Open petejohanson opened 2 months ago
It looks like there is a bug in ticks->ms conversions in mouse keys that break acceleration behavior; these fixes got acceleration working again for me:
diff --git a/app/src/behaviors/behavior_input_two_axis.c b/app/src/behaviors/behavior_input_two_axis.c
index 20f5d52a..dd2f3bf6 100644
--- a/app/src/behaviors/behavior_input_two_axis.c
+++ b/app/src/behaviors/behavior_input_two_axis.c
@@ -112,7 +112,7 @@ static float speed(const struct behavior_input_two_axis_config *config, uint16_t
float max_speed, int64_t duration_ticks) {
uint8_t accel_exp = get_acceleration_exponent(config, code);
- if ((duration_ticks * CONFIG_SYS_CLOCK_TICKS_PER_SEC / 1000) > config->time_to_max_speed_ms ||
+ if ((1000 * duration_ticks / CONFIG_SYS_CLOCK_TICKS_PER_SEC) > config->time_to_max_speed_ms ||
config->time_to_max_speed_ms == 0 || accel_exp == 0) {
return max_speed;
}
@@ -123,8 +123,8 @@ static float speed(const struct behavior_input_two_axis_config *config, uint16_t
return 0;
}
- float time_fraction = (float)duration_ticks * CONFIG_SYS_CLOCK_TICKS_PER_SEC /
- config->time_to_max_speed_ms / 1000;
+ float time_fraction = (float)(1000 * duration_ticks / CONFIG_SYS_CLOCK_TICKS_PER_SEC) /
+ config->time_to_max_speed_ms;
return max_speed * powf(time_fraction, accel_exp);
}
just fyi, I used this in a custom build and it seems to be working just fine, thanks! https://github.com/kaievns/little-wing/blob/6ce99b4b3827adb583cbbd0d54b5616a0b304c66/zmk-config/config/little_wing.keymap#L27C1-L44C7
a built in mouse to wheel mapper would be a good idea I reckon, i stole mine from badjeff's work
a built in mouse to wheel mapper would be a good idea I reckon, i stole mine from badjeff's work
I added a preconfigured code mapper for this today. After #include <input/processors.dtsi>
you can use &zip_xy_to_scroll_mapper
.
I've just given it a go and it works perfectly for me. I've also noticed that you've added the two-axis to mouse scroll &msc
thing. That's fantastic, thank you!
I was using your previous branch, and I switched to this one. So far it's working great for me with just basic mouse move emulation and scroll on the key bindings. However, the speed of the scroll is wickedly fast compared to the scrolling speed on your previous branch. Almost too quick to keep up with in most cases.
@petejohanson I really like the progress that is made here. I'm in the progress of building my first split keyboard and I want to use joysticks, for more movement and possibly as analog input in games, however the point I want to make is that the current force pushing workflow makes it difficult to keep track of your changes. Of course, I can 'save your old branches' manually, however have you thought about squashing your committs before merge, but develop with normal commits (and rebase FP or merges against main/develop)?
hey @petejohanson i think there is something fishy going on with the split-input
Long story short I'm building a split keyboard with a trackball and I followed your work that someone in discord pointed me to over here https://github.com/sadekbaroudi/zmk-fingerpunch-vik/pull/1/files and i have adopted it over here https://github.com/kaievns/little-wing/blob/6aaabf9901a5721276f37030116f5688fcd68fa0/zmk-config/boards/shields/little_wing/little_wing_right.overlay#L11-L35
If I set the left side as central and the right one (the one with a trackball) as a periferal side, it compiles and works great via USB, but in case of bluetooth connection I think there is lag + interference as data is fed from right to left and then to a PC, and that leads to some very jumpy and unstable cursor movements. And kind of unusable tbh.
But, if i try to set the right side as the central one--so that data would go straight to the PC--, it doesn't compile. The left side says that the @trackball_split
device is not defined
FAILED: CMakeFiles/app.dir/src/split/bluetooth/service.c.obj
ccache /opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -DKERNEL -DNRF52840_XXAA -DPICOLIBC_INTEGER_PRINTF_SCANF -D_FORTIFY_SOURCE=1 -D_POSIX_C_SOURCE=200809 -D__LINUX_ERRNO_EXTENSIONS__ -D__PROGRAM_START -D__ZEPHYR__=1 -I/workspaces/pete-zmk/app/include -I/workspaces/pete-zmk/zephyr/include -I/workspaces/pete-zmk/app/build/left/zephyr/include/generated -I/workspaces/pete-zmk/zephyr/soc/arm/nordic_nrf/nrf52 -I/workspaces/pete-zmk/zephyr/soc/arm/nordic_nrf/common/. -I/workspaces/pete-zmk/zephyr/subsys/usb/device -I/workspaces/pete-zmk/zephyr/subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/nrfx_glue -I/workspaces/pete-zmk/zephyr/subsys/bluetooth -I/workspaces/pete-zmk/zephyr/subsys/settings/include -I/workspaces/pete-zmk/modules/hal/cmsis/CMSIS/Core/Include -I/workspaces/pete-zmk/zephyr/modules/cmsis/. -I/workspaces/pete-zmk/modules/hal/nordic/nrfx -I/workspaces/pete-zmk/modules/hal/nordic/nrfx/drivers/include -I/workspaces/pete-zmk/modules/hal/nordic/nrfx/mdk -I/workspaces/pete-zmk/zephyr/modules/hal_nordic/nrfx/. -I/workspaces/pete-zmk/modules/crypto/tinycrypt/lib/include -I/workspaces/pete-zmk/app/module/include -I/workspaces/pete-zmk/app/module/drivers/sensor/battery/. -fno-strict-aliasing -Os -imacros /workspaces/pete-zmk/app/build/left/zephyr/include/generated/autoconf.h -fno-printf-return-value -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m4 -mthumb -mabi=aapcs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mfp16-format=ieee --sysroot=/opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/arm-zephyr-eabi -imacros /workspaces/pete-zmk/zephyr/include/zephyr/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -Werror=implicit-int -fno-pic -fno-pie -fno-asynchronous-unwind-tables -ftls-model=local-exec -fno-reorder-functions --param=min-pagesize=0 -fno-defer-pop -fmacro-prefix-map=/workspaces/pete-zmk/app=CMAKE_SOURCE_DIR -fmacro-prefix-map=/workspaces/pete-zmk/zephyr=ZEPHYR_BASE -fmacro-prefix-map=/workspaces/pete-zmk=WEST_TOPDIR -ffunction-sections -fdata-sections --specs=picolibc.specs -std=c99 -Wfatal-errors -MD -MT CMakeFiles/app.dir/src/split/bluetooth/service.c.obj -MF CMakeFiles/app.dir/src/split/bluetooth/service.c.obj.d -o CMakeFiles/app.dir/src/split/bluetooth/service.c.obj -c /workspaces/pete-zmk/app/src/split/bluetooth/service.c
In file included from /workspaces/pete-zmk/app/src/split/bluetooth/service.c:17:
/workspaces/pete-zmk/app/src/split/bluetooth/service.c:235:45: warning: implicit declaration of function 'INPUT_SPLIT_CHARS' [-Wimplicit-function-declaration]
235 | DT_FOREACH_STATUS_OKAY(zmk_input_split, INPUT_SPLIT_CHARS)
| ^~~~~~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/bluetooth/gatt.h:572:54: note: in definition of macro 'BT_GATT_SERVICE_DEFINE'
572 | const struct bt_gatt_attr attr_##_name[] = { __VA_ARGS__ }; \
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:69:53: note: in expansion of macro '__DEBRACKET'
69 | #define __GET_ARG2_DEBRACKET(ignore_this, val, ...) __DEBRACKET val
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:64:9: note: in expansion of macro '__GET_ARG2_DEBRACKET'
64 | __GET_ARG2_DEBRACKET(one_or_two_args _if_code, _else_code)
| ^~~~~~~~~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:59:9: note: in expansion of macro '__COND_CODE'
59 | __COND_CODE(_XXXX##_flag, _if_1_code, _else_code)
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_macro.h:180:9: note: in expansion of macro 'Z_COND_CODE_1'
180 | Z_COND_CODE_1(_flag, _if_1_code, _else_code)
| ^~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/devicetree.h:2916:9: note: in expansion of macro 'COND_CODE_1'
2916 | COND_CODE_1(DT_HAS_COMPAT_STATUS_OKAY(compat), \
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:105:36: note: in expansion of macro 'DT_FOREACH_OKAY_zmk_input_split'
105 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
| ^
/workspaces/pete-zmk/app/src/split/bluetooth/service.c:235:5: note: in expansion of macro 'DT_FOREACH_STATUS_OKAY'
235 | DT_FOREACH_STATUS_OKAY(zmk_input_split, INPUT_SPLIT_CHARS)
| ^~~~~~~~~~~~~~~~~~~~~~
/workspaces/pete-zmk/app/build/left/zephyr/include/generated/devicetree_generated.h:20185:48: error: 'DT_N_S_split_inputs_S_trackball_split_0' undeclared here (not in a function); did you mean 'DT_N_S_split_inputs_S_trackball_split_0_ORD'?
20185 | #define DT_FOREACH_OKAY_zmk_input_split(fn) fn(DT_N_S_split_inputs_S_trackball_split_0)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/bluetooth/gatt.h:572:54: note: in definition of macro 'BT_GATT_SERVICE_DEFINE'
572 | const struct bt_gatt_attr attr_##_name[] = { __VA_ARGS__ }; \
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:69:53: note: in expansion of macro '__DEBRACKET'
69 | #define __GET_ARG2_DEBRACKET(ignore_this, val, ...) __DEBRACKET val
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:64:9: note: in expansion of macro '__GET_ARG2_DEBRACKET'
64 | __GET_ARG2_DEBRACKET(one_or_two_args _if_code, _else_code)
| ^~~~~~~~~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:59:9: note: in expansion of macro '__COND_CODE'
59 | __COND_CODE(_XXXX##_flag, _if_1_code, _else_code)
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_macro.h:180:9: note: in expansion of macro 'Z_COND_CODE_1'
180 | Z_COND_CODE_1(_flag, _if_1_code, _else_code)
| ^~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/devicetree.h:2916:9: note: in expansion of macro 'COND_CODE_1'
2916 | COND_CODE_1(DT_HAS_COMPAT_STATUS_OKAY(compat), \
| ^~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:105:36: note: in expansion of macro 'DT_FOREACH_OKAY_zmk_input_split'
105 | #define UTIL_PRIMITIVE_CAT(a, ...) a##__VA_ARGS__
| ^
/workspaces/pete-zmk/zephyr/include/zephyr/sys/util_internal.h:104:26: note: in expansion of macro 'UTIL_PRIMITIVE_CAT'
104 | #define UTIL_CAT(a, ...) UTIL_PRIMITIVE_CAT(a, __VA_ARGS__)
| ^~~~~~~~~~~~~~~~~~
/workspaces/pete-zmk/zephyr/include/zephyr/devicetree.h:2917:22: note: in expansion of macro 'UTIL_CAT'
2917 | (UTIL_CAT(DT_FOREACH_OKAY_, compat)(fn)), \
| ^~~~~~~~
/workspaces/pete-zmk/app/src/split/bluetooth/service.c:235:5: note: in expansion of macro 'DT_FOREACH_STATUS_OKAY'
235 | DT_FOREACH_STATUS_OKAY(zmk_input_split, INPUT_SPLIT_CHARS)
and the right side compiles but fails at the linking stage
[341/341] Linking C executable zephyr/zmk.elf
FAILED: zephyr/zmk.elf zephyr/zmk.map zephyr/zmk.hex zephyr/zmk.bin zephyr/zmk.uf2 zephyr/zmk.stat /workspaces/pete-zmk/app/build/right/zephyr/zmk.map /workspaces/pete-zmk/app/build/right/zephyr/zmk.hex /workspaces/pete-zmk/app/build/right/zephyr/zmk.bin /workspaces/pete-zmk/app/build/right/zephyr/zmk.uf2 /workspaces/pete-zmk/app/build/right/zephyr/zmk.stat
: && ccache /opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -gdwarf-4 zephyr/CMakeFiles/zephyr_final.dir/misc/empty_file.c.obj zephyr/CMakeFiles/zephyr_final.dir/isr_tables.c.obj -o zephyr/zmk.elf zephyr/CMakeFiles/offsets.dir/./arch/arm/core/offsets/offsets.c.obj -fuse-ld=bfd -T zephyr/linker.cmd -Wl,-Map=/workspaces/pete-zmk/app/build/right/zephyr/zephyr_final.map -Wl,--whole-archive app/libapp.a zephyr/libzephyr.a zephyr/arch/common/libarch__common.a zephyr/arch/arch/arm/core/libarch__arm__core.a zephyr/arch/arch/arm/core/cortex_m/libarch__arm__core__cortex_m.a zephyr/arch/arch/arm/core/mpu/libarch__arm__core__mpu.a zephyr/lib/libc/picolibc/liblib__libc__picolibc.a zephyr/lib/libc/common/liblib__libc__common.a zephyr/soc/soc/arm/common/cortex_m/libsoc__arm__common__cortex_m.a zephyr/soc/soc/arm/nordic_nrf/nrf52/libsoc__arm__nordic_nrf__nrf52.a zephyr/subsys/random/libsubsys__random.a zephyr/subsys/usb/device/class/hid/libsubsys__usb__device__class__hid.a zephyr/subsys/bluetooth/common/libsubsys__bluetooth__common.a zephyr/subsys/bluetooth/host/libsubsys__bluetooth__host.a zephyr/subsys/bluetooth/crypto/libsubsys__bluetooth__crypto.a zephyr/subsys/bluetooth/controller/libsubsys__bluetooth__controller.a zephyr/subsys/input/libsubsys__input.a zephyr/subsys/net/libsubsys__net.a zephyr/drivers/usb/device/libdrivers__usb__device.a zephyr/drivers/adc/libdrivers__adc.a zephyr/drivers/clock_control/libdrivers__clock_control.a zephyr/drivers/entropy/libdrivers__entropy.a zephyr/drivers/flash/libdrivers__flash.a zephyr/drivers/gpio/libdrivers__gpio.a zephyr/drivers/hwinfo/libdrivers__hwinfo.a zephyr/drivers/kscan/libdrivers__kscan.a zephyr/drivers/led_strip/libdrivers__led_strip.a zephyr/drivers/pinctrl/libdrivers__pinctrl.a zephyr/drivers/sensor/nrf5/libdrivers__sensor__nrf5.a zephyr/drivers/spi/libdrivers__spi.a zephyr/drivers/timer/libdrivers__timer.a modules/hal_nordic/nrfx/libmodules__hal_nordic__nrfx.a modules/pmw3610/lib..__..__zmk-config__drivers__pmw3610.a modules/module/drivers/sensor/battery/lib..__app__module__drivers__sensor__battery.a modules/module/lib/zmk_debounce/lib..__app__module__lib__zmk_debounce.a -Wl,--no-whole-archive zephyr/kernel/libkernel.a -L"/opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/thumb/v7e-m+fp/hard" -L/workspaces/pete-zmk/app/build/right/zephyr -lgcc -Wl,--print-memory-usage zephyr/arch/common/libisr_tables.a -mcpu=cortex-m4 -mthumb -mabi=aapcs -mfpu=fpv4-sp-d16 -mfloat-abi=hard -mfp16-format=ieee -Wl,--gc-sections -Wl,--build-id=none -Wl,--sort-common=descending -Wl,--sort-section=alignment -Wl,-u,_OffsetAbsSyms -Wl,-u,_ConfigAbsSyms -nostdlib -static -Wl,-X -Wl,-N -Wl,--orphan-handling=warn -Wl,-no-pie -DPICOLIBC_INTEGER_PRINTF_SCANF --specs=picolibc.specs -lc -lgcc && cd /workspaces/pete-zmk/app/build/right/zephyr && /usr/local/lib/python3.12/dist-packages/cmake/data/bin/cmake -E copy zephyr_final.map zmk.map && /opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/bin/arm-zephyr-eabi-objcopy --gap-fill 0xff --output-target=ihex --remove-section=.comment --remove-section=COMMON --remove-section=.eh_frame zmk.elf zmk.hex && /opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/bin/arm-zephyr-eabi-objcopy --gap-fill 0xff --output-target=binary --remove-section=.comment --remove-section=COMMON --remove-section=.eh_frame zmk.elf zmk.bin && /usr/bin/python3 /workspaces/pete-zmk/zephyr/scripts/build/uf2conv.py -c -f 0xada52840 -b 0x26000 -o zmk.uf2 zmk.bin && /opt/zephyr-sdk-0.16.3/arm-zephyr-eabi/bin/arm-zephyr-eabi-readelf -e zmk.elf > zmk.stat && /usr/bin/python3 /workspaces/pete-zmk/zephyr/scripts/build/check_init_priorities.py --elf-file=/workspaces/pete-zmk/app/build/right/zephyr/zmk.elf
Memory region Used Size Region Size %age Used
FLASH: 234812 B 792 KB 28.95%
RAM: 61862 B 256 KB 23.60%
IDT_LIST: 0 GB 2 KB 0.00%
/workspaces/pete-zmk/zephyr/scripts/build/uf2conv.py:204: SyntaxWarning: invalid escape sequence '\s'
words = re.split('\s+', line)
Converting to uf2, output size: 470016, start address: 0x26000
Wrote 470016 bytes to zmk.uf2
ERROR: /split_inputs/trackball_split@0 POST_KERNEL 32 < /soc/spi@40004000/trackball@0 POST_KERNEL 50
ninja: build stopped: subcommand failed.
which looks like some sort of device ordering issue.
thought I'd share it, feel free to ping me on discord if you'd want to dig into it
This is a great update; simple to implement, the scrolling is fantastic -- so smooth! Is there a way to specify cursor speed? Also, are there any options for acceleration such as ramping up to full speed after X ms?
This is a great update; simple to implement, the scrolling is fantastic -- so smooth! Is there a way to specify cursor speed? Also, are there any options for acceleration such as ramping up to full speed after X ms?
Documentation is next on my list to work on.
@petejohanson I really like the progress that is made here. I'm in the progress of building my first split keyboard and I want to use joysticks, for more movement and possibly as analog input in games, however the point I want to make is that the current force pushing workflow makes it difficult to keep track of your changes. Of course, I can 'save your old branches' manually, however have you thought about squashing your committs before merge, but develop with normal commits (and rebase FP or merges against main/develop)?
Undertand that might be tricky. I will try to minimize my rebase and force push, and comment when I do to summarize things. I prefer not to squash at the PR level when there are discrete commits that would be good to keep once this is merged. That being said, I'll work to do the rebase/squash to keep a "clear" commit history to only periodic points, and before merge, so it's easier to follow the work.
I was using your previous branch, and I switched to this one. So far it's working great for me with just basic mouse move emulation and scroll on the key bindings. However, the speed of the scroll is wickedly fast compared to the scrolling speed on your previous branch. Almost too quick to keep up with in most cases.
Can you post a link to your config? Does it work better if you enable CONFIG_ZMK_MOUSE_SMOOTH_SCROLLING=y
?
I was using your previous branch, and I switched to this one. So far it's working great for me with just basic mouse move emulation and scroll on the key bindings. However, the speed of the scroll is wickedly fast compared to the scrolling speed on your previous branch. Almost too quick to keep up with in most cases.
Can you post a link to your config? Does it work better if you enable
CONFIG_ZMK_MOUSE_SMOOTH_SCROLLING=y
?
It's here. Specifically the Lily 58 branch.
I was using your previous branch, and I switched to this one. So far it's working great for me with just basic mouse move emulation and scroll on the key bindings. However, the speed of the scroll is wickedly fast compared to the scrolling speed on your previous branch. Almost too quick to keep up with in most cases.
Can you post a link to your config? Does it work better if you enable
CONFIG_ZMK_MOUSE_SMOOTH_SCROLLING=y
?It's here. Specifically the Lily 58 branch.
Thanks. I also just pushed a tweak to drop the default scroll value, which I'd bumped when testing the smooth scrolling work, so please do try rebuilding and testing again.
Summary
This is the planned successor to #2027 that integrates a more flexible input processing system inspired by the work by badjeff. I will leave #2027 alone for now, but this PR is intended to be the version that's targeted to actually merge.
WARNING The work in this PR is subject to ZERO API/code/config stability guarantees. If you want something that won't randomly break on you, keep using #2027. Only use the branch from this PR if you are willing to accept that, follow the PR closely for any changes, and are technical enough to solve any problems that occur from using it.
Input Processors
All the options for scaling, swapping X/Y values, etc are now accomplished with input processors, that can be set on a given listener, and overridden for a set of given layers:
I've implemented input processors with the following compatible values:
zmk,input-processor-code-mapper
- For translating input codes to other values. Useful for enabling a "scroll layer" that makes a pointer send scroll events instead of X/Y move events.zmk,input-processor-scaler
- For scaling values, using a passed in multiplier and divisor. Useful for "precision layer". Example&vip_xy_scaler 1 4
to scale values by 1/4, for fine grained movements.zmk,input-processor-temp-layer
- For enabling a layer until a certain time period of no input events from the device. Useful for a "mouse layer" with mouse keys when using an integrated trackpad/ball/whatever.zmk,input-processor-transform
- For swapping X/Y values, inverting a given Y or X value. Useful when a given input driver doesn't support these transforms and it may be installed rotated 90deg, etc.Input processors are tied to input listeners, with layer overrides, e.g.:
Smooth Scrolling
This also adds "smooth scrolling" support, by using HID "resolution multipliers", which appears to be supported in Linux and Windows, but not macOS. On macOS, we should be properly falling back to normal behavior here even with
CONFIG_ZMK_MOUSE_SMOOTH_SCROLLING=y
. More testing needed here.Split
This PR includes a second commit to add split input device support. You can see an example PR implementing a split Cirque controller at https://github.com/sadekbaroudi/zmk-fingerpunch-vik/pull/1
The key new driver here is behind the
zmk,input-split
compatible value. This driver has different modes based on being used on a split peripheral or central. When used on a peripheral, this acts as a listener for the specified input events on the referenced device, and forwards those events to the central (after some optional peripheral side input processing that can be used to clean up rotation, etc. beforehand). On the central, this driver registeres it's own input device, that should have a ZMK input listener added referencing it. The driver will receive the events from the peripheral and fire them locally for processing.Testing
So far, I've tested with mouse keys/scroll/move, and with a Cirque device. More testing all around! Existing generic Zephyr input devices should still "just work" with this PR.
To Do
/omit-if-no-ref/
.