Function HIDAPI_AddDevice

deps/SDL2/src/joystick/hidapi/SDL_hidapijoystick.c:649–768

}

static void
HIDAPI_AddDevice(struct hid_device_info *info)
{
    SDL_HIDAPI_Device *device;
    SDL_HIDAPI_Device *curr, *last = NULL;

    for (curr = SDL_HIDAPI_devices, last = NULL; curr; last = curr, curr = curr->next) {
        continue;
    }

    device = (SDL_HIDAPI_Device *)SDL_calloc(1, sizeof(*device));
    if (!device) {
        return;
    }
    device->path = SDL_strdup(info->path);
    if (!device->path) {
        SDL_free(device);
        return;
    }
    device->seen = SDL_TRUE;
    device->vendor_id = info->vendor_id;
    device->product_id = info->product_id;
    device->version = info->release_number;
    device->interface_number = info->interface_number;
    device->interface_class = info->interface_class;
    device->interface_subclass = info->interface_subclass;
    device->interface_protocol = info->interface_protocol;
    device->usage_page = info->usage_page;
    device->usage = info->usage;
    {
        /* FIXME: Is there any way to tell whether this is a Bluetooth device? */
        const Uint16 vendor = device->vendor_id;
        const Uint16 product = device->product_id;
        const Uint16 version = device->version;
        Uint16 *guid16 = (Uint16 *)device->guid.data;

        *guid16++ = SDL_SwapLE16(SDL_HARDWARE_BUS_USB);
        *guid16++ = 0;
        *guid16++ = SDL_SwapLE16(vendor);
        *guid16++ = 0;
        *guid16++ = SDL_SwapLE16(product);
        *guid16++ = 0;
        *guid16++ = SDL_SwapLE16(version);
        *guid16++ = 0;

        /* Note that this is a HIDAPI device for special handling elsewhere */
        device->guid.data[14] = 'h';
        device->guid.data[15] = 0;
    }
    device->dev_lock = SDL_CreateMutex();

    /* Need the device name before getting the driver to know whether to ignore this device */
    if (!device->name) {
        const char *name = SDL_GetCustomJoystickName(device->vendor_id, device->product_id);
        if (name) {
            device->name = SDL_strdup(name);
        }
    }