Add new evdev input driver. This driver uses the linux input layer directly

    and can handle both mice and keyboards.
Convert this to UTF-8 again. The ChangeLog should be kept in UTF-8.

1 files changed, 671 insertions, 0 deletions

diff --git a/src/evdev.c b/src/evdev.c
new file mode 100644
index 0000000..43a2129
--- /dev/null
+++ b/src/evdev.c
@@ -0,0 +1,671 @@
+/*
+ * Copyright © 2004 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of Red Hat
+ * not be used in advertising or publicity pertaining to distribution
+ * of the software without specific, written prior permission.  Red
+ * Hat makes no representations about the suitability of this software
+ * for any purpose.  It is provided "as is" without express or implied
+ * warranty.
+ *
+ * RED HAT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+ * NO EVENT SHALL RED HAT BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+ * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author:  Kristian Høgsberg (krh@redhat.com)
+ */
+
+#include <X11/keysym.h>
+#include <X11/XF86keysym.h>
+#include <X11/extensions/XIproto.h>
+
+/* The libc wrapper just blows... linux/input.h must be included
+ * before xf86_ansic.h and xf86_libc.h so we avoid defining ioctl
+ * twice. */
+
+#include <linux/input.h>
+
+#include <misc.h>
+#include <xf86.h>
+#include <xf86str.h>
+#include <xf86_OSproc.h>
+#include <xf86_ansic.h>
+#include <xf86_libc.h>
+#include <xf86Xinput.h>
+#include <exevents.h>
+#include <mipointer.h>
+
+#include <xf86Module.h>
+
+#define ArrayLength(a) (sizeof(a) / (sizeof((a)[0])))
+
+#define MIN_KEYCODE 8
+#define GLYPHS_PER_KEY 2
+#define AltMask		Mod1Mask
+#define NumLockMask	Mod2Mask
+#define AltLangMask	Mod3Mask
+#define KanaMask	Mod4Mask
+#define ScrollLockMask	Mod5Mask
+
+#define CAPSFLAG	1
+#define NUMFLAG		2
+#define SCROLLFLAG	4
+#define MODEFLAG	8
+#define COMPOSEFLAG	16
+
+#ifndef EV_RST
+#define EV_RST EV_SYN
+#endif
+
+static int wheel_up_button = 4;
+static int wheel_down_button = 5;
+
+static void
+PostButtonClicks(InputInfoPtr pInfo, int button, int count)
+{
+    int i;
+
+    for (i = 0; i < count; i++) {
+        xf86PostButtonEvent(pInfo->dev, 0, button, 1, 0, 0);
+        xf86PostButtonEvent(pInfo->dev, 0, button, 0, 0, 0);
+    }
+}
+
+static void
+EvdevReadInput(InputInfoPtr pInfo)
+{
+    struct input_event ev;
+    int len, value;
+    int dx, dy;
+
+    dx = 0;
+    dy = 0;
+
+    while (xf86WaitForInput (pInfo->fd, 0) > 0) {
+        len = read(pInfo->fd, &ev, sizeof ev);
+        if (len != sizeof ev) {
+            /* The kernel promises that we always only read a complete
+             * event, so len != sizeof ev is an error. */
+            xf86Msg(X_ERROR, "Read error: %s\n", strerror(errno));
+            break;
+        }
+
+        /* Get the signed value, earlier kernels had this as unsigned */
+        value = ev.value;
+
+        switch (ev.type) {
+        case EV_REL:
+            switch (ev.code) {
+            case REL_X:
+                dx += value;
+                break;
+
+            case REL_Y:
+                dy += value;
+                break;
+
+            case REL_WHEEL:
+                if (value > 0)
+                    PostButtonClicks(pInfo, wheel_up_button, value);
+                if (value < 0)
+                    PostButtonClicks(pInfo, wheel_down_button, -value);
+                break;
+            }
+            break;
+
+        case EV_ABS:
+            break;
+
+        case EV_KEY:
+            switch (ev.code) {
+            case BTN_LEFT:
+            case BTN_RIGHT:
+            case BTN_MIDDLE:
+            case BTN_SIDE:
+            case BTN_EXTRA:
+            case BTN_FORWARD:
+            case BTN_BACK:
+                xf86PostButtonEvent(pInfo->dev, 0, ev.code - BTN_LEFT + 1,
+                                    value, 0, 0);
+                break;
+
+            default:
+                xf86PostKeyboardEvent(pInfo->dev,
+                                      ev.code + MIN_KEYCODE, value);
+            }
+            break;
+
+        case EV_RST:
+            break;
+        }
+    }
+
+    if (dx != 0 || dy != 0)
+        xf86PostMotionEvent(pInfo->dev, 0, 0, 2, dx, dy);
+}
+
+#define TestBit(bit, array) (array[(bit) / 8] & (1 << ((bit) % 8)))
+
+static void
+EvdevPtrCtrlProc(DeviceIntPtr device, PtrCtrl *ctrl)
+{
+    /* Nothing to do, dix handles all settings */
+}
+
+/* FIXME: this map works with evdev keyboards, but all the xkb maps
+ * probably don't.  The easiest is to remap the event keycodes.  */
+
+static KeySym map[] = {
+    /* 0x00 */  NoSymbol,       NoSymbol,
+    /* 0x01 */  XK_Escape,      NoSymbol,
+    /* 0x02 */  XK_1,           XK_exclam,
+    /* 0x03 */  XK_2,           XK_at,
+    /* 0x04 */  XK_3,           XK_numbersign,
+    /* 0x05 */  XK_4,           XK_dollar,
+    /* 0x06 */  XK_5,           XK_percent,
+    /* 0x07 */  XK_6,           XK_asciicircum,
+    /* 0x08 */  XK_7,           XK_ampersand,
+    /* 0x09 */  XK_8,           XK_asterisk,
+    /* 0x0a */  XK_9,           XK_parenleft,
+    /* 0x0b */  XK_0,           XK_parenright,
+    /* 0x0c */  XK_minus,       XK_underscore,
+    /* 0x0d */  XK_equal,       XK_plus,
+    /* 0x0e */  XK_BackSpace,   NoSymbol,
+    /* 0x0f */  XK_Tab,         XK_ISO_Left_Tab,
+    /* 0x10 */  XK_Q,           NoSymbol,
+    /* 0x11 */  XK_W,           NoSymbol,
+    /* 0x12 */  XK_E,           NoSymbol,
+    /* 0x13 */  XK_R,           NoSymbol,
+    /* 0x14 */  XK_T,           NoSymbol,
+    /* 0x15 */  XK_Y,           NoSymbol,
+    /* 0x16 */  XK_U,           NoSymbol,
+    /* 0x17 */  XK_I,           NoSymbol,
+    /* 0x18 */  XK_O,           NoSymbol,
+    /* 0x19 */  XK_P,           NoSymbol,
+    /* 0x1a */  XK_bracketleft, XK_braceleft,
+    /* 0x1b */  XK_bracketright,XK_braceright,
+    /* 0x1c */  XK_Return,      NoSymbol,
+    /* 0x1d */  XK_Control_L,   NoSymbol,
+    /* 0x1e */  XK_A,           NoSymbol,
+    /* 0x1f */  XK_S,           NoSymbol,
+    /* 0x20 */  XK_D,           NoSymbol,
+    /* 0x21 */  XK_F,           NoSymbol,
+    /* 0x22 */  XK_G,           NoSymbol,
+    /* 0x23 */  XK_H,           NoSymbol,
+    /* 0x24 */  XK_J,           NoSymbol,
+    /* 0x25 */  XK_K,           NoSymbol,
+    /* 0x26 */  XK_L,           NoSymbol,
+    /* 0x27 */  XK_semicolon,   XK_colon,
+    /* 0x28 */  XK_quoteright,  XK_quotedbl,
+    /* 0x29 */  XK_quoteleft,	XK_asciitilde,
+    /* 0x2a */  XK_Shift_L,     NoSymbol,
+    /* 0x2b */  XK_backslash,   XK_bar,
+    /* 0x2c */  XK_Z,           NoSymbol,
+    /* 0x2d */  XK_X,           NoSymbol,
+    /* 0x2e */  XK_C,           NoSymbol,
+    /* 0x2f */  XK_V,           NoSymbol,
+    /* 0x30 */  XK_B,           NoSymbol,
+    /* 0x31 */  XK_N,           NoSymbol,
+    /* 0x32 */  XK_M,           NoSymbol,
+    /* 0x33 */  XK_comma,       XK_less,
+    /* 0x34 */  XK_period,      XK_greater,
+    /* 0x35 */  XK_slash,       XK_question,
+    /* 0x36 */  XK_Shift_R,     NoSymbol,
+    /* 0x37 */  XK_KP_Multiply, NoSymbol,
+    /* 0x38 */  XK_Alt_L,	XK_Meta_L,
+    /* 0x39 */  XK_space,       NoSymbol,
+    /* 0x3a */  XK_Caps_Lock,   NoSymbol,
+    /* 0x3b */  XK_F1,          NoSymbol,
+    /* 0x3c */  XK_F2,          NoSymbol,
+    /* 0x3d */  XK_F3,          NoSymbol,
+    /* 0x3e */  XK_F4,          NoSymbol,
+    /* 0x3f */  XK_F5,          NoSymbol,
+    /* 0x40 */  XK_F6,          NoSymbol,
+    /* 0x41 */  XK_F7,          NoSymbol,
+    /* 0x42 */  XK_F8,          NoSymbol,
+    /* 0x43 */  XK_F9,          NoSymbol,
+    /* 0x44 */  XK_F10,         NoSymbol,
+    /* 0x45 */  XK_Num_Lock,    NoSymbol,
+    /* 0x46 */  XK_Scroll_Lock,	NoSymbol,
+    /* These KP keys should have the KP_7 keysyms in the numlock
+     * modifer... ? */
+    /* 0x47 */  XK_KP_Home,	XK_KP_7,
+    /* 0x48 */  XK_KP_Up,	XK_KP_8,
+    /* 0x49 */  XK_KP_Prior,	XK_KP_9,
+    /* 0x4a */  XK_KP_Subtract, NoSymbol,
+    /* 0x4b */  XK_KP_Left,	XK_KP_4,
+    /* 0x4c */  XK_KP_Begin,	XK_KP_5,
+    /* 0x4d */  XK_KP_Right,	XK_KP_6,
+    /* 0x4e */  XK_KP_Add,      NoSymbol,
+    /* 0x4f */  XK_KP_End,	XK_KP_1,
+    /* 0x50 */  XK_KP_Down,	XK_KP_2,
+    /* 0x51 */  XK_KP_Next,	XK_KP_3,
+    /* 0x52 */  XK_KP_Insert,	XK_KP_0,
+    /* 0x53 */  XK_KP_Delete,	XK_KP_Decimal,
+    /* 0x54 */  NoSymbol,	NoSymbol,
+    /* 0x55 */  XK_F13,		NoSymbol,
+    /* 0x56 */  XK_less,	XK_greater,
+    /* 0x57 */  XK_F11,		NoSymbol,
+    /* 0x58 */  XK_F12,		NoSymbol,
+    /* 0x59 */  XK_F14,		NoSymbol,
+    /* 0x5a */  XK_F15,		NoSymbol,
+    /* 0x5b */  XK_F16,		NoSymbol,
+    /* 0x5c */  XK_F17,		NoSymbol,
+    /* 0x5d */  XK_F18,		NoSymbol,
+    /* 0x5e */  XK_F19,		NoSymbol,
+    /* 0x5f */  XK_F20,		NoSymbol,
+    /* 0x60 */  XK_KP_Enter,	NoSymbol,
+    /* 0x61 */  XK_Control_R,	NoSymbol,
+    /* 0x62 */  XK_KP_Divide,	NoSymbol,
+    /* 0x63 */  XK_Print,	XK_Sys_Req,
+    /* 0x64 */  XK_Alt_R,	XK_Meta_R,
+    /* 0x65 */  NoSymbol,	NoSymbol, /* KEY_LINEFEED */
+    /* 0x66 */  XK_Home,	NoSymbol,
+    /* 0x67 */  XK_Up,		NoSymbol,
+    /* 0x68 */  XK_Prior,	NoSymbol,
+    /* 0x69 */  XK_Left,	NoSymbol,
+    /* 0x6a */  XK_Right,	NoSymbol,
+    /* 0x6b */  XK_End,		NoSymbol,
+    /* 0x6c */  XK_Down,	NoSymbol,
+    /* 0x6d */  XK_Next,	NoSymbol,
+    /* 0x6e */  XK_Insert,	NoSymbol,
+    /* 0x6f */  XK_Delete,	NoSymbol,
+    /* 0x6f */  NoSymbol,	NoSymbol, /* KEY_MACRO */
+    /* 0x70 */  NoSymbol,	NoSymbol,
+    /* 0x71 */  NoSymbol,	NoSymbol,
+    /* 0x72 */  NoSymbol,	NoSymbol,
+    /* 0x73 */  NoSymbol,	NoSymbol,
+    /* 0x74 */  NoSymbol,	NoSymbol,
+    /* 0x75 */  XK_KP_Equal,	NoSymbol,
+    /* 0x76 */  NoSymbol,	NoSymbol,
+    /* 0x77 */  NoSymbol,	NoSymbol,
+    /* 0x78 */  XK_F21,		NoSymbol,
+    /* 0x79 */  XK_F22,		NoSymbol,
+    /* 0x7a */  XK_F23,		NoSymbol,
+    /* 0x7b */  XK_F24,		NoSymbol,
+    /* 0x7c */  XK_KP_Separator, NoSymbol,
+    /* 0x7d */  XK_Meta_L,	NoSymbol,
+    /* 0x7e */  XK_Meta_R,	NoSymbol,
+    /* 0x7f */  XK_Multi_key,	NoSymbol,
+};
+
+static void
+EvdevKbdBell(int percent, DeviceIntPtr dev, pointer ctrl, int unused)
+{
+    /* hat */
+}
+
+static void
+EvdevKbdCtrl(DeviceIntPtr device, KeybdCtrl *ctrl)
+{
+    static struct { int xbit, code; } bits[] = {
+        { CAPSFLAG,	LED_CAPSL },
+        { NUMFLAG,	LED_NUML },
+        { SCROLLFLAG,	LED_SCROLLL },
+        { MODEFLAG,	LED_KANA },
+        { COMPOSEFLAG,	LED_COMPOSE }
+    };
+
+    InputInfoPtr pInfo;
+    struct input_event ev[ArrayLength(bits)];
+    int i;
+
+    pInfo = device->public.devicePrivate;
+    for (i = 0; i < ArrayLength(bits); i++) {
+        ev[i].type = EV_LED;
+        ev[i].code = bits[i].code;
+        ev[i].value = (ctrl->leds & bits[i].xbit) > 0;
+    }
+
+    write(pInfo->fd, ev, sizeof ev);
+}
+
+static int
+EvdevAddKeyClass(DeviceIntPtr device)
+{
+    InputInfoPtr pInfo;
+    KeySymsRec keySyms;
+    CARD8 modMap[MAP_LENGTH];
+    KeySym sym;
+    int i, j;
+
+    static struct { KeySym keysym; CARD8 mask; } modifiers[] = {
+        { XK_Shift_L,		ShiftMask },
+        { XK_Shift_R, 		ShiftMask },
+        { XK_Control_L,		ControlMask },
+        { XK_Control_R,		ControlMask },
+        { XK_Caps_Lock,		LockMask },
+        { XK_Alt_L,		AltMask },
+        { XK_Alt_R,		AltMask },
+        { XK_Num_Lock,		NumLockMask },
+        { XK_Scroll_Lock,	ScrollLockMask },
+        { XK_Mode_switch,	AltLangMask }
+    };
+
+    /* TODO:
+     * Ctrl-Alt-Backspace and other Ctrl-Alt-stuff should work
+     * XKB, let's try without the #ifdef nightmare
+     * Get keyboard repeat under control (right now caps lock repeats!)
+     */
+
+    pInfo = device->public.devicePrivate;
+
+     /* Compute the modifier map */
+    memset(modMap, 0, sizeof modMap);
+
+    for (i = 0; i < ArrayLength(map) / GLYPHS_PER_KEY; i++) {
+        sym = map[i * GLYPHS_PER_KEY];
+        for (j = 0; j < ArrayLength(modifiers); j++) {
+            if (modifiers[j].keysym == sym)
+                modMap[i + MIN_KEYCODE] = modifiers[j].mask;
+        }
+    }
+
+    keySyms.map        = map;
+    keySyms.mapWidth   = GLYPHS_PER_KEY;
+    keySyms.minKeyCode = MIN_KEYCODE;
+    keySyms.maxKeyCode = MIN_KEYCODE + ArrayLength(map) / GLYPHS_PER_KEY - 1;
+
+    if (!InitKeyClassDeviceStruct(device, &keySyms, modMap))
+        return !Success;
+
+    if (!InitFocusClassDeviceStruct(device))
+        return !Success;
+
+    if (!InitKbdFeedbackClassDeviceStruct(device, EvdevKbdBell, EvdevKbdCtrl))
+        return !Success;
+
+    pInfo->flags |= XI86_KEYBOARD_CAPABLE;
+
+    return Success;
+}
+
+static int
+EvdevAddRelClass(DeviceIntPtr device)
+{
+    InputInfoPtr pInfo;
+
+    pInfo = device->public.devicePrivate;
+
+    if (!InitValuatorClassDeviceStruct(device, 2, 
+                                       miPointerGetMotionEvents,
+                                       miPointerGetMotionBufferSize(), 0))
+        return !Success;
+
+    /* X valuator */
+    xf86InitValuatorAxisStruct(device, 0, 0, -1, 1, 0, 1);
+    xf86InitValuatorDefaults(device, 0);
+
+    /* Y valuator */
+    xf86InitValuatorAxisStruct(device, 1, 0, -1, 1, 0, 1);
+    xf86InitValuatorDefaults(device, 1);
+    xf86MotionHistoryAllocate(pInfo);
+
+    if (!InitPtrFeedbackClassDeviceStruct(device, EvdevPtrCtrlProc))
+        return !Success;
+
+    return Success;
+}
+
+static int
+EvdevAddButtonClass(DeviceIntPtr device)
+{
+    CARD8 map[32];
+    InputInfoPtr pInfo;
+    int i;
+
+    pInfo = device->public.devicePrivate;
+
+    /* FIXME: count number of actual buttons */
+
+    for (i = 0; i < ArrayLength(map); i++)
+        map[i] = i;
+
+    /* Linux reports BTN_LEFT, BTN_RIGHT, BTN_MIDDLE, which should map
+     * to buttons 1, 2 and 3, so swap 2 and 3 in the map */
+    map[2] = 3;
+    map[3] = 2;
+
+    if (!InitButtonClassDeviceStruct(device, ArrayLength(map), map))
+        return !Success;
+
+    pInfo->flags |= XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS;
+
+    return Success;
+}
+
+static int
+EvdevInit(DeviceIntPtr device)
+{
+    InputInfoPtr pInfo;
+
+    pInfo = device->public.devicePrivate;
+
+    /* FIXME: This doesn't add buttons for keyboards with
+     * scrollwheels. */
+
+    if (pInfo->flags & XI86_KEYBOARD_CAPABLE) {
+	EvdevAddKeyClass(device);
+    }
+
+    if (pInfo->flags & XI86_POINTER_CAPABLE) {
+	EvdevAddButtonClass(device);
+	EvdevAddRelClass(device);
+    }
+
+    return Success;
+}
+
+static int
+EvdevProc(DeviceIntPtr device, int what)
+{
+    InputInfoPtr pInfo;
+
+    pInfo = device->public.devicePrivate;
+
+    switch (what)
+    {
+    case DEVICE_INIT:
+	return EvdevInit(device);
+
+    case DEVICE_ON:
+        xf86AddEnabledDevice(pInfo);
+	device->public.on = TRUE;
+	break;
+	    
+    case DEVICE_OFF:
+        xf86RemoveEnabledDevice(pInfo);
+	device->public.on = FALSE;
+	break;
+
+    case DEVICE_CLOSE:
+	xf86Msg(X_INFO, "%s: Close\n", pInfo->name);
+	break;
+    }
+
+    return Success;
+}
+
+static Bool
+EvdevConvert(InputInfoPtr pInfo, int first, int num, int v0, int v1, int v2,
+	     int v3, int v4, int v5, int *x, int *y)
+{
+    if (first == 0 && num == 2) {
+        *x = v0;
+        *y = v1;
+        return TRUE;
+    }
+    else
+        return FALSE;
+}
+
+static void
+EvdevProbe(InputInfoPtr pInfo)
+{
+    char key_bitmask[(KEY_MAX + 7) / 8];
+    char rel_bitmask[(REL_MAX + 7) / 8];
+    int i, has_axes, has_buttons, has_keys;
+
+    if (ioctl(pInfo->fd, 
+              EVIOCGBIT(EV_REL, sizeof(rel_bitmask)), rel_bitmask) < 0) {
+        xf86Msg(X_ERROR, "ioctl EVIOCGBIT failed: %s\n", strerror(errno));
+        return;
+    }
+
+    if (ioctl(pInfo->fd,
+              EVIOCGBIT(EV_KEY, sizeof(key_bitmask)), key_bitmask) < 0) {
+        xf86Msg(X_ERROR, "ioctl EVIOCGBIT failed: %s\n", strerror(errno));
+        return;
+    }
+
+    has_axes = FALSE;
+    has_buttons = FALSE;
+    has_keys = FALSE;
+
+    if (TestBit(REL_X, rel_bitmask) && TestBit(REL_Y, rel_bitmask)) {
+        xf86Msg(X_INFO, "%s: Found x and y relative axes\n", pInfo->name);
+	has_axes = TRUE;
+    }
+      
+
+    if (TestBit(BTN_LEFT, key_bitmask)) {
+        xf86Msg(X_INFO, "%s: Found mouse buttons\n", pInfo->name);
+	has_buttons = TRUE;
+    }
+
+    for (i = 0; i < BTN_MISC; i++)
+        if (TestBit(i, key_bitmask))
+            break;
+
+    if (i < BTN_MISC) {
+        xf86Msg(X_INFO, "%s: Found keys\n", pInfo->name);
+	has_keys = TRUE;
+    }
+
+    if (has_axes && has_buttons) {
+        xf86Msg(X_INFO, "%s: Configuring as mouse\n", pInfo->name);
+	pInfo->flags |= XI86_POINTER_CAPABLE | XI86_SEND_DRAG_EVENTS | 
+	    XI86_CONFIGURED;
+	pInfo->type_name = XI_MOUSE;
+    }
+    
+    if (has_keys) {
+        xf86Msg(X_INFO, "%s: Configuring as keyboard\n", pInfo->name);
+	pInfo->flags |= XI86_KEYBOARD_CAPABLE | XI86_CONFIGURED;
+	pInfo->type_name = XI_KEYBOARD;
+    }
+
+    if ((pInfo->flags & XI86_CONFIGURED) == 0) {
+        xf86Msg(X_WARNING, "%s: Don't know how to use device\n",
+		pInfo->name);
+    }
+
+    return;
+}
+
+static InputInfoPtr
+EvdevPreInit(InputDriverPtr drv, IDevPtr dev, int flags)
+{
+    InputInfoPtr pInfo;
+    MessageType deviceFrom = X_CONFIG;
+    const char *device;
+
+    if (!(pInfo = xf86AllocateInput(drv, 0)))
+	return NULL;
+
+    /* Initialise the InputInfoRec. */
+    pInfo->name = dev->identifier;
+    pInfo->flags = 0;
+    pInfo->type_name = "UNKNOWN";
+    pInfo->device_control = EvdevProc;
+    pInfo->read_input = EvdevReadInput;
+    pInfo->motion_history_proc = xf86GetMotionEvents;
+    pInfo->history_size = 0;
+    pInfo->control_proc = NULL;
+    pInfo->close_proc = NULL;
+    pInfo->switch_mode = NULL;
+    pInfo->conversion_proc = EvdevConvert;
+    pInfo->reverse_conversion_proc = NULL;
+    pInfo->dev = NULL;
+    pInfo->private_flags = 0;
+    pInfo->always_core_feedback = 0;
+    pInfo->conf_idev = dev;
+
+    xf86CollectInputOptions(pInfo, NULL, NULL);
+    xf86ProcessCommonOptions(pInfo, pInfo->options); 
+
+    device = xf86CheckStrOption(dev->commonOptions, "Device", NULL);
+    if (!device) {
+        xf86Msg(X_ERROR, "%s: No device specified.\n", pInfo->name);
+        return pInfo;
+    }
+	
+    xf86Msg(deviceFrom, "%s: Device: \"%s\"\n", pInfo->name, device);
+    do {
+        pInfo->fd = open(device, O_RDWR, 0);
+    }
+    while (pInfo->fd < 0 && errno == EINTR);
+
+    if (pInfo->fd < 0) {
+        xf86Msg(X_ERROR, "Unable to open evdev device \"%s\".\n", device);
+        return pInfo;
+    }
+
+    EvdevProbe(pInfo);
+
+    return pInfo;
+}
+
+InputDriverRec EVDEV = {
+    1,
+    "evdev",
+    NULL,
+    EvdevPreInit,
+    NULL,
+    NULL,
+    0
+};
+
+static void
+EvdevUnplug(pointer	p)
+{
+}
+
+static pointer
+EvdevPlug(pointer	module,
+          pointer	options,
+          int		*errmaj,
+          int		*errmin)
+{
+    xf86AddInputDriver(&EVDEV, module, 0);
+    return module;
+}
+
+static XF86ModuleVersionInfo EvdevVersionRec =
+{
+    "evdev",
+    MODULEVENDORSTRING,
+    MODINFOSTRING1,
+    MODINFOSTRING2,
+    0, /* Missing from SDK: XORG_VERSION_CURRENT, */
+    1, 0, 0,
+    ABI_CLASS_XINPUT,
+    ABI_XINPUT_VERSION,
+    MOD_CLASS_XINPUT,
+    {0, 0, 0, 0}
+};
+
+XF86ModuleData evdevModuleData =
+{
+    &EvdevVersionRec,
+    EvdevPlug,
+    EvdevUnplug
+};