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2dc702c991
linux-next/drivers
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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
..
accessibility
acpi ACPI / platform: Add SMB0001 HID to forbidden_id_list 2018-11-21 13:30:13 +01:00
amba
android
ata libata: blacklist SAMSUNG MZ7TD256HAFV-000L9 SSD 2018-11-12 12:44:19 -07:00
atm atm: zatm: Fix empty body Clang warnings 2018-10-18 15:39:10 -07:00
auxdisplay The Compiler Attributes series 2018-11-01 18:34:46 -07:00
base mm/memory_hotplug: fix online/offline_pages called w.o. mem_hotplug_lock 2018-10-31 08:54:17 -07:00
bcma
block for-linus-20181115 2018-11-16 09:31:59 -06:00
bluetooth Merge branch 'work.tty-ioctl' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-10-24 14:43:41 +01:00
bus ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
cdrom gdrom: fix mistake in assignment of error 2018-10-25 11:17:40 -06:00
char RTC for 4.20 2018-10-27 09:24:24 -07:00
clk clk: qcom: gcc: Fix board clock node name 2018-11-09 14:13:55 -08:00
clocksource Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-11-11 16:41:50 -06:00
connector
cpufreq cpufreq: ti-cpufreq: Only register platform_device when supported 2018-11-19 11:26:06 +01:00
cpuidle ARM: cpuidle: Convert to use cpuidle_register|unregister() 2018-11-08 18:53:00 +01:00
crypto crypto: hisilicon - Fix reference after free of memories on error path 2018-11-09 17:35:43 +08:00
dax
dca
devfreq
dio
dma pci-v4.20-changes 2018-10-25 06:50:48 -07:00
dma-buf udmabuf: set read/write flag when exporting 2018-11-16 08:50:53 +01:00
edac * skx_edac: Address translation for NVDIMMs (Tony Luck and Qiuxu Zhuo) 2018-11-02 11:17:22 -07:00
eisa
extcon
firewire
firmware efi: Permit calling efi_mem_reserve_persistent() from atomic context 2018-11-15 10:04:47 +01:00
fmc
fpga fpga: add devm_fpga_region_create 2018-10-16 11:13:50 +02:00
fsi iov_iter: Separate type from direction and use accessor functions 2018-10-24 00:41:07 +01:00
gnss gnss: sirf: fix synchronous write timeout 2018-11-14 20:37:41 +01:00
gpio gpio: mockup: fix indicated direction 2018-11-16 23:06:29 +01:00
gpu Merge tag 'drm-intel-fixes-2018-11-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes 2018-11-23 11:03:21 +10:00
hid HID: input: use the Resolution Multiplier for high-resolution scrolling 2018-12-07 16:27:13 +01:00
hsi
hv Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up 2018-11-11 09:00:20 -08:00
hwmon hwmon: (ibmpowernv) Remove bogus __init annotations 2018-11-04 15:55:12 -08:00
hwspinlock
hwtracing stm class: Use memcat_p() 2018-10-11 12:12:55 +02:00
i2c i2c: nvidia-gpu: make pm_ops static 2018-11-09 17:56:44 +01:00
ide
idle Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 13:32:18 +01:00
iio Staging/IIO patches for 4.20-rc1 2018-10-29 10:38:10 -07:00
infiniband Revert "mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks" 2018-10-26 16:25:19 -07:00
input Merge branch 'xarray' of git://git.infradead.org/users/willy/linux-dax 2018-10-28 11:35:40 -07:00
iommu iommu/vt-d: Use memunmap to free memremap 2018-11-22 17:02:21 +01:00
ipack
irqchip irqchip/irq-mvebu-sei: Fix a NULL vs IS_ERR() bug in probe function 2018-11-01 12:38:48 +01:00
isdn Merge branch 'work.afs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-11-01 19:58:52 -07:00
leds LED fixes for 4.20-rc2 2018-11-08 17:49:04 -06:00
lightnvm lightnvm: pblk: guarantee that backpointer is respected on writer stall 2018-10-09 08:25:08 -06:00
macintosh memblock: stop using implicit alignment to SMP_CACHE_BYTES 2018-10-31 08:54:16 -07:00
mailbox - Convert print users to use the %pOFn format specifier 2018-10-29 10:30:44 -07:00
mcb
md for-linus-20181102 2018-11-02 11:25:48 -07:00
media media: ipu3-cio2: Use cio2_queues_exit 2018-11-06 07:11:59 -05:00
memory
memstick
message
mfd chrome-platform for v4.20 2018-10-31 16:47:55 -07:00
misc misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data 2018-11-11 09:13:19 -08:00
mmc mmc: sdhci-pci: Workaround GLK firmware failing to restore the tuning value 2018-11-19 14:11:07 +01:00
mtd mtd: spi-nor: fix selection of uniform erase type in flexible conf 2018-11-20 14:26:59 +01:00
mux This is the bulk of GPIO changes for the v4.20 series: 2018-10-23 08:45:05 +01:00
net net: gemini: Fix copy/paste error 2018-11-23 22:35:38 -08:00
nfc NFC: nfcmrvl_uart: fix OF child-node lookup 2018-10-23 13:28:53 -05:00
ntb ntb: idt: Alter the driver info comments 2018-11-01 10:33:12 -04:00
nubus
nvdimm libnvdimm for 4.20 2018-10-25 06:31:56 -07:00
nvme nvme-fc: resolve io failures during connect 2018-11-15 11:37:55 +01:00
nvmem nvmem: core: fix regression in of_nvmem_cell_get() 2018-11-11 09:15:29 -08:00
of Devicetree fixes for 4.20-rc: 2018-11-09 16:41:58 -06:00
opp opp: ti-opp-supply: Correct the supply in _get_optimal_vdd_voltage call 2018-11-13 09:40:29 +05:30
oprofile
parisc parisc: Add alternative coding infrastructure 2018-10-17 17:22:26 +02:00
parport
pci Revert "ACPI/PCI: Pay attention to device-specific _PXM node values" 2018-11-13 08:38:17 -06:00
pcmcia powerpc updates for 4.20 2018-10-26 14:36:21 -07:00
perf arm64 updates for 4.20: 2018-10-22 17:30:06 +01:00
phy USB/PHY patches for 4.20-rc1 2018-10-26 08:14:13 -07:00
pinctrl pinctrl: meson: fix meson8b ao pull register bits 2018-11-05 09:33:22 +01:00
platform platform-drivers-x86 for v4.20-1 2018-11-01 08:42:21 -07:00
pnp
power Devicetree updates for 4.20: 2018-10-26 12:09:58 -07:00
powercap Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-10-23 13:32:18 +01:00
pps
ps3
ptp ptp: drop redundant kasprintf() to create worker name 2018-10-28 19:20:06 -07:00
pwm pwm: lpss: Only set update bit if we are actually changing the settings 2018-10-16 13:16:15 +02:00
rapidio
ras
regulator regulator: Regulator updates for next release 2018-10-23 01:54:44 +01:00
remoteproc remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump 2018-10-19 12:54:03 -07:00
reset ARM: SoC driver updates for 4.17 2018-10-29 15:16:01 -07:00
rpmsg
rtc rtc: pcf2127: fix a kmemleak caused in pcf2127_i2c_gather_write 2018-11-07 17:13:56 +01:00
s390 s390/ism: clear dmbe_mask bit before SMC IRQ handling 2018-11-14 14:21:20 -08:00
sbus
scsi SCSI fixes on 20181121 2018-11-22 08:31:46 -08:00
sfi mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
sh
siox
slimbus slimbus: ngd: remove unnecessary check 2018-11-07 14:59:28 +01:00
sn
soc soc: ti: QMSS: Fix usage of irq_set_affinity_hint 2018-11-02 11:22:09 -07:00
soundwire
spi - New Drivers 2018-10-25 06:19:15 -07:00
spmi
ssb
staging media: dm365_ipipeif: better annotate a fall though 2018-11-06 06:58:07 -05:00
target scsi: target/core: Avoid that a kernel oops is triggered when COMPARE AND WRITE fails 2018-11-05 22:16:00 -05:00
tc TC: Set DMA masks for devices 2018-10-11 09:16:44 -07:00
tee
thermal Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2018-10-31 11:28:12 -07:00
thunderbolt
tty TTY/Serial fixes for 4.20-rc2 2018-11-10 13:32:14 -06:00
uio uio: Fix an Oops on load 2018-11-11 09:21:46 -08:00
usb USB fixes for 4.20-rc4 2018-11-22 08:39:29 -08:00
uwb
vfio VFIO updates for v4.20 2018-10-31 11:01:38 -07:00
vhost virtio, vhost: fixes, tweaks 2018-11-01 14:42:49 -07:00
video fbdev changes for v4.20: 2018-10-31 11:41:37 -07:00
virt
virtio virtio-balloon: VIRTIO_BALLOON_F_PAGE_POISON 2018-10-24 20:57:55 -04:00
visorbus
vlynq
vme
w1 w1: IAD Register is yet readable trough iad sys file. Fix snprintf (%u for unsigned, count for max size). 2018-10-15 20:50:32 +02:00
watchdog watchdog: ts4800: release syscon device node in ts4800_wdt_probe() 2018-10-22 10:16:28 +02:00
xen xen: fixes for 4.20-rc2 2018-11-10 08:58:48 -06:00
zorro
Kconfig
Makefile