/dev/sdio/slotw is a device referenced by the SD libraries in the SDK, but does not seem to exist in IOS. It is used when opening SD slot 2 in the SDK, and has been reported to be connected to the WiFi module.
Please enable JavaScript to pass antispam protection!Here are the instructions how to enable JavaScript in your web browser http://www.enable-javascript.com.Antispam by CleanTalk.