SvennoJ said:
I posted my findings in this thread |
Thanks for the heads up, already saw the great posts you made there.
Still not sure what protocol the Gamepad uses since Miracast/WiDi/etc all have an inherent lag.
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Did a little research (I've tried before during launch but nothing came up) and there are little snippets:
- It uses a modified Wi-Fi protocol designed for low-latency transmission, establishing its connection with the console by using a variant of the WPS process, with proprietary transfer protocol and software co-developed with Broadcom [source]
- Controller inputs themselves are beamed back to the Wii U via the same WiFi channel (180 times per second) [source]
- And some actual unfiltered information [source]:
While some “journalists” reported that the Wii U gamepad is using the Miracast technology, a Wi-Fi standard, it turned out that this was never the case. Instead, Nintendo decided to reinvent four different protocols (video streaming, audio streaming, input streaming as well as a light request-reply RPC protocol), and embed them in a slightly obfuscated version of WPA2, sent over the air using 5GHz Wi-Fi 802.11n. A small ARM CPU is embedded in the Wii U Gamepad (codenamed DRC) and runs a realtime operating system to handle network communication. In the Wii U, another ARM CPU (codenamed DRH) does the same thing. |
Sorry for going off-topic guys :)