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path: root/drivers/input
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2026-04-08Input: inport - remove driverDmitry Torokhov
Inport (ATI XL and Microsoft) mice use specialized bus interface implemented via an ISA add-in card. Have been superseded by PS/2 and then USB, and are historical curiosity by now. Remove the driver. Link: https://patch.msgid.link/20240808172733.1194442-2-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-08Input: qt1070 - inline i2c_check_functionality checkThorsten Blum
Inline the i2c_check_functionality() check, since the function returns a boolean status rather than an error code. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Link: https://patch.msgid.link/20260408141926.1181389-4-thorsten.blum@linux.dev Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-08Input: qt1050 - inline i2c_check_functionality checkThorsten Blum
Inline the i2c_check_functionality() check, since the function returns a boolean status rather than an error code. Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev> Link: https://patch.msgid.link/20260408141926.1181389-3-thorsten.blum@linux.dev Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-07Input: uinput - fix circular locking dependency with ff-coreMikhail Gavrilov
A lockdep circular locking dependency warning can be triggered reproducibly when using a force-feedback gamepad with uinput (for example, playing ELDEN RING under Wine with a Flydigi Vader 5 controller): ff->mutex -> udev->mutex -> input_mutex -> dev->mutex -> ff->mutex The cycle is caused by four lock acquisition paths: 1. ff upload: input_ff_upload() holds ff->mutex and calls uinput_dev_upload_effect() -> uinput_request_submit() -> uinput_request_send(), which acquires udev->mutex. 2. device create: uinput_ioctl_handler() holds udev->mutex and calls uinput_create_device() -> input_register_device(), which acquires input_mutex. 3. device register: input_register_device() holds input_mutex and calls kbd_connect() -> input_register_handle(), which acquires dev->mutex. 4. evdev release: evdev_release() calls input_flush_device() under dev->mutex, which calls input_ff_flush() acquiring ff->mutex. Fix this by introducing a new state_lock spinlock to protect udev->state and udev->dev access in uinput_request_send() instead of acquiring udev->mutex. The function only needs to atomically check device state and queue an input event into the ring buffer via uinput_dev_event() -- both operations are safe under a spinlock (ktime_get_ts64() and wake_up_interruptible() do not sleep). This breaks the ff->mutex -> udev->mutex link since a spinlock is a leaf in the lock ordering and cannot form cycles with mutexes. To keep state transitions visible to uinput_request_send(), protect writes to udev->state in uinput_create_device() and uinput_destroy_device() with the same state_lock spinlock. Additionally, move init_completion(&request->done) from uinput_request_send() to uinput_request_submit() before uinput_request_reserve_slot(). Once the slot is allocated, uinput_flush_requests() may call complete() on it at any time from the destroy path, so the completion must be initialised before the request becomes visible. Lock ordering after the fix: ff->mutex -> state_lock (spinlock, leaf) udev->mutex -> state_lock (spinlock, leaf) udev->mutex -> input_mutex -> dev->mutex -> ff->mutex (no back-edge) Fixes: ff462551235d ("Input: uinput - switch to the new FF interface") Cc: stable@vger.kernel.org Link: https://lore.kernel.org/all/CABXGCsMoxag+kEwHhb7KqhuyxfmGGd0P=tHZyb1uKE0pLr8Hkg@mail.gmail.com/ Signed-off-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com> Link: https://patch.msgid.link/20260407075031.38351-1-mikhail.v.gavrilov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-07Input: pc110pad - remove driverDmitry Torokhov
Palm Top PC 110 is a handheld personal computer with 80486SX CPU that was released exclusively in Japan in September 1995. While the kernel still supports 486 CPU it is highly unlikely that anyone is using this device with the latest kernel. Remove the driver. [bhelgaas: since this was posted, "x86/cpu: Remove M486/M486SX/ELAN support" has been queued for v7.1, so pc110pad is no longer relevant: https://lore.kernel.org/all/20251214084710.3606385-2-mingo@kernel.org/] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://patch.msgid.link/20240808172733.1194442-4-dmitry.torokhov@gmail.com
2026-04-06Input: aiptek - validate raw macro indices before updating statePengpeng Hou
aiptek_irq() derives macro key indices directly from tablet reports and then uses them to index macroKeyEvents[]. Report types 4 and 5 also save the derived value in aiptek->lastMacro and later use that state to release the previous key. Validate the raw macro index once before it enters that state machine, so lastMacro only ever stores an in-range macro key. Keep direct bounds checks for report type 6, which reads the macro number from the packet body and uses it immediately. Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn> Link: https://patch.msgid.link/20260329001711.88076-1-pengpeng@iscas.ac.cn [dtor: fix macro fallback in report 5s to use -1] Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-06Input: gf2k - skip invalid hat lookup valuesPengpeng Hou
gf2k_read() decodes the hat position from a 4-bit field and uses it directly to index gf2k_hat_to_axis[]. The lookup table only has nine entries, so malformed packets can read past the end of the fixed table. Skip hat reporting when the decoded value falls outside the lookup table instead of forcing it to the neutral position. This keeps the fix local and avoids reporting a made-up axis state for malformed packets. Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn> Link: https://patch.msgid.link/20260407120001.1-gf2k-v2-pengpeng@iscas.ac.cn Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-04Merge tag 'input-for-v7.0-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: - new IDs for BETOP BTP-KP50B/C and Razer Wolverine V3 Pro added to xpad controller driver - another quirk for new TUXEDO InfinityBook added to i8042 - a small fixup for Synaptics RMI4 driver to properly unlock mutex when encountering an error in F54 - an update to bcm5974 touch controller driver to reliably switch into wellspring mode * tag 'input-for-v7.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless mode Input: xpad - add support for Razer Wolverine V3 Pro Input: synaptics-rmi4 - fix a locking bug in an error path Input: i8042 - add TUXEDO InfinityBook Max 16 Gen10 AMD to i8042 quirk table Input: bcm5974 - recover from failed mode switch
2026-04-03Input: xpad - add support for BETOP BTP-KP50B/C controller's wireless modeShengyu Qu
BETOP's BTP-KP50B and BTP-KP50C controller's wireless dongles are both working as standard Xbox 360 controllers. Add USB device IDs for them to xpad driver. Signed-off-by: Shengyu Qu <wiagn233@outlook.com> Link: https://patch.msgid.link/TY4PR01MB14432B4B298EA186E5F86C46B9855A@TY4PR01MB14432.jpnprd01.prod.outlook.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-03Input: xpad - add support for Razer Wolverine V3 ProZoltan Illes
Add device IDs for the Razer Wolverine V3 Pro controller in both wired (0x0a57) and wireless 2.4 GHz dongle (0x0a59) modes. The controller uses the Xbox 360 protocol (vendor-specific class, subclass 93, protocol 1) on interface 0 with an identical 20-byte input report layout, so no additional processing is needed. Signed-off-by: Zoltan Illes <zoliviragh@gmail.com> Link: https://patch.msgid.link/20260329220031.1325509-1-137647604+ZlordHUN@users.noreply.github.com Cc: stable@vger.kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-03Input: xpad - add RedOctane Games vendor idSanjay Govind
Add vendor ID for RedOctane Games to xpad driver. Signed-off-by: Sanjay Govind <sanjay.govind9@gmail.com> Link: https://patch.msgid.link/20260311213106.271577-2-sanjay.govind9@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-03Input: xpad - remove stale TODO and changelog headerElliot Tester
All items in the TODO block have since been addressed: axis tuning, analog button handling, rumble support, and dance pad USB IDs are all implemented. The manual changelog is also removed as history is tracked in git. Signed-off-by: Elliot Tester <elliotctester1@gmail.com> Link: https://patch.msgid.link/20260325221618.135833-1-elliotctester1@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-01Input: usbtouchscreen - refactor endpoint lookupJohan Hovold
Use the common USB helpers for looking up bulk and interrupt endpoints (and determining endpoint numbers) instead of open coding. Note that the NEXIO data interface has two bulk endpoints (see commit 5197424cdccc ("Input: usbtouchscreen - add NEXIO (or iNexio) support") for the descriptors). The lookup in probe handles both bulk-in and interrupt-in endpoints and was added to handle NEXIO devices. Replace the open coded lookup with a lookup for the common interrupt endpoint and an explicit fallback accepting a bulk endpoint. This iterates over the (two) endpoints twice for NEXIO devices but makes it more clear what is going on. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20260401082212.2180434-1-johan@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-01Input: aw86927 - add support for Awinic AW86938Griffin Kroah-Hartman
Add support for the I2C-connected Awinic AW86938 LRA haptic controller. The AW86938 has a similar but slightly different register layout. In particular, the boost mode register values. The AW86938 also has some extra features that aren't implemented in this driver yet. Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com> Link: https://patch.msgid.link/20260302-aw86938-driver-v4-3-92c865df9cca@fairphone.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-04-01Input: aw86927 - respect vibration magnitude levelsGriffin Kroah-Hartman
Previously the gain value was hardcoded. Take the magnitude passed via the input API and configure the gain register accordingly. Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com> Link: https://patch.msgid.link/20260302-aw86938-driver-v4-1-92c865df9cca@fairphone.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-30Input: synaptics_usb - refactor endpoint lookupJohan Hovold
Use the common USB helper for looking up interrupt-in endpoints instead of open coding. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20260330095948.1663141-4-johan@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-30Input: appletouch - refactor endpoint lookupJohan Hovold
Use the common USB helpers for looking up interrupt-in endpoints (and determining endpoint numbers) instead of open coding. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20260330095948.1663141-3-johan@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-30Input: keyspan-remote - refactor endpoint lookupJohan Hovold
Use the common USB helper for looking up interrupt-in endpoints instead of open coding. Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://patch.msgid.link/20260330095948.1663141-2-johan@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: pegasus_notetaker - use HID definesOliver Neukum
The driver uses its own definitions for HID requests. This leads to duplication and obfuscation. Use HID's definitions. Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://patch.msgid.link/20260325143256.371854-2-oneukum@suse.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: aiptek - use HID headersOliver Neukum
The driver uses its own definitions for HID requests. This leads to duplication and obfuscation. Use HID's definitions. Signed-off-by: Oliver Neukum <oneukum@suse.com> Link: https://patch.msgid.link/20260325143256.371854-1-oneukum@suse.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: goodix-berlin - report a resolution of 10 units/mmVal Packett
Without a reported resolution, userspace was assuming 1 unit/mm which is wildly wrong: a regular smartphone is clearly not 2.4 meters tall. Most applications do not care much for this kind of raw mm value, but Phosh's on-screen keyboard would accidentally trigger swipe-to-close gestures due to misinterpreting small movements as huge ones. Do what the older goodix.c driver does and set the resolution to 10 units/mm to make sure the numbers calculated by userspace are reasonable. Signed-off-by: Val Packett <val@packett.cool> Link: https://patch.msgid.link/20260321073242.556253-1-val@packett.cool Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: zinitix - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: wm97xx - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: wdt87xx_i2c - switch to using cleanup functionsDmitry Torokhov
Start using __free() and guard() primitives to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: tsc2007 - use guard notation when acquiring mutexesDmitry Torokhov
This makes the code more compact and error handling more robust. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: sx8654 - use IRQF_NOAUTOEN when requesting interruptDmitry Torokhov
Instead of requesting interrupt normally and immediately disabling it with call to disable_irq() use IRQF_NOAUTOEN to keep it disabled until it is needed. This avoids a tiny window when interrupt is enabled but not needed. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: sx8654 - use guard notation when acquiring spinlockDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: sur40 - use guard notation when acquiring spinlockDmitry Torokhov
Guard notation simplifies code. Also use list_first_entry() instead of list_entry() to emphasize intent. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: stmfts - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: raydium_i2c_ts - switch to using cleanup functionsDmitry Torokhov
Start using __free() and guard() primitives to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: pixcir_i2c_ts - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: novatek-nvt-ts - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-25Input: mxs-lradc-ts - use guard notation when acquiring spinlockDmitry Torokhov
Guard notation simplifies code and shows critical section more clearly. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: msg2638 - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: mms114 - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Also stop trying to check if input device is opened/in use in the interrupt handler - the interrupt is disabled when device is closed or suspended. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: mk712 - use guard notation when acquiring spinlockDmitry Torokhov
Using guard notation makes the code more compact and error handling more robust by ensuring that locks are released in all code paths when control leaves critical section. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: melfas_mip4 - switch to using cleanup functionsDmitry Torokhov
Start using __free() and guard() primitives to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: lpc32xx_ts - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: iqs7211 - use cleanup facility for fwnodesDmitry Torokhov
Use __free(fwnode_handle) cleanup facility to ensure that references to acquired fwnodes are dropped at appropriate times automatically. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: iqs5xx - simplify parsing of firmware blobDmitry Torokhov
Do not define or use iqs5xx_ihex_rec structure: the original code was using just a couple of fields in it and instead used it to calculate offset to record data. The data field was actually reserving space for checksum. Instead iterate through fields and advance pointer explicitly. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: iqs5xx - switch to using cleanup functionsDmitry Torokhov
Start using __free() and guard() primitives to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: ipaq-micro-ts - use guard notation when acquiring mutex/spinlockDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: imx6ul_tsc - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: imagis - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: hycon-hy46xx - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: hideep - switch to using cleanup functionsDmitry Torokhov
Start using __free() and guard() primitives to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: goodix - switch to using cleanup functions in firmware codeDmitry Torokhov
Start using __free(firmware) to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: exc3000 - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Note that callers of exc3000_vendor_data_request() always expect response, so it was adjusted to always wait for it. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: elo - use guard notation when acquiring mutexDmitry Torokhov
Guard notation simplifies code. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2026-03-24Input: elants_i2c - switch to using cleanup facilitiesDmitry Torokhov
Start using __free() and guard() primitives to simplify the code and error handling. Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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