Configuration examples for joytokey

axes.h

static struct axis_map axes[] = {
    [0] = {
        .min_threshold = -32767,
        .min_key = { .sym = XK_Left },
        .max_threshold = 32767,
        .max_key = { .sym = XK_Right },
    },
    [1] = {
        .min_threshold = -32767,
        .min_key = { .str = "p" },
        .max_threshold = 32767,
        .max_key = { .str = "l" },
    },
};

buttons.h

static struct keydef buttons[] = {
    [0] = { .str = "q" },
    [1] = { .str = "w" },
    [2] = { .sym = XK_Up },
    [3] = { .sym = XK_Down },
};

This code is used in my blog post here: http://www.charles-keepax.co.uk/blog/KeypressesFromJoystick.html