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在linux的用户空间读取侦听input的event事件(包括类型,键值,状态) 博客分类: linux_applinux_kernel  

程序员文章站 2024-03-02 17:22:52
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直接上代码。后续再补充分析。

这个是android源码中 getevent 命令的源码。

位于源码的目录:system/core/toolbox/

 

   >>getevent.c

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <dirent.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <sys/inotify.h>
#include <sys/limits.h>
#include <sys/poll.h>
#include <linux/input.h>
#include <errno.h>

#include "getevent.h"

static struct pollfd *ufds;
static char **device_names;
static int nfds;

enum {
    PRINT_DEVICE_ERRORS     = 1U << 0,
    PRINT_DEVICE            = 1U << 1,
    PRINT_DEVICE_NAME       = 1U << 2,
    PRINT_DEVICE_INFO       = 1U << 3,
    PRINT_VERSION           = 1U << 4,
    PRINT_POSSIBLE_EVENTS   = 1U << 5,
    PRINT_INPUT_PROPS       = 1U << 6,
    PRINT_HID_DESCRIPTOR    = 1U << 7,

    PRINT_ALL_INFO          = (1U << 8) - 1,

    PRINT_LABELS            = 1U << 16,
};

static const char *get_label(const struct label *labels, int value)
{
    while(labels->name && value != labels->value) {
        labels++;
    }
    return labels->name;
}

static int print_input_props(int fd)
{
    uint8_t bits[INPUT_PROP_CNT / 8];
    int i, j;
    int res;
    int count;
    const char *bit_label;

    printf("  input props:\n");
    res = ioctl(fd, EVIOCGPROP(sizeof(bits)), bits);
    if(res < 0) {
        printf("    <not available\n");
        return 1;
    }
    count = 0;
    for(i = 0; i < res; i++) {
        for(j = 0; j < 8; j++) {
            if (bits[i] & 1 << j) {
                bit_label = get_label(input_prop_labels, i * 8 + j);
                if(bit_label)
                    printf("    %s\n", bit_label);
                else
                    printf("    %04x\n", i * 8 + j);
                count++;
            }
        }
    }
    if (!count)
        printf("    <none>\n");
    return 0;
}

static int print_possible_events(int fd, int print_flags)
{
    uint8_t *bits = NULL;
    ssize_t bits_size = 0;
    const char* label;
    int i, j, k;
    int res, res2;
    struct label* bit_labels;
    const char *bit_label;

    printf("  events:\n");
    for(i = EV_KEY; i <= EV_MAX; i++) { // skip EV_SYN since we cannot query its available codes
        int count = 0;
        while(1) {
            res = ioctl(fd, EVIOCGBIT(i, bits_size), bits);
            if(res < bits_size)
                break;
            bits_size = res + 16;
            bits = realloc(bits, bits_size * 2);
            if(bits == NULL) {
                fprintf(stderr, "failed to allocate buffer of size %d\n", (int)bits_size);
                return 1;
            }
        }
        res2 = 0;
        switch(i) {
            case EV_KEY:
                res2 = ioctl(fd, EVIOCGKEY(res), bits + bits_size);
                label = "KEY";
                bit_labels = key_labels;
                break;
            case EV_REL:
                label = "REL";
                bit_labels = rel_labels;
                break;
            case EV_ABS:
                label = "ABS";
                bit_labels = abs_labels;
                break;
            case EV_MSC:
                label = "MSC";
                bit_labels = msc_labels;
                break;
            case EV_LED:
                res2 = ioctl(fd, EVIOCGLED(res), bits + bits_size);
                label = "LED";
                bit_labels = led_labels;
                break;
            case EV_SND:
                res2 = ioctl(fd, EVIOCGSND(res), bits + bits_size);
                label = "SND";
                bit_labels = snd_labels;
                break;
            case EV_SW:
                res2 = ioctl(fd, EVIOCGSW(bits_size), bits + bits_size);
                label = "SW ";
                bit_labels = sw_labels;
                break;
            case EV_REP:
                label = "REP";
                bit_labels = rep_labels;
                break;
            case EV_FF:
                label = "FF ";
                bit_labels = ff_labels;
                break;
            case EV_PWR:
                label = "PWR";
                bit_labels = NULL;
                break;
            case EV_FF_STATUS:
                label = "FFS";
                bit_labels = ff_status_labels;
                break;
            default:
                res2 = 0;
                label = "???";
                bit_labels = NULL;
        }
        for(j = 0; j < res; j++) {
            for(k = 0; k < 8; k++)
                if(bits[j] & 1 << k) {
                    char down;
                    if(j < res2 && (bits[j + bits_size] & 1 << k))
                        down = '*';
                    else
                        down = ' ';
                    if(count == 0)
                        printf("    %s (%04x):", label, i);
                    else if((count & (print_flags & PRINT_LABELS ? 0x3 : 0x7)) == 0 || i == EV_ABS)
                        printf("\n               ");
                    if(bit_labels && (print_flags & PRINT_LABELS)) {
                        bit_label = get_label(bit_labels, j * 8 + k);
                        if(bit_label)
                            printf(" %.20s%c%*s", bit_label, down, 20 - strlen(bit_label), "");
                        else
                            printf(" %04x%c                ", j * 8 + k, down);
                    } else {
                        printf(" %04x%c", j * 8 + k, down);
                    }
                    if(i == EV_ABS) {
                        struct input_absinfo abs;
                        if(ioctl(fd, EVIOCGABS(j * 8 + k), &abs) == 0) {
                            printf(" : value %d, min %d, max %d, fuzz %d, flat %d, resolution %d",
                                abs.value, abs.minimum, abs.maximum, abs.fuzz, abs.flat,
                                abs.resolution);
                        }
                    }
                    count++;
                }
        }
        if(count)
            printf("\n");
    }
    free(bits);
    return 0;
}

static void print_event(int type, int code, int value, int print_flags)
{
    const char *type_label, *code_label, *value_label;

    if (print_flags & PRINT_LABELS) {
        type_label = get_label(ev_labels, type);
        code_label = NULL;
        value_label = NULL;

        switch(type) {
            case EV_SYN:
                code_label = get_label(syn_labels, code);
                break;
            case EV_KEY:
                code_label = get_label(key_labels, code);
                value_label = get_label(key_value_labels, value);
                break;
            case EV_REL:
                code_label = get_label(rel_labels, code);
                break;
            case EV_ABS:
                code_label = get_label(abs_labels, code);
                switch(code) {
                    case ABS_MT_TOOL_TYPE:
                        value_label = get_label(mt_tool_labels, value);
                }
                break;
            case EV_MSC:
                code_label = get_label(msc_labels, code);
                break;
            case EV_LED:
                code_label = get_label(led_labels, code);
                break;
            case EV_SND:
                code_label = get_label(snd_labels, code);
                break;
            case EV_SW:
                code_label = get_label(sw_labels, code);
                break;
            case EV_REP:
                code_label = get_label(rep_labels, code);
                break;
            case EV_FF:
                code_label = get_label(ff_labels, code);
                break;
            case EV_FF_STATUS:
                code_label = get_label(ff_status_labels, code);
                break;
        }

        if (type_label)
            printf("%-12.12s", type_label);
        else
            printf("%04x        ", type);
        if (code_label)
            printf(" %-20.20s", code_label);
        else
            printf(" %04x                ", code);
        if (value_label)
            printf(" %-20.20s", value_label);
        else
            printf(" %08x            ", value);
    } else {
        printf("%04x %04x %08x", type, code, value);
    }
}

static void print_hid_descriptor(int bus, int vendor, int product)
{
    const char *dirname = "/sys/kernel/debug/hid";
    char prefix[16];
    DIR *dir;
    struct dirent *de;
    char filename[PATH_MAX];
    FILE *file;
    char line[2048];

    snprintf(prefix, sizeof(prefix), "%04X:%04X:%04X.", bus, vendor, product);

    dir = opendir(dirname);
    if(dir == NULL)
        return;
    while((de = readdir(dir))) {
        if (strstr(de->d_name, prefix) == de->d_name) {
            snprintf(filename, sizeof(filename), "%s/%s/rdesc", dirname, de->d_name);

            file = fopen(filename, "r");
            if (file) {
                printf("  HID descriptor: %s\n\n", de->d_name);
                while (fgets(line, sizeof(line), file)) {
                    fputs("    ", stdout);
                    fputs(line, stdout);
                }
                fclose(file);
                puts("");
            }
        }
    }
    closedir(dir);
}

static int open_device(const char *device, int print_flags)
{
    int version;
    int fd;
    struct pollfd *new_ufds;
    char **new_device_names;
    char name[80];
    char location[80];
    char idstr[80];
    struct input_id id;

    fd = open(device, O_RDWR);
    if(fd < 0) {
        if(print_flags & PRINT_DEVICE_ERRORS)
            fprintf(stderr, "could not open %s, %s\n", device, strerror(errno));
        return -1;
    }
    
    if(ioctl(fd, EVIOCGVERSION, &version)) {
        if(print_flags & PRINT_DEVICE_ERRORS)
            fprintf(stderr, "could not get driver version for %s, %s\n", device, strerror(errno));
        return -1;
    }
    if(ioctl(fd, EVIOCGID, &id)) {
        if(print_flags & PRINT_DEVICE_ERRORS)
            fprintf(stderr, "could not get driver id for %s, %s\n", device, strerror(errno));
        return -1;
    }
    name[sizeof(name) - 1] = '\0';
    location[sizeof(location) - 1] = '\0';
    idstr[sizeof(idstr) - 1] = '\0';
    if(ioctl(fd, EVIOCGNAME(sizeof(name) - 1), &name) < 1) {
        //fprintf(stderr, "could not get device name for %s, %s\n", device, strerror(errno));
        name[0] = '\0';
    }
    if(ioctl(fd, EVIOCGPHYS(sizeof(location) - 1), &location) < 1) {
        //fprintf(stderr, "could not get location for %s, %s\n", device, strerror(errno));
        location[0] = '\0';
    }
    if(ioctl(fd, EVIOCGUNIQ(sizeof(idstr) - 1), &idstr) < 1) {
        //fprintf(stderr, "could not get idstring for %s, %s\n", device, strerror(errno));
        idstr[0] = '\0';
    }

    new_ufds = realloc(ufds, sizeof(ufds[0]) * (nfds + 1));
    if(new_ufds == NULL) {
        fprintf(stderr, "out of memory\n");
        return -1;
    }
    ufds = new_ufds;
    new_device_names = realloc(device_names, sizeof(device_names[0]) * (nfds + 1));
    if(new_device_names == NULL) {
        fprintf(stderr, "out of memory\n");
        return -1;
    }
    device_names = new_device_names;

    if(print_flags & PRINT_DEVICE)
        printf("add device %d: %s\n", nfds, device);
    if(print_flags & PRINT_DEVICE_INFO)
        printf("  bus:      %04x\n"
               "  vendor    %04x\n"
               "  product   %04x\n"
               "  version   %04x\n",
               id.bustype, id.vendor, id.product, id.version);
    if(print_flags & PRINT_DEVICE_NAME)
        printf("  name:     \"%s\"\n", name);
    if(print_flags & PRINT_DEVICE_INFO)
        printf("  location: \"%s\"\n"
               "  id:       \"%s\"\n", location, idstr);
    if(print_flags & PRINT_VERSION)
        printf("  version:  %d.%d.%d\n",
               version >> 16, (version >> 8) & 0xff, version & 0xff);

    if(print_flags & PRINT_POSSIBLE_EVENTS) {
        print_possible_events(fd, print_flags);
    }

    if(print_flags & PRINT_INPUT_PROPS) {
        print_input_props(fd);
    }
    if(print_flags & PRINT_HID_DESCRIPTOR) {
        print_hid_descriptor(id.bustype, id.vendor, id.product);
    }

    ufds[nfds].fd = fd;
    ufds[nfds].events = POLLIN;
    device_names[nfds] = strdup(device);
    nfds++;

    return 0;
}

int close_device(const char *device, int print_flags)
{
    int i;
    for(i = 1; i < nfds; i++) {
        if(strcmp(device_names[i], device) == 0) {
            int count = nfds - i - 1;
            if(print_flags & PRINT_DEVICE)
                printf("remove device %d: %s\n", i, device);
            free(device_names[i]);
            memmove(device_names + i, device_names + i + 1, sizeof(device_names[0]) * count);
            memmove(ufds + i, ufds + i + 1, sizeof(ufds[0]) * count);
            nfds--;
            return 0;
        }
    }
    if(print_flags & PRINT_DEVICE_ERRORS)
        fprintf(stderr, "remote device: %s not found\n", device);
    return -1;
}

static int read_notify(const char *dirname, int nfd, int print_flags)
{
    int res;
    char devname[PATH_MAX];
    char *filename;
    char event_buf[512];
    int event_size;
    int event_pos = 0;
    struct inotify_event *event;

    res = read(nfd, event_buf, sizeof(event_buf));
    if(res < (int)sizeof(*event)) {
        if(errno == EINTR)
            return 0;
        fprintf(stderr, "could not get event, %s\n", strerror(errno));
        return 1;
    }
    //printf("got %d bytes of event information\n", res);

    strcpy(devname, dirname);
    filename = devname + strlen(devname);
    *filename++ = '/';

    while(res >= (int)sizeof(*event)) {
        event = (struct inotify_event *)(event_buf + event_pos);
        //printf("%d: %08x \"%s\"\n", event->wd, event->mask, event->len ? event->name : "");
        if(event->len) {
            strcpy(filename, event->name);
            if(event->mask & IN_CREATE) {
                open_device(devname, print_flags);
            }
            else {
                close_device(devname, print_flags);
            }
        }
        event_size = sizeof(*event) + event->len;
        res -= event_size;
        event_pos += event_size;
    }
    return 0;
}

static int scan_dir(const char *dirname, int print_flags)
{
    char devname[PATH_MAX];
    char *filename;
    DIR *dir;
    struct dirent *de;
    dir = opendir(dirname);
    if(dir == NULL)
        return -1;
    strcpy(devname, dirname);
    filename = devname + strlen(devname);
    *filename++ = '/';
    while((de = readdir(dir))) {
        if(de->d_name[0] == '.' &&
           (de->d_name[1] == '\0' ||
            (de->d_name[1] == '.' && de->d_name[2] == '\0')))
            continue;
        strcpy(filename, de->d_name);
        open_device(devname, print_flags);
    }
    closedir(dir);
    return 0;
}

static void usage(int argc, char *argv[])
{
    fprintf(stderr, "Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", argv[0]);
    fprintf(stderr, "    -t: show time stamps\n");
    fprintf(stderr, "    -n: don't print newlines\n");
    fprintf(stderr, "    -s: print switch states for given bits\n");
    fprintf(stderr, "    -S: print all switch states\n");
    fprintf(stderr, "    -v: verbosity mask (errs=1, dev=2, name=4, info=8, vers=16, pos. events=32, props=64)\n");
    fprintf(stderr, "    -d: show HID descriptor, if available\n");
    fprintf(stderr, "    -p: show possible events (errs, dev, name, pos. events)\n");
    fprintf(stderr, "    -i: show all device info and possible events\n");
    fprintf(stderr, "    -l: label event types and names in plain text\n");
    fprintf(stderr, "    -q: quiet (clear verbosity mask)\n");
    fprintf(stderr, "    -c: print given number of events then exit\n");
    fprintf(stderr, "    -r: print rate events are received\n");
}

int getevent_main(int argc, char *argv[])
{
    int c;
    int i;
    int res;
    int pollres;
    int get_time = 0;
    int print_device = 0;
    char *newline = "\n";
    uint16_t get_switch = 0;
    struct input_event event;
    int version;
    int print_flags = 0;
    int print_flags_set = 0;
    int dont_block = -1;
    int event_count = 0;
    int sync_rate = 0;
    int64_t last_sync_time = 0;
    const char *device = NULL;
    const char *device_path = "/dev/input";

    opterr = 0;
    do {
        c = getopt(argc, argv, "tns:Sv::dpilqc:rh");
        if (c == EOF)
            break;
        switch (c) {
        case 't':
            get_time = 1;
            break;
        case 'n':
            newline = "";
            break;
        case 's':
            get_switch = strtoul(optarg, NULL, 0);
            if(dont_block == -1)
                dont_block = 1;
            break;
        case 'S':
            get_switch = ~0;
            if(dont_block == -1)
                dont_block = 1;
            break;
        case 'v':
            if(optarg)
                print_flags |= strtoul(optarg, NULL, 0);
            else
                print_flags |= PRINT_DEVICE | PRINT_DEVICE_NAME | PRINT_DEVICE_INFO | PRINT_VERSION;
            print_flags_set = 1;
            break;
        case 'd':
            print_flags |= PRINT_HID_DESCRIPTOR;
            break;
        case 'p':
            print_flags |= PRINT_DEVICE_ERRORS | PRINT_DEVICE
                    | PRINT_DEVICE_NAME | PRINT_POSSIBLE_EVENTS | PRINT_INPUT_PROPS;
            print_flags_set = 1;
            if(dont_block == -1)
                dont_block = 1;
            break;
        case 'i':
            print_flags |= PRINT_ALL_INFO;
            print_flags_set = 1;
            if(dont_block == -1)
                dont_block = 1;
            break;
        case 'l':
            print_flags |= PRINT_LABELS;
            break;
        case 'q':
            print_flags_set = 1;
            break;
        case 'c':
            event_count = atoi(optarg);
            dont_block = 0;
            break;
        case 'r':
            sync_rate = 1;
            break;
        case '?':
            fprintf(stderr, "%s: invalid option -%c\n",
                argv[0], optopt);
        case 'h':
            usage(argc, argv);
            exit(1);
        }
    } while (1);
    if(dont_block == -1)
        dont_block = 0;

    if (optind + 1 == argc) {
        device = argv[optind];
        optind++;
    }
    if (optind != argc) {
        usage(argc, argv);
        exit(1);
    }
    nfds = 1;
    ufds = calloc(1, sizeof(ufds[0]));
    ufds[0].fd = inotify_init();
    ufds[0].events = POLLIN;
    if(device) {
        if(!print_flags_set)
            print_flags |= PRINT_DEVICE_ERRORS;
        res = open_device(device, print_flags);
        if(res < 0) {
            return 1;
        }
    } else {
        if(!print_flags_set)
            print_flags |= PRINT_DEVICE_ERRORS | PRINT_DEVICE | PRINT_DEVICE_NAME;
        print_device = 1;
		res = inotify_add_watch(ufds[0].fd, device_path, IN_DELETE | IN_CREATE);
        if(res < 0) {
            fprintf(stderr, "could not add watch for %s, %s\n", device_path, strerror(errno));
            return 1;
        }
        res = scan_dir(device_path, print_flags);
        if(res < 0) {
            fprintf(stderr, "scan dir failed for %s\n", device_path);
            return 1;
        }
    }

    if(get_switch) {
        for(i = 1; i < nfds; i++) {
            uint16_t sw;
            res = ioctl(ufds[i].fd, EVIOCGSW(1), &sw);
            if(res < 0) {
                fprintf(stderr, "could not get switch state, %s\n", strerror(errno));
                return 1;
            }
            sw &= get_switch;
            printf("%04x%s", sw, newline);
        }
    }

    if(dont_block)
        return 0;

    while(1) {
        pollres = poll(ufds, nfds, -1);
        //printf("poll %d, returned %d\n", nfds, pollres);
        if(ufds[0].revents & POLLIN) {
            read_notify(device_path, ufds[0].fd, print_flags);
        }
        for(i = 1; i < nfds; i++) {
            if(ufds[i].revents) {
                if(ufds[i].revents & POLLIN) {
                    res = read(ufds[i].fd, &event, sizeof(event));
                    if(res < (int)sizeof(event)) {
                        fprintf(stderr, "could not get event\n");
                        return 1;
                    }
                    if(get_time) {
                        printf("[%8ld.%06ld] ", event.time.tv_sec, event.time.tv_usec);
                    }
                    if(print_device)
                        printf("%s: ", device_names[i]);
                    print_event(event.type, event.code, event.value, print_flags);
                    if(sync_rate && event.type == 0 && event.code == 0) {
                        int64_t now = event.time.tv_sec * 1000000LL + event.time.tv_usec;
                        if(last_sync_time)
                            printf(" rate %lld", 1000000LL / (now - last_sync_time));
                        last_sync_time = now;
                    }
                    printf("%s", newline);
                    if(event_count && --event_count == 0)
                        return 0;
                }
            }
        }
    }

    return 0;
}

 

 

    >> getevent.h

#include <linux/input.h>

struct label {
    const char *name;
    int value;
};

#define LABEL(constant) { #constant, constant }
#define LABEL_END { NULL, -1 }

static struct label input_prop_labels[] = {
        LABEL(INPUT_PROP_POINTER),
        LABEL(INPUT_PROP_DIRECT),
        LABEL(INPUT_PROP_BUTTONPAD),
        LABEL(INPUT_PROP_SEMI_MT),
        LABEL_END,
};

static struct label ev_labels[] = {
        LABEL(EV_SYN),
        LABEL(EV_KEY),
        LABEL(EV_REL),
        LABEL(EV_ABS),
        LABEL(EV_MSC),
        LABEL(EV_SW),
        LABEL(EV_LED),
        LABEL(EV_SND),
        LABEL(EV_REP),
        LABEL(EV_FF),
        LABEL(EV_PWR),
        LABEL(EV_FF_STATUS),
        LABEL_END,
};

static struct label syn_labels[] = {
        LABEL(SYN_REPORT),
        LABEL(SYN_CONFIG),
        LABEL(SYN_MT_REPORT),
        LABEL(SYN_DROPPED),
        LABEL_END,
};

static struct label key_labels[] = {
        LABEL(KEY_RESERVED),
        LABEL(KEY_ESC),
        LABEL(KEY_1),
        LABEL(KEY_2),
        LABEL(KEY_3),
        LABEL(KEY_4),
        LABEL(KEY_5),
        LABEL(KEY_6),
        LABEL(KEY_7),
        LABEL(KEY_8),
        LABEL(KEY_9),
        LABEL(KEY_0),
        LABEL(KEY_MINUS),
        LABEL(KEY_EQUAL),
        LABEL(KEY_BACKSPACE),
        LABEL(KEY_TAB),
        LABEL(KEY_Q),
        LABEL(KEY_W),
        LABEL(KEY_E),
        LABEL(KEY_R),
        LABEL(KEY_T),
        LABEL(KEY_Y),
        LABEL(KEY_U),
        LABEL(KEY_I),
        LABEL(KEY_O),
        LABEL(KEY_P),
        LABEL(KEY_LEFTBRACE),
        LABEL(KEY_RIGHTBRACE),
        LABEL(KEY_ENTER),
        LABEL(KEY_LEFTCTRL),
        LABEL(KEY_A),
        LABEL(KEY_S),
        LABEL(KEY_D),
        LABEL(KEY_F),
        LABEL(KEY_G),
        LABEL(KEY_H),
        LABEL(KEY_J),
        LABEL(KEY_K),
        LABEL(KEY_L),
        LABEL(KEY_SEMICOLON),
        LABEL(KEY_APOSTROPHE),
        LABEL(KEY_GRAVE),
        LABEL(KEY_LEFTSHIFT),
        LABEL(KEY_BACKSLASH),
        LABEL(KEY_Z),
        LABEL(KEY_X),
        LABEL(KEY_C),
        LABEL(KEY_V),
        LABEL(KEY_B),
        LABEL(KEY_N),
        LABEL(KEY_M),
        LABEL(KEY_COMMA),
        LABEL(KEY_DOT),
        LABEL(KEY_SLASH),
        LABEL(KEY_RIGHTSHIFT),
        LABEL(KEY_KPASTERISK),
        LABEL(KEY_LEFTALT),
        LABEL(KEY_SPACE),
        LABEL(KEY_CAPSLOCK),
        LABEL(KEY_F1),
        LABEL(KEY_F2),
        LABEL(KEY_F3),
        LABEL(KEY_F4),
        LABEL(KEY_F5),
        LABEL(KEY_F6),
        LABEL(KEY_F7),
        LABEL(KEY_F8),
        LABEL(KEY_F9),
        LABEL(KEY_F10),
        LABEL(KEY_NUMLOCK),
        LABEL(KEY_SCROLLLOCK),
        LABEL(KEY_KP7),
        LABEL(KEY_KP8),
        LABEL(KEY_KP9),
        LABEL(KEY_KPMINUS),
        LABEL(KEY_KP4),
        LABEL(KEY_KP5),
        LABEL(KEY_KP6),
        LABEL(KEY_KPPLUS),
        LABEL(KEY_KP1),
        LABEL(KEY_KP2),
        LABEL(KEY_KP3),
        LABEL(KEY_KP0),
        LABEL(KEY_KPDOT),
        LABEL(KEY_ZENKAKUHANKAKU),
        LABEL(KEY_102ND),
        LABEL(KEY_F11),
        LABEL(KEY_F12),
        LABEL(KEY_RO),
        LABEL(KEY_KATAKANA),
        LABEL(KEY_HIRAGANA),
        LABEL(KEY_HENKAN),
        LABEL(KEY_KATAKANAHIRAGANA),
        LABEL(KEY_MUHENKAN),
        LABEL(KEY_KPJPCOMMA),
        LABEL(KEY_KPENTER),
        LABEL(KEY_RIGHTCTRL),
        LABEL(KEY_KPSLASH),
        LABEL(KEY_SYSRQ),
        LABEL(KEY_RIGHTALT),
        LABEL(KEY_LINEFEED),
        LABEL(KEY_HOME),
        LABEL(KEY_UP),
        LABEL(KEY_PAGEUP),
        LABEL(KEY_LEFT),
        LABEL(KEY_RIGHT),
        LABEL(KEY_END),
        LABEL(KEY_DOWN),
        LABEL(KEY_PAGEDOWN),
        LABEL(KEY_INSERT),
        LABEL(KEY_DELETE),
        LABEL(KEY_MACRO),
        LABEL(KEY_MUTE),
        LABEL(KEY_VOLUMEDOWN),
        LABEL(KEY_VOLUMEUP),
        LABEL(KEY_POWER),
        LABEL(KEY_KPEQUAL),
        LABEL(KEY_KPPLUSMINUS),
        LABEL(KEY_PAUSE),
        LABEL(KEY_SCALE),
        LABEL(KEY_KPCOMMA),
        LABEL(KEY_HANGEUL),
        LABEL(KEY_HANGUEL),
        LABEL(KEY_HANJA),
        LABEL(KEY_YEN),
        LABEL(KEY_LEFTMETA),
        LABEL(KEY_RIGHTMETA),
        LABEL(KEY_COMPOSE),
        LABEL(KEY_STOP),
        LABEL(KEY_AGAIN),
        LABEL(KEY_PROPS),
        LABEL(KEY_UNDO),
        LABEL(KEY_FRONT),
        LABEL(KEY_COPY),
        LABEL(KEY_OPEN),
        LABEL(KEY_PASTE),
        LABEL(KEY_FIND),
        LABEL(KEY_CUT),
        LABEL(KEY_HELP),
        LABEL(KEY_MENU),
        LABEL(KEY_CALC),
        LABEL(KEY_SETUP),
        LABEL(KEY_SLEEP),
        LABEL(KEY_WAKEUP),
        LABEL(KEY_FILE),
        LABEL(KEY_SENDFILE),
        LABEL(KEY_DELETEFILE),
        LABEL(KEY_XFER),
        LABEL(KEY_PROG1),
        LABEL(KEY_PROG2),
        LABEL(KEY_WWW),
        LABEL(KEY_MSDOS),
        LABEL(KEY_COFFEE),
        LABEL(KEY_SCREENLOCK),
        LABEL(KEY_DIRECTION),
        LABEL(KEY_CYCLEWINDOWS),
        LABEL(KEY_MAIL),
        LABEL(KEY_BOOKMARKS),
        LABEL(KEY_COMPUTER),
        LABEL(KEY_BACK),
        LABEL(KEY_FORWARD),
        LABEL(KEY_CLOSECD),
        LABEL(KEY_EJECTCD),
        LABEL(KEY_EJECTCLOSECD),
        LABEL(KEY_NEXTSONG),
        LABEL(KEY_PLAYPAUSE),
        LABEL(KEY_PREVIOUSSONG),
        LABEL(KEY_STOPCD),
        LABEL(KEY_RECORD),
        LABEL(KEY_REWIND),
        LABEL(KEY_PHONE),
        LABEL(KEY_ISO),
        LABEL(KEY_CONFIG),
        LABEL(KEY_HOMEPAGE),
        LABEL(KEY_REFRESH),
        LABEL(KEY_EXIT),
        LABEL(KEY_MOVE),
        LABEL(KEY_EDIT),
        LABEL(KEY_SCROLLUP),
        LABEL(KEY_SCROLLDOWN),
        LABEL(KEY_KPLEFTPAREN),
        LABEL(KEY_KPRIGHTPAREN),
        LABEL(KEY_NEW),
        LABEL(KEY_REDO),
        LABEL(KEY_F13),
        LABEL(KEY_F14),
        LABEL(KEY_F15),
        LABEL(KEY_F16),
        LABEL(KEY_F17),
        LABEL(KEY_F18),
        LABEL(KEY_F19),
        LABEL(KEY_F20),
        LABEL(KEY_F21),
        LABEL(KEY_F22),
        LABEL(KEY_F23),
        LABEL(KEY_F24),
        LABEL(KEY_PLAYCD),
        LABEL(KEY_PAUSECD),
        LABEL(KEY_PROG3),
        LABEL(KEY_PROG4),
        LABEL(KEY_DASHBOARD),
        LABEL(KEY_SUSPEND),
        LABEL(KEY_CLOSE),
        LABEL(KEY_PLAY),
        LABEL(KEY_FASTFORWARD),
        LABEL(KEY_BASSBOOST),
        LABEL(KEY_PRINT),
        LABEL(KEY_HP),
        LABEL(KEY_CAMERA),
        LABEL(KEY_SOUND),
        LABEL(KEY_QUESTION),
        LABEL(KEY_EMAIL),
        LABEL(KEY_CHAT),
        LABEL(KEY_SEARCH),
        LABEL(KEY_CONNECT),
        LABEL(KEY_FINANCE),
        LABEL(KEY_SPORT),
        LABEL(KEY_SHOP),
        LABEL(KEY_ALTERASE),
        LABEL(KEY_CANCEL),
        LABEL(KEY_BRIGHTNESSDOWN),
        LABEL(KEY_BRIGHTNESSUP),
        LABEL(KEY_MEDIA),
        LABEL(KEY_SWITCHVIDEOMODE),
        LABEL(KEY_KBDILLUMTOGGLE),
        LABEL(KEY_KBDILLUMDOWN),
        LABEL(KEY_KBDILLUMUP),
        LABEL(KEY_SEND),
        LABEL(KEY_REPLY),
        LABEL(KEY_FORWARDMAIL),
        LABEL(KEY_SAVE),
        LABEL(KEY_DOCUMENTS),
        LABEL(KEY_BATTERY),
        LABEL(KEY_BLUETOOTH),
        LABEL(KEY_WLAN),
        LABEL(KEY_UWB),
        LABEL(KEY_UNKNOWN),
        LABEL(KEY_VIDEO_NEXT),
        LABEL(KEY_VIDEO_PREV),
        LABEL(KEY_BRIGHTNESS_CYCLE),
        LABEL(KEY_BRIGHTNESS_ZERO),
        LABEL(KEY_DISPLAY_OFF),
        LABEL(KEY_WIMAX),
        LABEL(KEY_RFKILL),
        LABEL(BTN_0),
        LABEL(BTN_1),
        LABEL(BTN_2),
        LABEL(BTN_3),
        LABEL(BTN_4),
        LABEL(BTN_5),
        LABEL(BTN_6),
        LABEL(BTN_7),
        LABEL(BTN_8),
        LABEL(BTN_9),
        LABEL(BTN_LEFT),
        LABEL(BTN_RIGHT),
        LABEL(BTN_MIDDLE),
        LABEL(BTN_SIDE),
        LABEL(BTN_EXTRA),
        LABEL(BTN_FORWARD),
        LABEL(BTN_BACK),
        LABEL(BTN_TASK),
        LABEL(BTN_JOYSTICK),
        LABEL(BTN_TRIGGER),
        LABEL(BTN_THUMB),
        LABEL(BTN_THUMB2),
        LABEL(BTN_TOP),
        LABEL(BTN_TOP2),
        LABEL(BTN_PINKIE),
        LABEL(BTN_BASE),
        LABEL(BTN_BASE2),
        LABEL(BTN_BASE3),
        LABEL(BTN_BASE4),
        LABEL(BTN_BASE5),
        LABEL(BTN_BASE6),
        LABEL(BTN_DEAD),
        LABEL(BTN_A),
        LABEL(BTN_B),
        LABEL(BTN_C),
        LABEL(BTN_X),
        LABEL(BTN_Y),
        LABEL(BTN_Z),
        LABEL(BTN_TL),
        LABEL(BTN_TR),
        LABEL(BTN_TL2),
        LABEL(BTN_TR2),
        LABEL(BTN_SELECT),
        LABEL(BTN_START),
        LABEL(BTN_MODE),
        LABEL(BTN_THUMBL),
        LABEL(BTN_THUMBR),
        LABEL(BTN_TOOL_PEN),
        LABEL(BTN_TOOL_RUBBER),
        LABEL(BTN_TOOL_BRUSH),
        LABEL(BTN_TOOL_PENCIL),
        LABEL(BTN_TOOL_AIRBRUSH),
        LABEL(BTN_TOOL_FINGER),
        LABEL(BTN_TOOL_MOUSE),
        LABEL(BTN_TOOL_LENS),
        LABEL(BTN_TOUCH),
        LABEL(BTN_STYLUS),
        LABEL(BTN_STYLUS2),
        LABEL(BTN_TOOL_DOUBLETAP),
        LABEL(BTN_TOOL_TRIPLETAP),
        LABEL(BTN_TOOL_QUADTAP),
        LABEL(BTN_GEAR_DOWN),
        LABEL(BTN_GEAR_UP),
        LABEL(KEY_OK),
        LABEL(KEY_SELECT),
        LABEL(KEY_GOTO),
        LABEL(KEY_CLEAR),
        LABEL(KEY_POWER2),
        LABEL(KEY_OPTION),
        LABEL(KEY_INFO),
        LABEL(KEY_TIME),
        LABEL(KEY_VENDOR),
        LABEL(KEY_ARCHIVE),
        LABEL(KEY_PROGRAM),
        LABEL(KEY_CHANNEL),
        LABEL(KEY_FAVORITES),
        LABEL(KEY_EPG),
        LABEL(KEY_PVR),
        LABEL(KEY_MHP),
        LABEL(KEY_LANGUAGE),
        LABEL(KEY_TITLE),
        LABEL(KEY_SUBTITLE),
        LABEL(KEY_ANGLE),
        LABEL(KEY_ZOOM),
        LABEL(KEY_MODE),
        LABEL(KEY_KEYBOARD),
        LABEL(KEY_SCREEN),
        LABEL(KEY_PC),
        LABEL(KEY_TV),
        LABEL(KEY_TV2),
        LABEL(KEY_VCR),
        LABEL(KEY_VCR2),
        LABEL(KEY_SAT),
        LABEL(KEY_SAT2),
        LABEL(KEY_CD),
        LABEL(KEY_TAPE),
        LABEL(KEY_RADIO),
        LABEL(KEY_TUNER),
        LABEL(KEY_PLAYER),
        LABEL(KEY_TEXT),
        LABEL(KEY_DVD),
        LABEL(KEY_AUX),
        LABEL(KEY_MP3),
        LABEL(KEY_AUDIO),
        LABEL(KEY_VIDEO),
        LABEL(KEY_DIRECTORY),
        LABEL(KEY_LIST),
        LABEL(KEY_MEMO),
        LABEL(KEY_CALENDAR),
        LABEL(KEY_RED),
        LABEL(KEY_GREEN),
        LABEL(KEY_YELLOW),
        LABEL(KEY_BLUE),
        LABEL(KEY_CHANNELUP),
        LABEL(KEY_CHANNELDOWN),
        LABEL(KEY_FIRST),
        LABEL(KEY_LAST),
        LABEL(KEY_AB),
        LABEL(KEY_NEXT),
        LABEL(KEY_RESTART),
        LABEL(KEY_SLOW),
        LABEL(KEY_SHUFFLE),
        LABEL(KEY_BREAK),
        LABEL(KEY_PREVIOUS),
        LABEL(KEY_DIGITS),
        LABEL(KEY_TEEN),
        LABEL(KEY_TWEN),
        LABEL(KEY_VIDEOPHONE),
        LABEL(KEY_GAMES),
        LABEL(KEY_ZOOMIN),
        LABEL(KEY_ZOOMOUT),
        LABEL(KEY_ZOOMRESET),
        LABEL(KEY_WORDPROCESSOR),
        LABEL(KEY_EDITOR),
        LABEL(KEY_SPREADSHEET),
        LABEL(KEY_GRAPHICSEDITOR),
        LABEL(KEY_PRESENTATION),
        LABEL(KEY_DATABASE),
        LABEL(KEY_NEWS),
        LABEL(KEY_VOICEMAIL),
        LABEL(KEY_ADDRESSBOOK),
        LABEL(KEY_MESSENGER),
        LABEL(KEY_DISPLAYTOGGLE),
        LABEL(KEY_SPELLCHECK),
        LABEL(KEY_LOGOFF),
        LABEL(KEY_DOLLAR),
        LABEL(KEY_EURO),
        LABEL(KEY_FRAMEBACK),
        LABEL(KEY_FRAMEFORWARD),
        LABEL(KEY_CONTEXT_MENU),
        LABEL(KEY_MEDIA_REPEAT),
        LABEL(KEY_10CHANNELSUP),
        LABEL(KEY_10CHANNELSDOWN),
        LABEL(KEY_IMAGES),
        LABEL(KEY_DEL_EOL),
        LABEL(KEY_DEL_EOS),
        LABEL(KEY_INS_LINE),
        LABEL(KEY_DEL_LINE),
        LABEL(KEY_FN),
        LABEL(KEY_FN_ESC),
        LABEL(KEY_FN_F1),
        LABEL(KEY_FN_F2),
        LABEL(KEY_FN_F3),
        LABEL(KEY_FN_F4),
        LABEL(KEY_FN_F5),
        LABEL(KEY_FN_F6),
        LABEL(KEY_FN_F7),
        LABEL(KEY_FN_F8),
        LABEL(KEY_FN_F9),
        LABEL(KEY_FN_F10),
        LABEL(KEY_FN_F11),
        LABEL(KEY_FN_F12),
        LABEL(KEY_FN_1),
        LABEL(KEY_FN_2),
        LABEL(KEY_FN_D),
        LABEL(KEY_FN_E),
        LABEL(KEY_FN_F),
        LABEL(KEY_FN_S),
        LABEL(KEY_FN_B),
        LABEL(KEY_BRL_DOT1),
        LABEL(KEY_BRL_DOT2),
        LABEL(KEY_BRL_DOT3),
        LABEL(KEY_BRL_DOT4),
        LABEL(KEY_BRL_DOT5),
        LABEL(KEY_BRL_DOT6),
        LABEL(KEY_BRL_DOT7),
        LABEL(KEY_BRL_DOT8),
        LABEL(KEY_BRL_DOT9),
        LABEL(KEY_BRL_DOT10),
        LABEL(KEY_NUMERIC_0),
        LABEL(KEY_NUMERIC_1),
        LABEL(KEY_NUMERIC_2),
        LABEL(KEY_NUMERIC_3),
        LABEL(KEY_NUMERIC_4),
        LABEL(KEY_NUMERIC_5),
        LABEL(KEY_NUMERIC_6),
        LABEL(KEY_NUMERIC_7),
        LABEL(KEY_NUMERIC_8),
        LABEL(KEY_NUMERIC_9),
        LABEL(KEY_NUMERIC_STAR),
        LABEL(KEY_NUMERIC_POUND),
        LABEL(KEY_CAMERA_FOCUS),
        LABEL(KEY_WPS_BUTTON),
        LABEL(KEY_TOUCHPAD_TOGGLE),
        LABEL(KEY_TOUCHPAD_ON),
        LABEL(KEY_TOUCHPAD_OFF),
        LABEL(KEY_CAMERA_ZOOMIN),
        LABEL(KEY_CAMERA_ZOOMOUT),
        LABEL(KEY_CAMERA_UP),
        LABEL(KEY_CAMERA_DOWN),
        LABEL(KEY_CAMERA_LEFT),
        LABEL(KEY_CAMERA_RIGHT),
        LABEL(BTN_TRIGGER_HAPPY1),
        LABEL(BTN_TRIGGER_HAPPY2),
        LABEL(BTN_TRIGGER_HAPPY3),
        LABEL(BTN_TRIGGER_HAPPY4),
        LABEL(BTN_TRIGGER_HAPPY5),
        LABEL(BTN_TRIGGER_HAPPY6),
        LABEL(BTN_TRIGGER_HAPPY7),
        LABEL(BTN_TRIGGER_HAPPY8),
        LABEL(BTN_TRIGGER_HAPPY9),
        LABEL(BTN_TRIGGER_HAPPY10),
        LABEL(BTN_TRIGGER_HAPPY11),
        LABEL(BTN_TRIGGER_HAPPY12),
        LABEL(BTN_TRIGGER_HAPPY13),
        LABEL(BTN_TRIGGER_HAPPY14),
        LABEL(BTN_TRIGGER_HAPPY15),
        LABEL(BTN_TRIGGER_HAPPY16),
        LABEL(BTN_TRIGGER_HAPPY17),
        LABEL(BTN_TRIGGER_HAPPY18),
        LABEL(BTN_TRIGGER_HAPPY19),
        LABEL(BTN_TRIGGER_HAPPY20),
        LABEL(BTN_TRIGGER_HAPPY21),
        LABEL(BTN_TRIGGER_HAPPY22),
        LABEL(BTN_TRIGGER_HAPPY23),
        LABEL(BTN_TRIGGER_HAPPY24),
        LABEL(BTN_TRIGGER_HAPPY25),
        LABEL(BTN_TRIGGER_HAPPY26),
        LABEL(BTN_TRIGGER_HAPPY27),
        LABEL(BTN_TRIGGER_HAPPY28),
        LABEL(BTN_TRIGGER_HAPPY29),
        LABEL(BTN_TRIGGER_HAPPY30),
        LABEL(BTN_TRIGGER_HAPPY31),
        LABEL(BTN_TRIGGER_HAPPY32),
        LABEL(BTN_TRIGGER_HAPPY33),
        LABEL(BTN_TRIGGER_HAPPY34),
        LABEL(BTN_TRIGGER_HAPPY35),
        LABEL(BTN_TRIGGER_HAPPY36),
        LABEL(BTN_TRIGGER_HAPPY37),
        LABEL(BTN_TRIGGER_HAPPY38),
        LABEL(BTN_TRIGGER_HAPPY39),
        LABEL(BTN_TRIGGER_HAPPY40),
        LABEL_END,
};

static struct label rel_labels[] = {
        LABEL(REL_X),
        LABEL(REL_Y),
        LABEL(REL_Z),
        LABEL(REL_RX),
        LABEL(REL_RY),
        LABEL(REL_RZ),
        LABEL(REL_HWHEEL),
        LABEL(REL_DIAL),
        LABEL(REL_WHEEL),
        LABEL(REL_MISC),
        LABEL_END,
};

static struct label abs_labels[] = {
        LABEL(ABS_X),
        LABEL(ABS_Y),
        LABEL(ABS_Z),
        LABEL(ABS_RX),
        LABEL(ABS_RY),
        LABEL(ABS_RZ),
        LABEL(ABS_THROTTLE),
        LABEL(ABS_RUDDER),
        LABEL(ABS_WHEEL),
        LABEL(ABS_GAS),
        LABEL(ABS_BRAKE),
        LABEL(ABS_HAT0X),
        LABEL(ABS_HAT0Y),
        LABEL(ABS_HAT1X),
        LABEL(ABS_HAT1Y),
        LABEL(ABS_HAT2X),
        LABEL(ABS_HAT2Y),
        LABEL(ABS_HAT3X),
        LABEL(ABS_HAT3Y),
        LABEL(ABS_PRESSURE),
        LABEL(ABS_DISTANCE),
        LABEL(ABS_TILT_X),
        LABEL(ABS_TILT_Y),
        LABEL(ABS_TOOL_WIDTH),
        LABEL(ABS_VOLUME),
        LABEL(ABS_MISC),
        LABEL(ABS_MT_SLOT),
        LABEL(ABS_MT_TOUCH_MAJOR),
        LABEL(ABS_MT_TOUCH_MINOR),
        LABEL(ABS_MT_WIDTH_MAJOR),
        LABEL(ABS_MT_WIDTH_MINOR),
        LABEL(ABS_MT_ORIENTATION),
        LABEL(ABS_MT_POSITION_X),
        LABEL(ABS_MT_POSITION_Y),
        LABEL(ABS_MT_TOOL_TYPE),
        LABEL(ABS_MT_BLOB_ID),
        LABEL(ABS_MT_TRACKING_ID),
        LABEL(ABS_MT_PRESSURE),
        LABEL(ABS_MT_DISTANCE),
        LABEL_END,
};

static struct label sw_labels[] = {
        LABEL(SW_LID),
        LABEL(SW_TABLET_MODE),
        LABEL(SW_HEADPHONE_INSERT),
        LABEL(SW_RFKILL_ALL),
        LABEL(SW_RADIO),
        LABEL(SW_MICROPHONE_INSERT),
        LABEL(SW_DOCK),
        LABEL(SW_LINEOUT_INSERT),
        LABEL(SW_JACK_PHYSICAL_INSERT),
        LABEL(SW_VIDEOOUT_INSERT),
        LABEL(SW_CAMERA_LENS_COVER),
        LABEL(SW_KEYPAD_SLIDE),
        LABEL(SW_FRONT_PROXIMITY),
        LABEL(SW_ROTATE_LOCK),
        LABEL_END,
};

static struct label msc_labels[] = {
        LABEL(MSC_SERIAL),
        LABEL(MSC_PULSELED),
        LABEL(MSC_GESTURE),
        LABEL(MSC_RAW),
        LABEL(MSC_SCAN),
        LABEL_END,
};

static struct label led_labels[] = {
        LABEL(LED_NUML),
        LABEL(LED_CAPSL),
        LABEL(LED_SCROLLL),
        LABEL(LED_COMPOSE),
        LABEL(LED_KANA),
        LABEL(LED_SLEEP),
        LABEL(LED_SUSPEND),
        LABEL(LED_MUTE),
        LABEL(LED_MISC),
        LABEL(LED_MAIL),
        LABEL(LED_CHARGING),
        LABEL_END,
};

static struct label rep_labels[] = {
        LABEL(REP_DELAY),
        LABEL(REP_PERIOD),
        LABEL_END,
};

static struct label snd_labels[] = {
        LABEL(SND_CLICK),
        LABEL(SND_BELL),
        LABEL(SND_TONE),
        LABEL_END,
};

static struct label id_labels[] = {
        LABEL(ID_BUS),
        LABEL(ID_VENDOR),
        LABEL(ID_PRODUCT),
        LABEL(ID_VERSION),
        LABEL_END,
};

static struct label bus_labels[] = {
        LABEL(BUS_PCI),
        LABEL(BUS_ISAPNP),
        LABEL(BUS_USB),
        LABEL(BUS_HIL),
        LABEL(BUS_BLUETOOTH),
        LABEL(BUS_VIRTUAL),
        LABEL(BUS_ISA),
        LABEL(BUS_I8042),
        LABEL(BUS_XTKBD),
        LABEL(BUS_RS232),
        LABEL(BUS_GAMEPORT),
        LABEL(BUS_PARPORT),
        LABEL(BUS_AMIGA),
        LABEL(BUS_ADB),
        LABEL(BUS_I2C),
        LABEL(BUS_HOST),
        LABEL(BUS_GSC),
        LABEL(BUS_ATARI),
        LABEL(BUS_SPI),
        LABEL_END,
};

static struct label mt_tool_labels[] = {
        LABEL(MT_TOOL_FINGER),
        LABEL(MT_TOOL_PEN),
        LABEL(MT_TOOL_MAX),
        LABEL_END,
};

static struct label ff_status_labels[] = {
        LABEL(FF_STATUS_STOPPED),
        LABEL(FF_STATUS_PLAYING),
        LABEL(FF_STATUS_MAX),
        LABEL_END,
};

static struct label ff_labels[] = {
        LABEL(FF_RUMBLE),
        LABEL(FF_PERIODIC),
        LABEL(FF_CONSTANT),
        LABEL(FF_SPRING),
        LABEL(FF_FRICTION),
        LABEL(FF_DAMPER),
        LABEL(FF_INERTIA),
        LABEL(FF_RAMP),
        LABEL(FF_SQUARE),
        LABEL(FF_TRIANGLE),
        LABEL(FF_SINE),
        LABEL(FF_SAW_UP),
        LABEL(FF_SAW_DOWN),
        LABEL(FF_CUSTOM),
        LABEL(FF_GAIN),
        LABEL(FF_AUTOCENTER),
        LABEL_END,
};

static struct label key_value_labels[] = {
        { "UP", 0 },
        { "DOWN", 1 },
        { "REPEAT", 2 },
        LABEL_END,
};