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2dc702c991
linux/drivers/hid
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Peter Hutterer 2dc702c991 HID: input: use the Resolution Multiplier for high-resolution scrolling 
Windows uses a magic number of 120 for a wheel click. High-resolution
scroll wheels are supposed to use a fraction of 120 to signal smaller
scroll steps. This is implemented by the Resolution Multiplier in the
device itself.

If the multiplier is present in the report descriptor, set it to the
logical max and then use the resolution multiplier to calculate the
high-resolution events. This is the recommendation by Microsoft, see
http://msdn.microsoft.com/en-us/windows/hardware/gg487477.aspx

Note that all mice encountered so far have a logical min/max of 0/1, so
it's a binary "yes or no" to high-res scrolling anyway.

To make userspace simpler, always enable the REL_WHEEL_HI_RES bit. Where
the device doesn't support high-resolution scrolling, the value for the
high-res data will simply be a multiple of 120 every time. For userspace,
if REL_WHEEL_HI_RES is available that is the one to be used.

Potential side-effect: a device with a Resolution Multiplier applying to
other Input items will have those items set to the logical max as well.
This cannot easily be worked around but it is doubtful such devices exist.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Verified-by: Harry Cutts <hcutts@chromium.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2018-12-07 16:27:13 +01:00
..
i2c-hid HID: i2c-hid: Disable runtime PM for LG touchscreen 2018-11-19 16:27:00 +01:00
intel-ish-hid Merge branch 'for-4.20/i2c-hid' into for-linus 2018-10-23 13:34:28 +02:00
usbhid HID: hiddev: fix potential Spectre v1 2018-10-26 17:06:24 +02:00
hid-a4tech.c
hid-accutouch.c HID: Accutouch: Add driver for ELO Accutouch 2216 USB Touchscreens 2017-03-21 15:03:55 +01:00
hid-alps.c HID: alps: allow incoming reports when only the trackstick is opened 2018-10-26 17:27:13 +02:00
hid-apple.c HID: add support for Apple Magic Keyboards 2018-08-28 13:52:50 +02:00
hid-appleir.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
hid-asus.c HID: asus: fix build warning wiht CONFIG_ASUS_WMI disabled 2018-11-06 13:57:42 +01:00
hid-aureal.c HID: fix some indenting issues 2015-10-21 13:15:53 +02:00
hid-axff.c
hid-belkin.c
hid-betopff.c
hid-bigbenff.c HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad 2018-09-24 11:49:32 +02:00
hid-cherry.c
hid-chicony.c HID: move Asus keyboard support from hid-chicony to hid-asus 2017-06-08 13:47:52 +02:00
hid-cmedia.c HID: Support for CMedia CM6533 HID audio jack controls 2016-03-02 10:31:36 +01:00
hid-core.c HID: core: process the Resolution Multiplier 2018-12-07 16:27:13 +01:00
hid-corsair.c HID: corsair: Add K70 Vengeance and K70 RAPIDFIRE to 2018-02-16 13:38:16 +01:00
hid-cougar.c HID: cougar: Stop processing vendor events on hid-core 2018-09-05 10:25:37 +02:00
hid-cp2112.c HID: cp2112: Fix I2C_BLOCK_DATA transactions 2017-11-21 21:39:45 +01:00
hid-cypress.c HID: hid-cypress: validate length of report 2017-01-06 16:06:43 +01:00
hid-debug.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2018-07-09 17:16:11 -07:00
hid-dr.c Revert "HID: dragonrise: fix HID Descriptor for 0x0006 PID" 2016-10-10 10:52:01 +02:00
hid-elan.c HID: elan: fix spelling mistake "registred" -> "registered" 2018-10-09 13:32:06 +02:00
hid-elecom.c HID: elecom: add support for EX-G M-XT4DRBK trackball 2018-03-06 15:15:47 +01:00
hid-elo.c HID: elo: clear BTN_LEFT mapping 2017-11-24 14:40:23 +01:00
hid-emsff.c
hid-ezkey.c
hid-gaff.c
hid-gembird.c HID: gembird: add new driver to fix Gembird JPD-DualForce 2 2015-08-18 15:03:43 +02:00
hid-generic.c HID: generic: create one input report per application type 2018-04-26 14:17:31 +02:00
hid-gfrm.c HID: generic: create one input report per application type 2018-04-26 14:17:31 +02:00
hid-google-hammer.c HID: google: drop superfluous const before SIMPLE_DEV_PM_OPS() 2018-10-09 10:43:39 +02:00
hid-gt683r.c HID: use to_hid_device() 2015-12-28 13:41:44 +01:00
hid-gyration.c
hid-holtek-kbd.c
hid-holtek-mouse.c
hid-holtekff.c HID: holtekff: move MODULE_* parameters out of #ifdef block 2017-12-01 09:31:36 +01:00
hid-hyperv.c use the new async probing feature for the hyperv drivers 2018-07-03 13:02:28 +02:00
hid-icade.c
hid-ids.h HID: Add quirk for Primax PIXART OEM mice 2018-11-20 13:07:52 +01:00
hid-input.c HID: input: use the Resolution Multiplier for high-resolution scrolling 2018-12-07 16:27:13 +01:00
hid-ite.c HID: ite: Add hid-ite driver 2017-05-11 10:27:48 +02:00
hid-jabra.c HID: Add special driver for Jabra devices 2017-11-21 12:54:58 +01:00
hid-kensington.c
hid-keytouch.c
hid-kye.c scripts/spelling.txt: add "comsume(r)" pattern and fix typo instances 2017-02-27 18:43:47 -08:00
hid-lcpower.c
hid-led.c HID: hid-led: fix issue with transfer buffer not being dma capable 2016-10-10 10:47:03 +02:00
hid-lenovo.c HID: lenovo: Add support for IBM/Lenovo Scrollpoint mice 2018-04-25 10:48:35 +02:00
hid-lg2ff.c
hid-lg3ff.c
hid-lg4ff.c HID: hid-logitech: remove redundant assignment to pointer value 2017-10-19 13:52:38 +02:00
hid-lg4ff.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hid-lg.c HID: hid-lg: make array cbuf static const to shink object code size 2017-09-06 10:58:54 +02:00
hid-lg.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hid-lgff.c
hid-logitech-dj.c HID: logitech-dj: allow devices to request full pairing information 2017-04-06 14:36:36 +02:00
hid-logitech-hidpp.c Revert "HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration"" 2018-11-22 08:57:33 +01:00
hid-magicmouse.c HID: magicmouse: add support for Apple Magic Trackpad 2 2018-10-03 10:57:58 +02:00
hid-mf.c HID: hid-mf: add force feedback support for Mayflash DolphinBar and GameCube 2017-01-11 22:12:44 +01:00
hid-microsoft.c HID: microsoft: Add rumble support for Xbox One S controller 2018-09-05 10:19:43 +02:00
hid-monterey.c
hid-multitouch.c HID: multitouch: Add pointstick support for Cirque Touchpad 2018-11-19 16:26:59 +01:00
hid-nti.c HID: Add quirk driver for NTI USB-SUN adapter 2017-03-06 13:16:33 +01:00
hid-ntrig.c HID: hid-ntrig: add error handling for sysfs_create_group 2018-06-25 15:16:11 +02:00
hid-ortek.c HID: ortek: add one more buggy device 2017-07-24 17:38:21 +02:00
hid-penmount.c HID: penmount: report only one button for PenMount 6000 USB touchscreen controller 2016-03-10 17:17:26 +01:00
hid-petalynx.c
hid-picolcd_backlight.c HID: picoLCD: Deletion of unnecessary checks before three function calls 2015-06-29 14:51:12 +02:00
hid-picolcd_cir.c media: rc: Remove init_ir_raw_event and DEFINE_IR_RAW_EVENT macros 2018-10-04 14:22:27 -04:00
hid-picolcd_core.c
hid-picolcd_debugfs.c HID: picoLCD: Spelling s/REPORT_WRTIE_MEMORY/REPORT_WRITE_MEMORY/ 2017-03-24 15:45:04 +01:00
hid-picolcd_fb.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
hid-picolcd_lcd.c HID: picoLCD: Deletion of unnecessary checks before three function calls 2015-06-29 14:51:12 +02:00
hid-picolcd_leds.c HID: use to_hid_device() 2015-12-28 13:41:44 +01:00
hid-picolcd.h
hid-pl.c
hid-plantronics.c HID: hid-plantronics: Re-resend Update to map button for PTT products 2018-05-16 11:06:40 +02:00
hid-primax.c
hid-prodikeys.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
hid-quirks.c HID: Add quirk for Primax PIXART OEM mice 2018-11-20 13:07:52 +01:00
hid-redragon.c HID: redragon: fix num lock and caps lock LEDs 2018-06-25 15:23:40 +02:00
hid-retrode.c HID: Add driver for Retrode2 joypad adapter 2017-06-22 14:44:11 +02:00
hid-rmi.c HID: rmi: use HID_QUIRK_NO_INPUT_SYNC 2018-05-30 08:55:33 +02:00
hid-roccat-arvo.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-arvo.h
hid-roccat-common.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-common.h
hid-roccat-isku.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-isku.h
hid-roccat-kone.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-kone.h
hid-roccat-koneplus.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-koneplus.h
hid-roccat-konepure.c
hid-roccat-kovaplus.c HID: roccat: prevent an out of bounds read in kovaplus_profile_activated() 2018-01-23 15:46:58 +01:00
hid-roccat-kovaplus.h
hid-roccat-lua.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-lua.h
hid-roccat-pyra.c HID: use kobj_to_dev() 2015-12-28 13:41:51 +01:00
hid-roccat-pyra.h
hid-roccat-ryos.c
hid-roccat-savu.c
hid-roccat-savu.h
hid-roccat.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hid-saitek.c HID: hid-saitek: Add device ID for RAT 7 Contagion 2018-08-30 10:58:44 +02:00
hid-samsung.c
hid-sensor-custom.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
hid-sensor-hub.c HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub report 2018-09-05 10:22:28 +02:00
hid-sjoy.c
hid-sony.c HID: hid-sony.c: Use devm_ api to simplify sc->output_report_dmabuf 2018-07-09 15:14:08 +02:00
hid-speedlink.c
hid-steam.c HID: steam: remove input device when a hid client is running. 2018-11-19 16:19:51 +01:00
hid-steelseries.c HID: use to_hid_device() 2015-12-28 13:41:44 +01:00
hid-sunplus.c
hid-tivo.c
hid-tmff.c HID: Add ID 044f:b605 ThrustMaster, Inc. force feedback Racing Wheel 2017-11-07 10:04:46 +01:00
hid-topseed.c
hid-twinhan.c
hid-uclogic.c HID: core: remove the need for HID_QUIRK_NO_EMPTY_INPUT 2018-03-23 15:44:57 +01:00
hid-udraw-ps3.c HID: udraw-ps3: accel_limits is local to the driver 2016-11-15 14:23:17 +01:00
hid-waltop.c HID: Remove broken links to tablet descriptions 2016-09-19 14:32:21 +02:00
hid-wiimote-core.c HID: wiimote: add support for Guitar-Hero devices 2018-06-25 15:26:06 +02:00
hid-wiimote-debug.c
hid-wiimote-modules.c HID: wiimote: add support for Guitar-Hero devices 2018-06-25 15:26:06 +02:00
hid-wiimote.h HID: wiimote: add support for Guitar-Hero devices 2018-06-25 15:26:06 +02:00
hid-xinmo.c HID: xinmo: fix for out of range for THT 2P arcade controller. 2017-03-24 15:43:03 +01:00
hid-zpff.c
hid-zydacron.c
hidraw.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
Kconfig platform-drivers-x86 for v4.20-1 2018-11-01 08:42:21 -07:00
Makefile HID: hid-bigbenff: driver for BigBen Interactive PS3OFMINIPAD gamepad 2018-09-24 11:49:32 +02:00
uhid.c Revert "HID: uhid: use strlcpy() instead of strncpy()" 2018-11-19 14:32:27 +01:00
wacom_sys.c Merge branch 'for-4.19/wacom' into for-linus 2018-08-20 18:12:42 +02:00
wacom_wac.c HID: wacom: Work around HID descriptor bug in DTK-2451 and DTH-2452 2018-10-11 14:32:01 +02:00
wacom_wac.h HID: wacom: generic: add the "Report Valid" usage 2018-03-07 15:21:44 +01:00
wacom.h HID: wacom: Add ability to provide explicit battery status info 2017-05-05 21:46:10 +02:00