Support for TP-Link T4UH wfi ac usb adapter

[fzinken]

@chsims1

I did try plugging it in,

Posting the dmesg log when booting with the stick inserted would give a base of investigation for us.
Because as you can see in several posts the rtl8812au chipset should be supported

Test Edimax EW-7822UAC and NETGEAR A6200

Not true at all, if by 10MB/sec you mean 80Mbps. On my Pi 2 with an Edimax EW-7811UTC I have measured throughput of as high as 130Mbps (yes faster than Ethernet) on 5Ghz in the same room as the base station. (This adaptor is much slower on 2.4Ghz though as it does not support MIMO) With a TP-Link TL-WN823N I can achieve 115Mbps in the same room on 2.4Ghz. (This adaptor does not support 5Ghz but does support 2x MIMO) These throughputs were all measured using iperf to an Ethernet connected Mac…