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linux/drivers/input/keyboard/lkkbd.c
Erick Archer bb8706a419 Input: keyboard - use sizeof(*pointer) instead of sizeof(type) 
It is preferred to use sizeof(*pointer) instead of sizeof(type)
due to the type of the variable can change and one needs not
change the former (unlike the latter). This patch has no effect
on runtime behavior.

Signed-off-by: Erick Archer <erick.archer@outlook.com>
Link: https://lore.kernel.org/r/AS8PR02MB7237277464F23CA168BFB3B18BF52@AS8PR02MB7237.eurprd02.prod.outlook.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2024-06-02 21:32:01 -07:00

719 lines
17 KiB
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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
*/
/*
* LK keyboard driver for Linux, based on sunkbd.c (C) by Vojtech Pavlik
*/
/*
* DEC LK201 and LK401 keyboard driver for Linux (primary for DECstations
* and VAXstations, but can also be used on any standard RS232 with an
* adaptor).
*
* DISCLAIMER: This works for _me_. If you break anything by using the
* information given below, I will _not_ be liable!
*
* RJ10 pinout: To DE9: Or DB25:
* 1 - RxD <----> Pin 3 (TxD) <-> Pin 2 (TxD)
* 2 - GND <----> Pin 5 (GND) <-> Pin 7 (GND)
* 4 - TxD <----> Pin 2 (RxD) <-> Pin 3 (RxD)
* 3 - +12V (from HDD drive connector), DON'T connect to DE9 or DB25!!!
*
* Pin numbers for DE9 and DB25 are noted on the plug (quite small:). For
* RJ10, it's like this:
*
* __=__ Hold the plug in front of you, cable downwards,
* /___/| nose is hidden behind the plug. Now, pin 1 is at
* |1234|| the left side, pin 4 at the right and 2 and 3 are
* |IIII|| in between, of course:)
* | ||
* |____|/
* || So the adaptor consists of three connected cables
* || for data transmission (RxD and TxD) and signal ground.
* Additionally, you have to get +12V from somewhere.
* Most easily, you'll get that from a floppy or HDD power connector.
* It's the yellow cable there (black is ground and red is +5V).
*
* The keyboard and all the commands it understands are documented in
* "VCB02 Video Subsystem - Technical Manual", EK-104AA-TM-001. This
* document is LK201 specific, but LK401 is mostly compatible. It comes
* up in LK201 mode and doesn't report any of the additional keys it
* has. These need to be switched on with the LK_CMD_ENABLE_LK401
* command. You'll find this document (scanned .pdf file) on MANX,
* a search engine specific to DEC documentation. Try
* http://www.vt100.net/manx/details?pn=EK-104AA-TM-001;id=21;cp=1
*/
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/input.h>
#include <linux/serio.h>
#include <linux/workqueue.h>
#define DRIVER_DESC "LK keyboard driver"
MODULE_AUTHOR("Jan-Benedict Glaw <jbglaw@lug-owl.de>");
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
/*
* Known parameters:
* bell_volume
* keyclick_volume
* ctrlclick_volume
*
* Please notice that there's not yet an API to set these at runtime.
*/
static int bell_volume = 100; /* % */
module_param(bell_volume, int, 0);
MODULE_PARM_DESC(bell_volume, "Bell volume (in %). default is 100%");
static int keyclick_volume = 100; /* % */
module_param(keyclick_volume, int, 0);
MODULE_PARM_DESC(keyclick_volume, "Keyclick volume (in %), default is 100%");
static int ctrlclick_volume = 100; /* % */
module_param(ctrlclick_volume, int, 0);
MODULE_PARM_DESC(ctrlclick_volume, "Ctrlclick volume (in %), default is 100%");
static int lk201_compose_is_alt;
module_param(lk201_compose_is_alt, int, 0);
MODULE_PARM_DESC(lk201_compose_is_alt,
"If set non-zero, LK201' Compose key will act as an Alt key");
#undef LKKBD_DEBUG
#ifdef LKKBD_DEBUG
#define DBG(x...) printk(x)
#else
#define DBG(x...) do {} while (0)
#endif
/* LED control */
#define LK_LED_WAIT 0x81
#define LK_LED_COMPOSE 0x82
#define LK_LED_SHIFTLOCK 0x84
#define LK_LED_SCROLLLOCK 0x88
#define LK_CMD_LED_ON 0x13
#define LK_CMD_LED_OFF 0x11
/* Mode control */
#define LK_MODE_DOWN 0x80
#define LK_MODE_AUTODOWN 0x82
#define LK_MODE_UPDOWN 0x86
#define LK_CMD_SET_MODE(mode, div) ((mode) | ((div) << 3))
/* Misc commands */
#define LK_CMD_ENABLE_KEYCLICK 0x1b
#define LK_CMD_DISABLE_KEYCLICK 0x99
#define LK_CMD_DISABLE_BELL 0xa1
#define LK_CMD_SOUND_BELL 0xa7
#define LK_CMD_ENABLE_BELL 0x23
#define LK_CMD_DISABLE_CTRCLICK 0xb9
#define LK_CMD_ENABLE_CTRCLICK 0xbb
#define LK_CMD_SET_DEFAULTS 0xd3
#define LK_CMD_POWERCYCLE_RESET 0xfd
#define LK_CMD_ENABLE_LK401 0xe9
#define LK_CMD_REQUEST_ID 0xab
/* Misc responses from keyboard */
#define LK_STUCK_KEY 0x3d
#define LK_SELFTEST_FAILED 0x3e
#define LK_ALL_KEYS_UP 0xb3
#define LK_METRONOME 0xb4
#define LK_OUTPUT_ERROR 0xb5
#define LK_INPUT_ERROR 0xb6
#define LK_KBD_LOCKED 0xb7
#define LK_KBD_TEST_MODE_ACK 0xb8
#define LK_PREFIX_KEY_DOWN 0xb9
#define LK_MODE_CHANGE_ACK 0xba
#define LK_RESPONSE_RESERVED 0xbb
#define LK_NUM_KEYCODES 256
#define LK_NUM_IGNORE_BYTES 6
static unsigned short lkkbd_keycode[LK_NUM_KEYCODES] = {
[0x56] = KEY_F1,
[0x57] = KEY_F2,
[0x58] = KEY_F3,
[0x59] = KEY_F4,
[0x5a] = KEY_F5,
[0x64] = KEY_F6,
[0x65] = KEY_F7,
[0x66] = KEY_F8,
[0x67] = KEY_F9,
[0x68] = KEY_F10,
[0x71] = KEY_F11,
[0x72] = KEY_F12,
[0x73] = KEY_F13,
[0x74] = KEY_F14,
[0x7c] = KEY_F15,
[0x7d] = KEY_F16,
[0x80] = KEY_F17,
[0x81] = KEY_F18,
[0x82] = KEY_F19,
[0x83] = KEY_F20,
[0x8a] = KEY_FIND,
[0x8b] = KEY_INSERT,
[0x8c] = KEY_DELETE,
[0x8d] = KEY_SELECT,
[0x8e] = KEY_PAGEUP,
[0x8f] = KEY_PAGEDOWN,
[0x92] = KEY_KP0,
[0x94] = KEY_KPDOT,
[0x95] = KEY_KPENTER,
[0x96] = KEY_KP1,
[0x97] = KEY_KP2,
[0x98] = KEY_KP3,
[0x99] = KEY_KP4,
[0x9a] = KEY_KP5,
[0x9b] = KEY_KP6,
[0x9c] = KEY_KPCOMMA,
[0x9d] = KEY_KP7,
[0x9e] = KEY_KP8,
[0x9f] = KEY_KP9,
[0xa0] = KEY_KPMINUS,
[0xa1] = KEY_PROG1,
[0xa2] = KEY_PROG2,
[0xa3] = KEY_PROG3,
[0xa4] = KEY_PROG4,
[0xa7] = KEY_LEFT,
[0xa8] = KEY_RIGHT,
[0xa9] = KEY_DOWN,
[0xaa] = KEY_UP,
[0xab] = KEY_RIGHTSHIFT,
[0xac] = KEY_LEFTALT,
[0xad] = KEY_COMPOSE, /* Right Compose, that is. */
[0xae] = KEY_LEFTSHIFT, /* Same as KEY_RIGHTSHIFT on LK201 */
[0xaf] = KEY_LEFTCTRL,
[0xb0] = KEY_CAPSLOCK,
[0xb1] = KEY_COMPOSE, /* Left Compose, that is. */
[0xb2] = KEY_RIGHTALT,
[0xbc] = KEY_BACKSPACE,
[0xbd] = KEY_ENTER,
[0xbe] = KEY_TAB,
[0xbf] = KEY_ESC,
[0xc0] = KEY_1,
[0xc1] = KEY_Q,
[0xc2] = KEY_A,
[0xc3] = KEY_Z,
[0xc5] = KEY_2,
[0xc6] = KEY_W,
[0xc7] = KEY_S,
[0xc8] = KEY_X,
[0xc9] = KEY_102ND,
[0xcb] = KEY_3,
[0xcc] = KEY_E,
[0xcd] = KEY_D,
[0xce] = KEY_C,
[0xd0] = KEY_4,
[0xd1] = KEY_R,
[0xd2] = KEY_F,
[0xd3] = KEY_V,
[0xd4] = KEY_SPACE,
[0xd6] = KEY_5,
[0xd7] = KEY_T,
[0xd8] = KEY_G,
[0xd9] = KEY_B,
[0xdb] = KEY_6,
[0xdc] = KEY_Y,
[0xdd] = KEY_H,
[0xde] = KEY_N,
[0xe0] = KEY_7,
[0xe1] = KEY_U,
[0xe2] = KEY_J,
[0xe3] = KEY_M,
[0xe5] = KEY_8,
[0xe6] = KEY_I,
[0xe7] = KEY_K,
[0xe8] = KEY_COMMA,
[0xea] = KEY_9,
[0xeb] = KEY_O,
[0xec] = KEY_L,
[0xed] = KEY_DOT,
[0xef] = KEY_0,
[0xf0] = KEY_P,
[0xf2] = KEY_SEMICOLON,
[0xf3] = KEY_SLASH,
[0xf5] = KEY_EQUAL,
[0xf6] = KEY_RIGHTBRACE,
[0xf7] = KEY_BACKSLASH,
[0xf9] = KEY_MINUS,
[0xfa] = KEY_LEFTBRACE,
[0xfb] = KEY_APOSTROPHE,
};
#define CHECK_LED(LK, VAR_ON, VAR_OFF, LED, BITS) do { \
if (test_bit(LED, (LK)->dev->led)) \
VAR_ON |= BITS; \
else \
VAR_OFF |= BITS; \
} while (0)
/*
* Per-keyboard data
*/
struct lkkbd {
unsigned short keycode[LK_NUM_KEYCODES];
int ignore_bytes;
unsigned char id[LK_NUM_IGNORE_BYTES];
struct input_dev *dev;
struct serio *serio;
struct work_struct tq;
char name[64];
char phys[32];
char type;
int bell_volume;
int keyclick_volume;
int ctrlclick_volume;
};
#ifdef LKKBD_DEBUG
/*
* Responses from the keyboard and mapping back to their names.
*/
static struct {
unsigned char value;
unsigned char *name;
} lk_response[] = {
#define RESPONSE(x) { .value = (x), .name = #x, }
RESPONSE(LK_STUCK_KEY),
RESPONSE(LK_SELFTEST_FAILED),
RESPONSE(LK_ALL_KEYS_UP),
RESPONSE(LK_METRONOME),
RESPONSE(LK_OUTPUT_ERROR),
RESPONSE(LK_INPUT_ERROR),
RESPONSE(LK_KBD_LOCKED),
RESPONSE(LK_KBD_TEST_MODE_ACK),
RESPONSE(LK_PREFIX_KEY_DOWN),
RESPONSE(LK_MODE_CHANGE_ACK),
RESPONSE(LK_RESPONSE_RESERVED),
#undef RESPONSE
};
static unsigned char *response_name(unsigned char value)
{
int i;
for (i = 0; i < ARRAY_SIZE(lk_response); i++)
if (lk_response[i].value == value)
return lk_response[i].name;
return "<unknown>";
}
#endif /* LKKBD_DEBUG */
/*
* Calculate volume parameter byte for a given volume.
*/
static unsigned char volume_to_hw(int volume_percent)
{
unsigned char ret = 0;
if (volume_percent < 0)
volume_percent = 0;
if (volume_percent > 100)
volume_percent = 100;
if (volume_percent >= 0)
ret = 7;
if (volume_percent >= 13) /* 12.5 */
ret = 6;
if (volume_percent >= 25)
ret = 5;
if (volume_percent >= 38) /* 37.5 */
ret = 4;
if (volume_percent >= 50)
ret = 3;
if (volume_percent >= 63) /* 62.5 */
ret = 2; /* This is the default volume */
if (volume_percent >= 75)
ret = 1;
if (volume_percent >= 88) /* 87.5 */
ret = 0;
ret |= 0x80;
return ret;
}
static void lkkbd_detection_done(struct lkkbd *lk)
{
int i;
/*
* Reset setting for Compose key. Let Compose be KEY_COMPOSE.
*/
lk->keycode[0xb1] = KEY_COMPOSE;
/*
* Print keyboard name and modify Compose=Alt on user's request.
*/
switch (lk->id[4]) {
case 1:
strscpy(lk->name, "DEC LK201 keyboard", sizeof(lk->name));
if (lk201_compose_is_alt)
lk->keycode[0xb1] = KEY_LEFTALT;
break;
case 2:
strscpy(lk->name, "DEC LK401 keyboard", sizeof(lk->name));
break;
default:
strscpy(lk->name, "Unknown DEC keyboard", sizeof(lk->name));
printk(KERN_ERR
"lkkbd: keyboard on %s is unknown, please report to "
"Jan-Benedict Glaw <jbglaw@lug-owl.de>\n", lk->phys);
printk(KERN_ERR "lkkbd: keyboard ID'ed as:");
for (i = 0; i < LK_NUM_IGNORE_BYTES; i++)
printk(" 0x%02x", lk->id[i]);
printk("\n");
break;
}
printk(KERN_INFO "lkkbd: keyboard on %s identified as: %s\n",
lk->phys, lk->name);
/*
* Report errors during keyboard boot-up.
*/
switch (lk->id[2]) {
case 0x00:
/* All okay */
break;
case LK_STUCK_KEY:
printk(KERN_ERR "lkkbd: Stuck key on keyboard at %s\n",
lk->phys);
break;
case LK_SELFTEST_FAILED:
printk(KERN_ERR
"lkkbd: Selftest failed on keyboard at %s, "
"keyboard may not work properly\n", lk->phys);
break;
default:
printk(KERN_ERR
"lkkbd: Unknown error %02x on keyboard at %s\n",
lk->id[2], lk->phys);
break;
}
/*
* Try to hint user if there's a stuck key.
*/
if (lk->id[2] == LK_STUCK_KEY && lk->id[3] != 0)
printk(KERN_ERR
"Scancode of stuck key is 0x%02x, keycode is 0x%04x\n",
lk->id[3], lk->keycode[lk->id[3]]);
}
/*
* lkkbd_interrupt() is called by the low level driver when a character
* is received.
*/
static irqreturn_t lkkbd_interrupt(struct serio *serio,
unsigned char data, unsigned int flags)
{
struct lkkbd *lk = serio_get_drvdata(serio);
struct input_dev *input_dev = lk->dev;
unsigned int keycode;
int i;
DBG(KERN_INFO "Got byte 0x%02x\n", data);
if (lk->ignore_bytes > 0) {
DBG(KERN_INFO "Ignoring a byte on %s\n", lk->name);
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
if (lk->ignore_bytes == 0)
lkkbd_detection_done(lk);
return IRQ_HANDLED;
}
switch (data) {
case LK_ALL_KEYS_UP:
for (i = 0; i < ARRAY_SIZE(lkkbd_keycode); i++)
input_report_key(input_dev, lk->keycode[i], 0);
input_sync(input_dev);
break;
case 0x01:
DBG(KERN_INFO "Got 0x01, scheduling re-initialization\n");
lk->ignore_bytes = LK_NUM_IGNORE_BYTES;
lk->id[LK_NUM_IGNORE_BYTES - lk->ignore_bytes--] = data;
schedule_work(&lk->tq);
break;
case LK_METRONOME:
case LK_OUTPUT_ERROR:
case LK_INPUT_ERROR:
case LK_KBD_LOCKED:
case LK_KBD_TEST_MODE_ACK:
case LK_PREFIX_KEY_DOWN:
case LK_MODE_CHANGE_ACK:
case LK_RESPONSE_RESERVED:
DBG(KERN_INFO "Got %s and don't know how to handle...\n",
response_name(data));
break;
default:
keycode = lk->keycode[data];
if (keycode != KEY_RESERVED) {
input_report_key(input_dev, keycode,
!test_bit(keycode, input_dev->key));
input_sync(input_dev);
} else {
printk(KERN_WARNING
"%s: Unknown key with scancode 0x%02x on %s.\n",
__FILE__, data, lk->name);
}
}
return IRQ_HANDLED;
}
static void lkkbd_toggle_leds(struct lkkbd *lk)
{
struct serio *serio = lk->serio;
unsigned char leds_on = 0;
unsigned char leds_off = 0;
CHECK_LED(lk, leds_on, leds_off, LED_CAPSL, LK_LED_SHIFTLOCK);
CHECK_LED(lk, leds_on, leds_off, LED_COMPOSE, LK_LED_COMPOSE);
CHECK_LED(lk, leds_on, leds_off, LED_SCROLLL, LK_LED_SCROLLLOCK);
CHECK_LED(lk, leds_on, leds_off, LED_SLEEP, LK_LED_WAIT);
if (leds_on != 0) {
serio_write(serio, LK_CMD_LED_ON);
serio_write(serio, leds_on);
}
if (leds_off != 0) {
serio_write(serio, LK_CMD_LED_OFF);
serio_write(serio, leds_off);
}
}
static void lkkbd_toggle_keyclick(struct lkkbd *lk, bool on)
{
struct serio *serio = lk->serio;
if (on) {
DBG("%s: Activating key clicks\n", __func__);
serio_write(serio, LK_CMD_ENABLE_KEYCLICK);
serio_write(serio, volume_to_hw(lk->keyclick_volume));
serio_write(serio, LK_CMD_ENABLE_CTRCLICK);
serio_write(serio, volume_to_hw(lk->ctrlclick_volume));
} else {
DBG("%s: Deactivating key clicks\n", __func__);
serio_write(serio, LK_CMD_DISABLE_KEYCLICK);
serio_write(serio, LK_CMD_DISABLE_CTRCLICK);
}
}
/*
* lkkbd_event() handles events from the input module.
*/
static int lkkbd_event(struct input_dev *dev,
unsigned int type, unsigned int code, int value)
{
struct lkkbd *lk = input_get_drvdata(dev);
switch (type) {
case EV_LED:
lkkbd_toggle_leds(lk);
return 0;
case EV_SND:
switch (code) {
case SND_CLICK:
lkkbd_toggle_keyclick(lk, value);
return 0;
case SND_BELL:
if (value != 0)
serio_write(lk->serio, LK_CMD_SOUND_BELL);
return 0;
}
break;
default:
printk(KERN_ERR "%s(): Got unknown type %d, code %d, value %d\n",
__func__, type, code, value);
}
return -1;
}
/*
* lkkbd_reinit() sets leds and beeps to a state the computer remembers they
* were in.
*/
static void lkkbd_reinit(struct work_struct *work)
{
struct lkkbd *lk = container_of(work, struct lkkbd, tq);
int division;
/* Ask for ID */
serio_write(lk->serio, LK_CMD_REQUEST_ID);
/* Reset parameters */
serio_write(lk->serio, LK_CMD_SET_DEFAULTS);
/* Set LEDs */
lkkbd_toggle_leds(lk);
/*
* Try to activate extended LK401 mode. This command will
* only work with a LK401 keyboard and grants access to
* LAlt, RAlt, RCompose and RShift.
*/
serio_write(lk->serio, LK_CMD_ENABLE_LK401);
/* Set all keys to UPDOWN mode */
for (division = 1; division <= 14; division++)
serio_write(lk->serio,
LK_CMD_SET_MODE(LK_MODE_UPDOWN, division));
/* Enable bell and set volume */
serio_write(lk->serio, LK_CMD_ENABLE_BELL);
serio_write(lk->serio, volume_to_hw(lk->bell_volume));
/* Enable/disable keyclick (and possibly set volume) */
lkkbd_toggle_keyclick(lk, test_bit(SND_CLICK, lk->dev->snd));
/* Sound the bell if needed */
if (test_bit(SND_BELL, lk->dev->snd))
serio_write(lk->serio, LK_CMD_SOUND_BELL);
}
/*
* lkkbd_connect() probes for a LK keyboard and fills the necessary structures.
*/
static int lkkbd_connect(struct serio *serio, struct serio_driver *drv)
{
struct lkkbd *lk;
struct input_dev *input_dev;
int i;
int err;
lk = kzalloc(sizeof(*lk), GFP_KERNEL);
input_dev = input_allocate_device();
if (!lk || !input_dev) {
err = -ENOMEM;
goto fail1;
}
lk->serio = serio;
lk->dev = input_dev;
INIT_WORK(&lk->tq, lkkbd_reinit);
lk->bell_volume = bell_volume;
lk->keyclick_volume = keyclick_volume;
lk->ctrlclick_volume = ctrlclick_volume;
memcpy(lk->keycode, lkkbd_keycode, sizeof(lk->keycode));
strscpy(lk->name, "DEC LK keyboard", sizeof(lk->name));
snprintf(lk->phys, sizeof(lk->phys), "%s/input0", serio->phys);
input_dev->name = lk->name;
input_dev->phys = lk->phys;
input_dev->id.bustype = BUS_RS232;
input_dev->id.vendor = SERIO_LKKBD;
input_dev->id.product = 0;
input_dev->id.version = 0x0100;
input_dev->dev.parent = &serio->dev;
input_dev->event = lkkbd_event;
input_set_drvdata(input_dev, lk);
__set_bit(EV_KEY, input_dev->evbit);
__set_bit(EV_LED, input_dev->evbit);
__set_bit(EV_SND, input_dev->evbit);
__set_bit(EV_REP, input_dev->evbit);
__set_bit(LED_CAPSL, input_dev->ledbit);
__set_bit(LED_SLEEP, input_dev->ledbit);
__set_bit(LED_COMPOSE, input_dev->ledbit);
__set_bit(LED_SCROLLL, input_dev->ledbit);
__set_bit(SND_BELL, input_dev->sndbit);
__set_bit(SND_CLICK, input_dev->sndbit);
input_dev->keycode = lk->keycode;
input_dev->keycodesize = sizeof(lk->keycode[0]);
input_dev->keycodemax = ARRAY_SIZE(lk->keycode);
for (i = 0; i < LK_NUM_KEYCODES; i++)
__set_bit(lk->keycode[i], input_dev->keybit);
__clear_bit(KEY_RESERVED, input_dev->keybit);
serio_set_drvdata(serio, lk);
err = serio_open(serio, drv);
if (err)
goto fail2;
err = input_register_device(lk->dev);
if (err)
goto fail3;
serio_write(lk->serio, LK_CMD_POWERCYCLE_RESET);
return 0;
fail3: serio_close(serio);
fail2: serio_set_drvdata(serio, NULL);
fail1: input_free_device(input_dev);
kfree(lk);
return err;
}
/*
* lkkbd_disconnect() unregisters and closes behind us.
*/
static void lkkbd_disconnect(struct serio *serio)
{
struct lkkbd *lk = serio_get_drvdata(serio);
input_get_device(lk->dev);
input_unregister_device(lk->dev);
serio_close(serio);
serio_set_drvdata(serio, NULL);
input_put_device(lk->dev);
kfree(lk);
}
static const struct serio_device_id lkkbd_serio_ids[] = {
{
.type = SERIO_RS232,
.proto = SERIO_LKKBD,
.id = SERIO_ANY,
.extra = SERIO_ANY,
},
{ 0 }
};
MODULE_DEVICE_TABLE(serio, lkkbd_serio_ids);
static struct serio_driver lkkbd_drv = {
.driver = {
.name = "lkkbd",
},
.description = DRIVER_DESC,
.id_table = lkkbd_serio_ids,
.connect = lkkbd_connect,
.disconnect = lkkbd_disconnect,
.interrupt = lkkbd_interrupt,
};
module_serio_driver(lkkbd_drv);
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