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/*
* $Id: hid-input.c,v 1.1 2004-09-13 15:04:47 giacomo Exp $
*
* Copyright (c) 2000-2001 Vojtech Pavlik
*
* USB HID to Linux Input mapping
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <linuxcomp.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/input.h>
#include <linux/usb.h>
#include "hid.h"
#define unk KEY_UNKNOWN
static unsigned char hid_keyboard
[256] = {
0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
27, 43, 84, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
72, 73, 82, 83, 86,127,116,117, 85, 89, 90, 91, 92, 93, 94, 95,
120,121,122,123,134,138,130,132,128,129,131,137,133,135,136,113,
115,114,unk
,unk
,unk
,124,unk
,181,182,183,184,185,186,187,188,189,
190,191,192,193,194,195,196,197,198,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,unk
,
29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
150,158,159,128,136,177,178,176,142,152,173,140,unk
,unk
,unk
,unk
};
static struct {
__s32 x
;
__s32 y
;
} hid_hat_to_axis
[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
static struct input_dev
*find_input
(struct hid_device
*hid
, struct hid_field
*field
)
{
struct list_head
*lh
;
struct hid_input
*hidinput
;
list_for_each
(lh
, &hid
->inputs
) {
int i
;
hidinput
= list_entry
(lh
, struct hid_input
, list
);
if (! hidinput
->report
)
continue;
for (i
= 0; i
< hidinput
->report
->maxfield
; i
++)
if (hidinput
->report
->field
[i
] == field
)
return &hidinput
->input
;
}
/* Assume we only have one input and use it */
if (!list_empty
(&hid
->inputs
)) {
hidinput
= list_entry
(hid
->inputs.
next, struct hid_input
, list
);
return &hidinput
->input
;
}
/* This is really a bug */
return NULL
;
}
static void hidinput_configure_usage
(struct hid_input
*hidinput
, struct hid_field
*field
,
struct hid_usage
*usage
)
{
struct input_dev
*input
= &hidinput
->input
;
struct hid_device
*device
= hidinput
->input.
private;
int max
;
int is_abs
= 0;
unsigned long *bit
;
switch (usage
->hid
& HID_USAGE_PAGE
) {
case HID_UP_KEYBOARD
:
set_bit
(EV_REP
, input
->evbit
);
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
if ((usage
->hid
& HID_USAGE
) < 256) {
if (!(usage
->code
= hid_keyboard
[usage
->hid
& HID_USAGE
]))
return;
clear_bit
(usage
->code
, bit
);
} else
usage
->code
= KEY_UNKNOWN
;
break;
case HID_UP_BUTTON
:
usage
->code
= ((usage
->hid
- 1) & 0xf) + 0x100;
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
switch (field
->application
) {
case HID_GD_GAMEPAD
: usage
->code
+= 0x10;
case HID_GD_JOYSTICK
: usage
->code
+= 0x10;
case HID_GD_MOUSE
: usage
->code
+= 0x10; break;
default:
if (field
->physical
== HID_GD_POINTER
)
usage
->code
+= 0x10;
break;
}
break;
case HID_UP_GENDESK
:
if ((usage
->hid
& 0xf0) == 0x80) { /* SystemControl */
switch (usage
->hid
& 0xf) {
case 0x1: usage
->code
= KEY_POWER
; break;
case 0x2: usage
->code
= KEY_SLEEP
; break;
case 0x3: usage
->code
= KEY_WAKEUP
; break;
default: usage
->code
= KEY_UNKNOWN
; break;
}
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
break;
}
usage
->code
= usage
->hid
& 0xf;
if (field
->report_size
== 1) {
usage
->code
= BTN_MISC
;
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
break;
}
if (field
->flags
& HID_MAIN_ITEM_RELATIVE
) {
usage
->type
= EV_REL
; bit
= input
->relbit
; max
= REL_MAX
;
break;
}
usage
->type
= EV_ABS
; bit
= input
->absbit
; max
= ABS_MAX
;
if (usage
->hid
== HID_GD_HATSWITCH
) {
usage
->code
= ABS_HAT0X
;
usage
->hat_min
= field
->logical_minimum
;
usage
->hat_max
= field
->logical_maximum
;
}
break;
case HID_UP_LED
:
usage
->code
= (usage
->hid
- 1) & 0xf;
usage
->type
= EV_LED
; bit
= input
->ledbit
; max
= LED_MAX
;
break;
case HID_UP_DIGITIZER
:
switch (usage
->hid
& 0xff) {
case 0x30: /* TipPressure */
if (!test_bit
(BTN_TOUCH
, input
->keybit
)) {
device
->quirks
|= HID_QUIRK_NOTOUCH
;
set_bit
(EV_KEY
, input
->evbit
);
set_bit
(BTN_TOUCH
, input
->keybit
);
}
usage
->type
= EV_ABS
; bit
= input
->absbit
; max
= ABS_MAX
;
usage
->code
= ABS_PRESSURE
;
clear_bit
(usage
->code
, bit
);
break;
case 0x32: /* InRange */
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
switch (field
->physical
& 0xff) {
case 0x21: usage
->code
= BTN_TOOL_MOUSE
; break;
case 0x22: usage
->code
= BTN_TOOL_FINGER
; break;
default: usage
->code
= BTN_TOOL_PEN
; break;
}
break;
case 0x3c: /* Invert */
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
usage
->code
= BTN_TOOL_RUBBER
;
clear_bit
(usage
->code
, bit
);
break;
case 0x33: /* Touch */
case 0x42: /* TipSwitch */
case 0x43: /* TipSwitch2 */
device
->quirks
&= ~HID_QUIRK_NOTOUCH
;
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
usage
->code
= BTN_TOUCH
;
clear_bit
(usage
->code
, bit
);
break;
case 0x44: /* BarrelSwitch */
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
usage
->code
= BTN_STYLUS
;
clear_bit
(usage
->code
, bit
);
break;
default: goto unknown
;
}
break;
case HID_UP_CONSUMER
: /* USB HUT v1.1, pages 56-62 */
set_bit
(EV_REP
, input
->evbit
);
switch (usage
->hid
& HID_USAGE
) {
case 0x000: usage
->code
= 0; break;
case 0x034: usage
->code
= KEY_SLEEP
; break;
case 0x036: usage
->code
= BTN_MISC
; break;
case 0x08a: usage
->code
= KEY_WWW
; break;
case 0x095: usage
->code
= KEY_HELP
; break;
case 0x0b0: usage
->code
= KEY_PLAY
; break;
case 0x0b1: usage
->code
= KEY_PAUSE
; break;
case 0x0b2: usage
->code
= KEY_RECORD
; break;
case 0x0b3: usage
->code
= KEY_FASTFORWARD
; break;
case 0x0b4: usage
->code
= KEY_REWIND
; break;
case 0x0b5: usage
->code
= KEY_NEXTSONG
; break;
case 0x0b6: usage
->code
= KEY_PREVIOUSSONG
; break;
case 0x0b7: usage
->code
= KEY_STOPCD
; break;
case 0x0b8: usage
->code
= KEY_EJECTCD
; break;
case 0x0cd: usage
->code
= KEY_PLAYPAUSE
; break;
case 0x0e0: is_abs
= 1;
usage
->code
= ABS_VOLUME
;
break;
case 0x0e2: usage
->code
= KEY_MUTE
; break;
case 0x0e5: usage
->code
= KEY_BASSBOOST
; break;
case 0x0e9: usage
->code
= KEY_VOLUMEUP
; break;
case 0x0ea: usage
->code
= KEY_VOLUMEDOWN
; break;
case 0x183: usage
->code
= KEY_CONFIG
; break;
case 0x18a: usage
->code
= KEY_MAIL
; break;
case 0x192: usage
->code
= KEY_CALC
; break;
case 0x194: usage
->code
= KEY_FILE
; break;
case 0x21a: usage
->code
= KEY_UNDO
; break;
case 0x21b: usage
->code
= KEY_COPY
; break;
case 0x21c: usage
->code
= KEY_CUT
; break;
case 0x21d: usage
->code
= KEY_PASTE
; break;
case 0x221: usage
->code
= KEY_FIND
; break;
case 0x223: usage
->code
= KEY_HOMEPAGE
; break;
case 0x224: usage
->code
= KEY_BACK
; break;
case 0x225: usage
->code
= KEY_FORWARD
; break;
case 0x226: usage
->code
= KEY_STOP
; break;
case 0x227: usage
->code
= KEY_REFRESH
; break;
case 0x22a: usage
->code
= KEY_BOOKMARKS
; break;
default: usage
->code
= KEY_UNKNOWN
; break;
}
if (is_abs
) {
usage
->type
= EV_ABS
; bit
= input
->absbit
; max
= ABS_MAX
;
} else {
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
}
break;
case HID_UP_HPVENDOR
: /* Reported on a Dutch layout HP5308 */
set_bit
(EV_REP
, input
->evbit
);
switch (usage
->hid
& HID_USAGE
) {
case 0x021: usage
->code
= KEY_PRINT
; break;
case 0x070: usage
->code
= KEY_HP
; break;
case 0x071: usage
->code
= KEY_CAMERA
; break;
case 0x072: usage
->code
= KEY_SOUND
; break;
case 0x073: usage
->code
= KEY_QUESTION
; break;
case 0x080: usage
->code
= KEY_EMAIL
; break;
case 0x081: usage
->code
= KEY_CHAT
; break;
case 0x082: usage
->code
= KEY_SEARCH
; break;
case 0x083: usage
->code
= KEY_CONNECT
; break;
case 0x084: usage
->code
= KEY_FINANCE
; break;
case 0x085: usage
->code
= KEY_SPORT
; break;
case 0x086: usage
->code
= KEY_SHOP
; break;
default: usage
->code
= KEY_UNKNOWN
; break;
}
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
break;
case HID_UP_PID
:
usage
->type
= EV_FF
; bit
= input
->ffbit
; max
= FF_MAX
;
switch(usage
->hid
& HID_USAGE
) {
case 0x26: set_bit
(FF_CONSTANT
, input
->ffbit
); break;
case 0x27: set_bit
(FF_RAMP
, input
->ffbit
); break;
case 0x28: set_bit
(FF_CUSTOM
, input
->ffbit
); break;
case 0x30: set_bit
(FF_SQUARE
, input
->ffbit
);
set_bit
(FF_PERIODIC
, input
->ffbit
); break;
case 0x31: set_bit
(FF_SINE
, input
->ffbit
);
set_bit
(FF_PERIODIC
, input
->ffbit
); break;
case 0x32: set_bit
(FF_TRIANGLE
, input
->ffbit
);
set_bit
(FF_PERIODIC
, input
->ffbit
); break;
case 0x33: set_bit
(FF_SAW_UP
, input
->ffbit
);
set_bit
(FF_PERIODIC
, input
->ffbit
); break;
case 0x34: set_bit
(FF_SAW_DOWN
, input
->ffbit
);
set_bit
(FF_PERIODIC
, input
->ffbit
); break;
case 0x40: set_bit
(FF_SPRING
, input
->ffbit
); break;
case 0x41: set_bit
(FF_DAMPER
, input
->ffbit
); break;
case 0x42: set_bit
(FF_INERTIA
, input
->ffbit
); break;
case 0x43: set_bit
(FF_FRICTION
, input
->ffbit
); break;
case 0x7e: usage
->code
= FF_GAIN
; break;
case 0x83: /* Simultaneous Effects Max */
input
->ff_effects_max
= (field
->value
[0]);
dbg
("Maximum Effects - %d",input
->ff_effects_max
);
break;
case 0x98: /* Device Control */
usage
->code
= FF_AUTOCENTER
; break;
case 0xa4: /* Safety Switch */
usage
->code
= BTN_DEAD
;
bit
= input
->keybit
;
usage
->type
= EV_KEY
;
max
= KEY_MAX
;
dbg
("Safety Switch Report\n");
break;
case 0x9f: /* Device Paused */
case 0xa0: /* Actuators Enabled */
dbg
("Not telling the input API about ");
resolv_usage
(usage
->hid
);
return;
}
break;
default:
unknown
:
resolv_usage
(usage
->hid
);
if (field
->report_size
== 1) {
if (field
->report
->type
== HID_OUTPUT_REPORT
) {
usage
->code
= LED_MISC
;
usage
->type
= EV_LED
; bit
= input
->ledbit
; max
= LED_MAX
;
break;
}
usage
->code
= BTN_MISC
;
usage
->type
= EV_KEY
; bit
= input
->keybit
; max
= KEY_MAX
;
break;
}
if (field
->flags
& HID_MAIN_ITEM_RELATIVE
) {
usage
->code
= REL_MISC
;
usage
->type
= EV_REL
; bit
= input
->relbit
; max
= REL_MAX
;
break;
}
usage
->code
= ABS_MISC
;
usage
->type
= EV_ABS
; bit
= input
->absbit
; max
= ABS_MAX
;
break;
}
set_bit
(usage
->type
, input
->evbit
);
if ((usage
->type
== EV_REL
)
&& (device
->quirks
& HID_QUIRK_2WHEEL_MOUSE_HACK
)
&& (usage
->code
== REL_WHEEL
)) {
set_bit
(REL_HWHEEL
, bit
);
}
while (usage
->code
<= max
&& test_and_set_bit
(usage
->code
, bit
)) {
usage
->code
= find_next_zero_bit
(bit
, max
+ 1, usage
->code
);
}
if (usage
->code
> max
)
return;
if (usage
->type
== EV_ABS
) {
int a
= field
->logical_minimum
;
int b
= field
->logical_maximum
;
if ((device
->quirks
& HID_QUIRK_BADPAD
) && (usage
->code
== ABS_X
|| usage
->code
== ABS_Y
)) {
a
= field
->logical_minimum
= 0;
b
= field
->logical_maximum
= 255;
}
input
->absmin
[usage
->code
] = a
;
input
->absmax
[usage
->code
] = b
;
input
->absfuzz
[usage
->code
] = 0;
input
->absflat
[usage
->code
] = 0;
if (field
->application
== HID_GD_GAMEPAD
|| field
->application
== HID_GD_JOYSTICK
) {
input
->absfuzz
[usage
->code
] = (b
- a
) >> 8;
input
->absflat
[usage
->code
] = (b
- a
) >> 4;
}
}
if (usage
->hat_min
!= usage
->hat_max
) {
int i
;
for (i
= usage
->code
; i
< usage
->code
+ 2 && i
<= max
; i
++) {
input
->absmax
[i
] = 1;
input
->absmin
[i
] = -1;
input
->absfuzz
[i
] = 0;
input
->absflat
[i
] = 0;
}
set_bit
(usage
->code
+ 1, input
->absbit
);
}
}
void hidinput_hid_event
(struct hid_device
*hid
, struct hid_field
*field
, struct hid_usage
*usage
, __s32 value
, struct pt_regs
*regs
)
{
struct input_dev
*input
= find_input
(hid
, field
);
int *quirks
= &hid
->quirks
;
if (!input
)
return;
input_regs
(input
, regs
);
if ((hid
->quirks
& HID_QUIRK_2WHEEL_MOUSE_HACK
)
&& (usage
->code
== BTN_BACK
)) {
if (value
)
hid
->quirks
|= HID_QUIRK_2WHEEL_MOUSE_HACK_ON
;
else
hid
->quirks
&= ~HID_QUIRK_2WHEEL_MOUSE_HACK_ON
;
return;
}
if ((hid
->quirks
& HID_QUIRK_2WHEEL_MOUSE_HACK_ON
)
&& (usage
->code
== REL_WHEEL
)) {
input_event
(input
, usage
->type
, REL_HWHEEL
, value
);
return;
}
if (usage
->hat_min
!= usage
->hat_max
) {
value
= (value
- usage
->hat_min
) * 8 / (usage
->hat_max
- usage
->hat_min
+ 1) + 1;
if (value
< 0 || value
> 8) value
= 0;
input_event
(input
, usage
->type
, usage
->code
, hid_hat_to_axis
[value
].
x);
input_event
(input
, usage
->type
, usage
->code
+ 1, hid_hat_to_axis
[value
].
y);
return;
}
if (usage
->hid
== (HID_UP_DIGITIZER
| 0x003c)) { /* Invert */
*quirks
= value
? (*quirks
| HID_QUIRK_INVERT
) : (*quirks
& ~HID_QUIRK_INVERT
);
return;
}
if (usage
->hid
== (HID_UP_DIGITIZER
| 0x0032)) { /* InRange */
if (value
) {
input_event
(input
, usage
->type
, (*quirks
& HID_QUIRK_INVERT
) ? BTN_TOOL_RUBBER
: usage
->code
, 1);
return;
}
input_event
(input
, usage
->type
, usage
->code
, 0);
input_event
(input
, usage
->type
, BTN_TOOL_RUBBER
, 0);
return;
}
if (usage
->hid
== (HID_UP_DIGITIZER
| 0x0030) && (*quirks
& HID_QUIRK_NOTOUCH
)) { /* Pressure */
int a
= field
->logical_minimum
;
int b
= field
->logical_maximum
;
input_event
(input
, EV_KEY
, BTN_TOUCH
, value
> a
+ ((b
- a
) >> 3));
}
if (usage
->hid
== (HID_UP_PID
| 0x83UL
)) { /* Simultaneous Effects Max */
input
->ff_effects_max
= value
;
dbg
("Maximum Effects - %d",input
->ff_effects_max
);
return;
}
if (usage
->hid
== (HID_UP_PID
| 0x7fUL
)) {
dbg
("PID Pool Report\n");
return;
}
if((usage
->type
== EV_KEY
) && (usage
->code
== 0)) /* Key 0 is "unassigned", not KEY_UKNOWN */
return;
input_event
(input
, usage
->type
, usage
->code
, value
);
if ((field
->flags
& HID_MAIN_ITEM_RELATIVE
) && (usage
->type
== EV_KEY
))
input_event
(input
, usage
->type
, usage
->code
, 0);
}
void hidinput_report_event
(struct hid_device
*hid
, struct hid_report
*report
)
{
struct list_head
*lh
;
struct hid_input
*hidinput
;
list_for_each
(lh
, &hid
->inputs
) {
hidinput
= list_entry
(lh
, struct hid_input
, list
);
input_sync
(&hidinput
->input
);
}
}
static int hidinput_input_event
(struct input_dev
*dev
, unsigned int type
, unsigned int code
, int value
)
{
struct hid_device
*hid
= dev
->private
;
struct hid_field
*field
= NULL
;
int offset
;
if (type
== EV_FF
)
return hid_ff_event
(hid
, dev
, type
, code
, value
);
if ((offset
= hid_find_field
(hid
, type
, code
, &field
)) == -1) {
warn
("event field not found");
return -1;
}
hid_set_field
(field
, offset
, value
);
hid_submit_report
(hid
, field
->report
, USB_DIR_OUT
);
return 0;
}
static int hidinput_open
(struct input_dev
*dev
)
{
struct hid_device
*hid
= dev
->private
;
return hid_open
(hid
);
}
static void hidinput_close
(struct input_dev
*dev
)
{
struct hid_device
*hid
= dev
->private
;
hid_close
(hid
);
}
/*
* Register the input device; print a message.
* Configure the input layer interface
* Read all reports and initialize the absolute field values.
*/
int hidinput_connect
(struct hid_device
*hid
)
{
struct usb_device
*dev
= hid
->dev
;
struct hid_report_enum
*report_enum
;
struct hid_report
*report
;
struct list_head
*list
;
struct hid_input
*hidinput
= NULL
;
int i
, j
, k
;
INIT_LIST_HEAD
(&hid
->inputs
);
for (i
= 0; i
< hid
->maxcollection
; i
++)
if (hid
->collection
[i
].
type == HID_COLLECTION_APPLICATION
&&
IS_INPUT_APPLICATION
(hid
->collection
[i
].
usage))
break;
if (i
== hid
->maxcollection
)
return -1;
for (k
= HID_INPUT_REPORT
; k
<= HID_OUTPUT_REPORT
; k
++) {
report_enum
= hid
->report_enum
+ k
;
list
= report_enum
->report_list.
next;
while (list
!= &report_enum
->report_list
) {
report
= (struct hid_report
*) list
;
if (!report
->maxfield
)
continue;
if (!hidinput
) {
hidinput
= kmalloc
(sizeof(*hidinput
), GFP_KERNEL
);
if (!hidinput
) {
err
("Out of memory during hid input probe");
return -1;
}
memset(hidinput
, 0, sizeof(*hidinput
));
list_add_tail
(&hidinput
->list
, &hid
->inputs
);
hidinput
->input.
private = hid
;
hidinput
->input.
event = hidinput_input_event
;
hidinput
->input.
open = hidinput_open
;
hidinput
->input.
close = hidinput_close
;
hidinput
->input.
name = hid
->name
;
hidinput
->input.
phys = hid
->phys
;
hidinput
->input.
uniq = hid
->uniq
;
hidinput
->input.
id.
bustype = BUS_USB
;
hidinput
->input.
id.
vendor = dev
->descriptor.
idVendor;
hidinput
->input.
id.
product = dev
->descriptor.
idProduct;
hidinput
->input.
id.
version = dev
->descriptor.
bcdDevice;
}
for (i
= 0; i
< report
->maxfield
; i
++)
for (j
= 0; j
< report
->field
[i
]->maxusage
; j
++)
hidinput_configure_usage
(hidinput
, report
->field
[i
],
report
->field
[i
]->usage
+ j
);
if (hid
->quirks
& HID_QUIRK_MULTI_INPUT
) {
/* This will leave hidinput NULL, so that it
* allocates another one if we have more inputs on
* the same interface. Some devices (e.g. Happ's
* UGCI) cram a lot of unrelated inputs into the
* same interface. */
hidinput
->report
= report
;
input_register_device
(&hidinput
->input
);
hidinput
= NULL
;
}
list
= list
->next
;
}
}
/* This only gets called when we are a single-input (most of the
* time). IOW, not a HID_QUIRK_MULTI_INPUT. The hid_ff_init() is
* only useful in this case, and not for multi-input quirks. */
if (hidinput
) {
hid_ff_init
(hid
);
input_register_device
(&hidinput
->input
);
}
return 0;
}
void hidinput_disconnect
(struct hid_device
*hid
)
{
struct list_head
*lh
, *next
;
struct hid_input
*hidinput
;
list_for_each_safe
(lh
, next
, &hid
->inputs
) {
hidinput
= list_entry
(lh
, struct hid_input
, list
);
input_unregister_device
(&hidinput
->input
);
list_del
(&hidinput
->list
);
kfree
(hidinput
);
}
}