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homeworkc / lazycast

A Simple Wireless Display Receiver
GNU General Public License v3.0
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implementation on RPI+3b #23

Closed speicherspule closed 5 years ago

speicherspule commented 5 years ago

Hey, ii'm trying to implement this on last rpi 3b+ and take advantage on 802.11ac and 5ghz that this rpi offers. As far i can understand, i can add on the all.sh file "freq=5" to use 5GHz mode. Is it possible to add dual-band(2.4 and 5ghz) compatibilty? and is it possible to use 802.11ac p2p connection to have a more stable connection and better latency?

Another question, is it possible to add support to multigestures using UIBC? Is there any document regarding uibc that i can read?

homeworkc commented 5 years ago

At first glance, it seems like wifi p2p/wifi direct has yet to support 802.11ac: https://www.wi-fi.org/knowledge-center/faq/does-wi-fi-direct-work-on-80211-abgn. It is certainly possible to support to multigestures and there are multiple ways of implementation. In the spec, there are 2 UIBC protocols. One is receiving custom messages defined in the spec. (/control/control.c uses this protocol.) The other is receiving standard HID device descriptors and reports (defined in many USB specs.) (/control/controlhidc.c uses this protocol.) Personally I would recommend using the HID protocol, but some sources (e.g., Windows 8.1) does not support it and it is a bit harder to code. On the receiver side, you also need some library to capture the multigesture input. libinput seems to be a good candidate. (In fact, I wanted to adopt libinput for the keyboard/mouse capture but I never found the time to do so.)