概要

苦手な下位の学習を兼ねて、調べてみた
以下の環境で、各ソースコードの頭の部分を確認する（コピペ）

ubuntu# uname -r
4.4.0-96-generic
ubuntu# pwd
/usr/local/src/linux-4.12.7/drivers/input/keyboard
ubuntu# ls
Kconfig         cap11xx.c           imx_keypad.c       max7359_keypad.c      pxa930_rotary.c     sunkbd.c
Makefile        clps711x-keypad.c   ipaq-micro-keys.c  mcs_touchkey.c        qt1070.c            tc3589x-keypad.c
adc-keys.c      cros_ec_keyb.c      jornada680_kbd.c   mpr121_touchkey.c     qt2160.c            tca6416-keypad.c
adp5520-keys.c  davinci_keyscan.c   jornada720_kbd.c   newtonkbd.c           samsung-keypad.c    tca8418_keypad.c
adp5588-keys.c  ep93xx_keypad.c     lkkbd.c            nomadik-ske-keypad.c  sh_keysc.c          tegra-kbc.c
adp5589-keys.c  goldfish_events.c   lm8323.c           nspire-keypad.c       snvs_pwrkey.c       tm2-touchkey.c
amikbd.c        gpio_keys.c         lm8333.c           omap-keypad.c         spear-keyboard.c    twl4030_keypad.c
atakbd.c        gpio_keys_polled.c  locomokbd.c        omap4-keypad.c        st-keyscan.c        w90p910_keypad.c
atkbd.c         hil_kbd.c           lpc32xx-keys.c     opencores-kbd.c       stmpe-keypad.c      xtkbd.c
bcm-keypad.c    hilkbd.c            maple_keyb.c       pmic8xxx-keypad.c     stowaway.c
bf54x-keys.c    hpps2atkbd.h        matrix_keypad.c    pxa27x_keypad.c       sun4i-lradc-keys.c

一覧

ファイル名	作成元（組織or人）	概要	備考
mcs_touchkey.c	Samsung Electronics Co.Ltd	Touchkey driver for MELFAS MCS5000/5080 controller	melfas
adc-keys.c	Alexandre Belloni	Input driver for resistor ladder connected on ADC
adp5520-keys.c	Analog Devices Inc.	Keypad driver for Analog Devices ADP5520 MFD PMICs	ADP5520
adp5588-keys.c	Analog Devices Inc.	keypad driver for ADP5588 and ADP5587 I2C QWERTY Keypad and IO Expander	ADP5588
adp5589-keys.c	Analog Devices Inc	keypad driver for ADP5589, ADP5585 I2C QWERTY Keypad and IO Expander
amikbd.c	Vojtech Pavlik	Amiga keyboard driver for Linux/m68k
atakbd.c	Michael Schmitz	Atari keyboard driver for Linux/m68k
bcm-keypad.c	Broadcom Corporation
bf54x-keys.c	Michael Henneric	keypad driver for Analog Devices Blackfin BF54x Processors
cap11xx.c	Daniel Mack	Input driver for Microchip CAP11xx based capacitive touch sensors
clps711x-keypad.c	Alexander Shiyan	Cirrus Logic CLPS711X Keypad driver
cros_ec_keyb.c	Google, Inc	ChromeOS EC keyboard driver
davinci_keyscan.c	Texas Instruments, Inc	DaVinci Key Scan Driver for TI platforms
ep93xx_keypad.c	H Hartley Sweeten	Driver for the Cirrus EP93xx matrix keypad controller.
goldfish_events.c	Google, Inc., Intel, Inc.
gpio_keys.c	Phil Blundell, Copyright 2010, 2011	Driver for keys on GPIO lines capable of generating interrupts.
gpio_keys_polled.c	Gabor Juhos, Nuno Goncalves	Driver for buttons on GPIO lines not capable of generating interrupts
hil_kbd.c	Brian S. Julin	Generic linux-input device driver for keyboard devices
hilkbd.c	Philip Blundell	Very basic HP Human Interface Loop (HIL) driver.
hpps2atkbd.h	Helge Deller	HP PS/2 AT-compatible Keyboard, found in PA/RISC Workstations & Laptops
imx_keypad.c	Alberto Panizzo	Driver for the IMX keypad port.
ipaq-micro-keys.c	Alessandro Gardich	h3600 atmel micro companion support, key subdevice
jornada680_kbd.c	Kristoffer Ericson	HP Jornada 620/660/680/690 scan keyboard platform driver
jornada720_kbd.c	Kristoffer Ericson	HP Jornada 720 keyboard platform driver
lkkbd.c	Jan-Benedict Glaw	LK keyboard driver for Linux, based on sunkbd.c (C) by Vojtech Pavlik
lm8323.c	Nokia Corporation
lm8333.c	Wolfram Sang, Pengutronix	LM8333 keypad driver
locomokbd.c	John Lenz	LoCoMo keyboard driver for Linux-based ARM PDAs:
lpc32xx-keys.c	Kevin Wells	NXP LPC32xx SoC Key Scan Interface
maple_keyb.c	YAEGASHI Takeshi,	SEGA Dreamcast keyboard driver
matrix_keypad.c	Marek Vasut	GPIO driven matrix keyboard driver
max7359_keypad.c	Samsung Electronics	MAX7359 Key Switch Controller Driver
mpr121_touchkey.c	Freescale Semiconductor, Inc	Touchkey driver for Freescale MPR121 Controllor
newtonkbd.c	Justin Cormack	Newton keyboard driver for Linux
nomadik-ske-keypad.c	ST-Ericsson SA	Keypad controller driver for the SKE (Scroll Key Encoder) module used in the Nomadik 8815 and Ux500 platforms.
nspire-keypad.c	Daniel Tang
omap-keypad.c	Nokia Corporation	OMAP Keypad Driver
omap4-keypad.c	Texas Instruments	OMAP4 Keypad Driver
opencores-kbd.c	HV Sistemas S.L	OpenCores Keyboard Controller Driver
pmic8xxx-keypad.c	Code Aurora Forum
pxa27x_keypad.c	Rodolfo Giometti	Driver for the pxa27x matrix keyboard controller
pxa930_rotary.c		Driver for the enhanced rotary controller on pxa930 and pxa935
qt1070.c	Atmel	Atmel AT42QT1070 QTouch Sensor Controller
qt2160.c	Raphael Derosso Pereira	Atmel AT42QT2160 Touch Sense Controller
samsung-keypad.c	Samsung Electronics Co.Ltd	Samsung keypad driver
sh_keysc.c	Magnus Damm	SuperH KEYSC Keypad Driver
snvs_pwrkey.c	Freescale Semiconductor, Inc.	Driver for the IMX SNVS ON/OFF Power Key
spear-keyboard.c	ST Microelectronics	SPEAr Keyboard Driver
st-keyscan.c	STMicroelectonics Ltd.	STMicroelectronics Key Scanning driver
stmpe-keypad.c	ST-Ericsson SA
stowaway.c	Marek Vasut	Stowaway keyboard driver for Linux
sun4i-lradc-keys.c	Hans de Goede	Allwinner sun4i low res adc attached tablet keys driver
sunkbd.c	Vojtech Pavlik	Sun keyboard driver for Linux
tc3589x-keypad.c	ST-Ericsson SA	TC35893 MFD Keypad Controller driver
tca6416-keypad.c	Texas Instruments	Driver for keys on TCA6416 I2C IO expander
tca8418_keypad.c	Fuel7, Inc	Driver for TCA8418 I2C keyboard
tegra-kbc.c	NVIDIA Corporation	Keyboard class input driver for the NVIDIA Tegra SoC internal matrix keyboard controller
tm2-touchkey.c	Phil Blundell, Samsung Electronics Co., Ltd.	TM2 touchkey device driver
twl4030_keypad.c	Texas Instruments, Inc	driver for 8x8 keypad controller in twl4030 chips
w90p910_keypad.c	Nuvoton technology corporation
xtkbd.c	Vojtech Pavlik	XT keyboard driver for Linux