+
+usbdev = s:option(ListValue, "_usb_dev", translate("USB Device"))
+usbdev:depends("trigger", "usbdev")
+usbdev.rmempty = true
+usbdev:value("")
+
+function usbdev.cfgvalue(self, section)
+ return m.uci:get("system", section, "dev")
+end
+
+function usbdev.write(self, section, value)
+ m.uci:set("system", section, "dev", value)
+end
+
+function usbdev.remove(self, section)
+ local t = trigger:formvalue(section)
+ if t ~= "netdev" and t ~= "usbdev" then
+ m.uci:delete("system", section, "dev")
+ end
+end
+
+for p in nixio.fs.glob("/sys/bus/usb/devices/[0-9]*/manufacturer") do
+ local id = p:match("%d+-%d+")
+ local mf = nixio.fs.readfile("/sys/bus/usb/devices/" .. id .. "/manufacturer")
+ local pr = nixio.fs.readfile("/sys/bus/usb/devices/" .. id .. "/product")
+ usbdev:value(id, "%s (%s - %s)" %{ id, mf, pr })
+end
+