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Input: add support for polling to input devices

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Separating "normal" and "polled" input devices was a mistake, as often we
want to allow the very same device work on both interrupt-driven and
polled mode, depending on the board on which the device is used.

This introduces new APIs:

- input_setup_polling
- input_set_poll_interval
- input_set_min_poll_interval
- input_set_max_poll_interval

These new APIs allow switching an input device into polled mode with sysfs
attributes matching drivers using input_polled_dev APIs that will be
eventually removed.

Tested-by: Michal Vokáč <michal.vokac@ysoft.com>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Dmitry Torokhov
2017-04-18 17:28:30 -07:00
parent 2da9d2b5b9
commit e95656ea15
5 changed files with 273 additions and 8 deletions
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drivers/input/Makefile
+1 -1
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@@ -6,7 +6,7 @@
# Each configuration option enables a list of files.
obj-$(CONFIG_INPUT) += input-core.o
input-core-y := input.o input-compat.o input-mt.o ff-core.o
input-core-y := input.o input-compat.o input-mt.o input-poller.o ff-core.o
obj-$(CONFIG_INPUT_FF_MEMLESS) += ff-memless.o
obj-$(CONFIG_INPUT_POLLDEV) += input-polldev.o