fpit

static void xf86FpitSetUpAxes(DeviceIntPtr dev, FpitPrivatePtr priv)
{
    /*
     * Device reports motions on 2 axes in absolute coordinates.
     * Axes min and max values are reported in raw coordinates.
     * Resolution is computed roughly by the difference between
     * max and min values scaled from the approximate size of the
     * screen to fit one meter.
     */
    int quarter_turns;
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
        Atom axis_labels[2] = { 0, 0 };
#endif

    priv->screen_width = screenInfo.screens[priv->screen_no]->width;
    priv->screen_height = screenInfo.screens[priv->screen_no]->height;

    priv->fpitTotalOrientation = priv->fpitBaseOrientation;
    if (!priv->fpitTrackRandR)
        return;

    /* now apply transforms specified by RandR:
     * slightly complicated because invertX/Y and swapXY don't commute. */
    priv->screen_rotation = RRGetRotation(screenInfo.screens[priv->screen_no]);
    quarter_turns = (
        (priv->screen_rotation & RR_Rotate_90  ? 1 : 0) +
        (priv->screen_rotation & RR_Rotate_180 ? 2 : 0) +
        (priv->screen_rotation & RR_Rotate_270 ? 3 : 0) ) % 4;
    if (quarter_turns / 2 != 0)
        priv->fpitTotalOrientation ^= FPIT_INVERT_X | FPIT_INVERT_Y;
    if (quarter_turns % 2 != 0) {
        priv->fpitTotalOrientation ^=
            (priv->fpitTotalOrientation & FPIT_THEN_SWAP_XY ? FPIT_INVERT_X : FPIT_INVERT_Y)
            | FPIT_THEN_SWAP_XY;
    }

    if (priv->fpitTotalOrientation & FPIT_THEN_SWAP_XY) {
        InitValuatorAxisStruct(dev, 1,
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
                       axis_labels[1],
#endif
                       priv->fpitMinX, priv->fpitMaxX, 9500, 0 /* min_res */ ,
                       9500 /* max_res */ );
        InitValuatorAxisStruct(dev, 0,
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
                       axis_labels[0],
#endif
                       priv->fpitMinY, priv->fpitMaxY, 10500, 0 /* min_res */ ,
                       10500 /* max_res */ );
    } else {

/*
typo fpit...Y changed
*/

        InitValuatorAxisStruct(dev, 0,
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
                       axis_labels[0],
#endif
                       priv->fpitMinX, priv->fpitMaxX, 9500, 0 /* min_res */ ,
                       9500 /* max_res */ );
        InitValuatorAxisStruct(dev, 1,
#if GET_ABI_MAJOR(ABI_XINPUT_VERSION) >= 7
                       axis_labels[1],
#endif
                       priv->fpitMinY, priv->fpitMaxY, 10500, 0 /* min_res */ ,
                       10500 /* max_res */ );
    }
}