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path: root/drivers/input/input.c
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2009-03-31proc 2/2: remove struct proc_dir_entry::ownerAlexey Dobriyan
Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy as correctly noted at bug #12454. Someone can lookup entry with NULL ->owner, thus not pinning enything, and release it later resulting in module refcount underflow. We can keep ->owner and supply it at registration time like ->proc_fops and ->data. But this leaves ->owner as easy-manipulative field (just one C assignment) and somebody will forget to unpin previous/pin current module when switching ->owner. ->proc_fops is declared as "const" which should give some thoughts. ->read_proc/->write_proc were just fixed to not require ->owner for protection. rmmod'ed directories will be empty and return "." and ".." -- no harm. And directories with tricky enough readdir and lookup shouldn't be modular. We definitely don't want such modular code. Removing ->owner will also make PDE smaller. So, let's nuke it. Kudos to Jeff Layton for reminding about this, let's say, oversight. http://bugzilla.kernel.org/show_bug.cgi?id=12454 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-30Input: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers
Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-07-21Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 into nextDmitry Torokhov
2008-06-30Input: don't reset sync flag when ignoring eventDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-06-20Input: cdev lock_kernel() pushdownJonathan Corbet
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-04-29drivers: use non-racy method for proc entries creation (2)Denis V. Lunev
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Peter Osterlund <petero2@telia.com> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Neil Brown <neilb@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29proc: remove proc_busAlexey Dobriyan
Remove proc_bus export and variable itself. Using pathnames works fine and is slightly more understandable and greppable. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-01-31Input: constify function pointer tables (seq_operations)Jan Engelhardt
Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-21Input: remove cdev from input_dev structureDmitry Torokhov
Cdev field was obsolete and provided only for backward compatibility since conversion of input core from class devices to regular devices. It is time to remove it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-21Input: Add proper locking when changing device's keymapDmitry Torokhov
Take dev->event_lock to make sure that we don't race with input_event() and also force key up event when removing a key from keymap table. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2008-01-03Input: pass EV_PWR events to event handlersRichard Purdie
input_handle_event() used to pass EV_PWR events to event handlers but no longer does so in 2.6.23. Modules to trigger power management events based on input power events exist but rely on the EV_PWR events being passed to the input event handlers. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-12-14Input: Handle EV_PWR type of input caps in input_set_capability.Dmitry Baryshkov
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-10-19get rid of input BIT* duplicate definesJiri Slaby
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>
2007-10-13Input: use full RCU APIDmitry Torokhov
RT guys alerted me to the fact that in their tree spinlocks are preemptible and it is better to use full RCU API (rcu_read_lock()/rcu_read_unlock()) to be safe. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-10-12Merge master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6Dmitry Torokhov
Conflicts: drivers/macintosh/adbhid.c
2007-10-12Driver core: change add_uevent_var to use a structKay Sievers
This changes the uevent buffer functions to use a struct instead of a long list of parameters. It does no longer require the caller to do the proper buffer termination and size accounting, which is currently wrong in some places. It fixes a known bug where parts of the uevent environment are overwritten because of wrong index calculations. Many thanks to Mathieu Desnoyers for finding bugs and improving the error handling. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-30Input: implement proper locking in input coreDmitry Torokhov
Also add some kerneldoc documentation to input.h Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-18Input: switch to using seq_list_xxx helpersPavel Emelianov
This is essentially just a renaming of the existing functions as copies of seq_list_start() and seq_list_next() already existed in the input.c. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-07-10Input: convert from class devices to standard devicesDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-04-25Input: add input_set_capability() helperDmitry Torokhov
Add input_set_capability() helper used to indicate that an input device supports a certain event without need to manipulate bitmaps directly. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-12Input: prepare to switching to struct deviceDmitry Torokhov
In preparation to switching to struct device and class device going away provide an alias to allow drivers that create devices to use either input_dev->cdev.dev or input_dev->dev.parent to put them into sysfs tree. The former will go away once conversion to struct device is complete. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-04-12Input: rework handle creation codeDmitry Torokhov
- consolidate code for binding handlers to a device - return error codes from handlers connect() methods back to input core and log failures Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-03-16Input: simplify input_free_device()Dmitry Torokhov
Now that sysfs attributes that were marked for deletion can't access their devices we do not need to set name, phys and uniq to NULL. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-03-14Input: add getkeycode and setkeycode methodsMarvin Raaijmakers
Allow drivers to implement their own get and set keycode methods. This will allow drivers to change their keymaps without allocating huge tables covering entire range of possible scancodes. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-03-07Input: let driver core create class device attribute groupsDmitry Torokhov
Rely on device core to create attribute groups for input devices instead of open-coding it. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-03-07Input: export 'uniq' in /proc/bus/input/devicesDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-02-18Input: do not lock device when showing name, phys and uniqDmitry Torokhov
Now that sysfs attributes return -ENODEV once driver requests their removal we do not need to handle scenario when data is deleted from under our feet and can simplify the code. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
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>
2007-02-12[PATCH] mark struct file_operations const 3Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-11-02Input: add comments to input_{allocate|free}_device()Dmitry Torokhov
Hopefully this will stop people from using input_free_device() incorrectly. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-14Input: make input_register_handler() return error codesDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-14Input: remove cruft that was needed for transition to sysfsDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-14Input: fix input module refcountingDmitry Torokhov
Now that input_free_device is basically an alias for input_put_device we need to acquire a reference to input module right when we allocate device because input_dev_release releases reference to input module unconditionally. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-14Input: constify input coreDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-09-10Input: send key up events at disconnectDmitry Torokhov
Emit key up events for all pressed keys/buttons when disconnecting an input device. Cures "stuck" enter key effect when unloading keyboard module. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-19Input: implement new force feedback interfaceAnssi Hannula
Implement a new force feedback interface, in which all non-driver-specific operations are separated to a common module. This includes handling effect type validations, locking, etc. The effects are now file descriptor specific instead of the previous strange half-process half-fd specific behaviour. The effect memory of devices is not emptied if the root user opens and closes the device while another user is using effects. This is a minor change and most likely no force feedback aware programs are affected by this negatively. Otherwise the userspace interface is left unaltered. Signed-off-by: Anssi Hannula <anssi.hannula@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-19Input: add missing handler->start() callDmitry Torokhov
The start() method need to be called every time we create a new handle. This includes not only registering new devices but also when registering new handlers. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-15Input: fix list iteration in input_release_device()Andrew Morton
Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-06Input: introduce input_inject_event() functionDmitry Torokhov
Create input_inject_event() function which is to be used by input handlers as opposed to input_event() which is reserved for drivers implementing input devices. The difference is that if device is "grabbed" by some process input_inject_event() will ignore events unless sent from the handle that is currently owns the device. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-06Input: add start() method to input handlersDmitry Torokhov
The new start() method is called immediately after connect() and also when "grabbed" device is released by its owner. This will allow input handlers to re-synchronize state of once-grabbed device with the rest of devices. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-07-06Input: remove accept method from input_devDmitry Torokhov
This method used to enforce exclusive access to iforce devices, but presenlty there are no known users of this method. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-06-27Input: fix resetting name, phys and uniq when unregistering deviceDmitry Torokhov
It should be done before calling class_device_unregister() because it will destroy the device and free memory if there are no other references to the device. Signed-off-by: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26Input: rearrange exportsDmitry Torokhov
New style is to mark symbol as exported right after its definition. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-06-26Input: fix formatting to better follow CodingStyleDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-06-26Input: reset name, phys and uniq when unregisteringDmitry Torokhov
Name, phys and uniq are quite often constant strings in moules implementing particular input device. If a module unregisters input device and then gets unloaded, the device could still be present in memory (pinned via sysfs), but aforementioned members would point to some random memory. Set them all to NULL when unregistering so sysfs handlers won't try dereferencing them. Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-06-26Input: return correct size when reading modalias attributeRichard Purdie
Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-29Input: make EVIOCGSND return meaningful dataDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-26Input: move input_device_id to mod_devicetable.hDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2006-04-02Input: make modalias code respect allowed buffer sizeDmitry Torokhov
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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