Patch for KOReader to show a menu entry for usbnet toggle in the network menu

2-toggle-usbnet.lua

-- a patch for KOReader to add a menu entry for usbnet toggle in the network menu
-- for usage on a Kobo eReader

local logger = require("logger")

local usbnet_toggle_path = "/usr/bin/usbnet-toggle"

if lfs.attributes(usbnet_toggle_path, "mode") == "file" then

    local reader_menu_order = require("ui/elements/reader_menu_order")
    table.insert(reader_menu_order.network, 2, "network_toggle_usbnet")

    local NetworkMgr = require("ui/network/manager")
    local _getMenuTable = NetworkMgr.getMenuTable

    NetworkMgr.getMenuTable = function(self, common_settings)
        _getMenuTable(self, common_settings)
        common_settings.network_toggle_usbnet = {
            text = "USBNetwork",
            callback = function()
                os.execute("/bin/sh " .. usbnet_toggle_path)
            end,
            checked_func = function(touchmenu_instance)
                return os.execute("ifconfig | grep usb0") == 0
            end,
        }
    end
else
   logger.dbg(usbnet_toggle_path, "not found")
end