[FS#823] USB WIFI dongle TP-LINK TP-WN726N 1.0(rt8188eus) cannot be recognized by system

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Anderson Chen (yaonanchan) 

Attached to Project - LEDE Project
Summary - USB WIFI dongle TP-LINK TP-WN726N 1.0(rt8188eus) cannot be recognized by system
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Critical
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Supply the following if possible:
 - Device problem occurs on Raspberry Pi 3 Model B Rev 1.2, TP-LINK TP-WN726N 1.0(rt8188eus) USB WIFI dongle
 - Software versions of LEDE release, r4297-1893b56 / LuCI Master (git-17.152.36261-b6dd992)
 - Steps to reproduce:
   1. Compile rom with rt8xxxu driver and firmware.
   2. Insert TP-LINK TP-WN726N 1.0(rt8188eus) USB WIFI dongle
   3. Boot the system, log is attached.
   4. Type command "cat /ect/config/wireless" in console, TP-WN726N info is listed.
   5. Type command "ifconfig" in console, observe that TP-WN726N is not listed.
   6. Go to Luci web management tool, observe that TP-WN726N is listed, without signal strength. 
- More info:
   TP-LINK TP-WN726N 1.0(rt8188eus) USB WIFI dongle is tested on PC with Ubuntu 16.04, works fine.



One or more files have been attached.

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=823