_device to
struct device and fixed all the users
- renamed functions which are part of USB HID API from 'hid_*' to
'usbhid_*'
- force feedback initialization moved from common part into USB-specific
driver
- added usbhid.h header for USB HID API users
- removed USB-specific fields from struct hid_device and moved them
to new usbhid_device, which is pointed to by hid_device->driver_data
- fixed all USB users to use this new structure
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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- fixed generic API (added neccessary EXPORT_SYMBOL, fixed hid.h to provide correct
prototypes)
- extended hid_device with open/close/event function pointers to driver-specific
functions
- added driver specific driver_data to hid_device
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The "big main" split of USB HID code into generic HID code and
USB-transport specific HID handling.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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