Solved WLAN issue after upgrade 11.2 -> 12.0, no urtwn

Hi all.

I just upgraded my system from 11.2-RELEASE to 12.0-RELEASE. It seems to have been working well, but I can't start my wlan-connection.
(although there had been many messages kind of mkdir: no such file ///usr/share....)

I am using a usb wlan stick TP-Link TL-WN725N, as the internal wlan module isn't supported yet or at least hadn't been (Qualcomm 344A-AC). It worked quite well with the urtwn module, but that isn't there anymore? So I can't kldload urtwn to kick up my wlan adapter.

The release notes (https://www.freebsd.org/releases/12.0R/relnotes.html) don't mention the urtwn driver, so I don't know how to start the wlan adapter.

Can anyone give me advice how to get my wlan up and running?

Thanks, Jochen

EDIT: the Qualcomm chip is also knwon as Atheros QCA6174
 
A similar thing happened to the igb(4) driver, it got rolled into the em(4) driver. Loading em(4) creates igb* interfaces which can be a bit confusing.

No mention of this change in the release notes either. But it is mentioned in /usr/src/UPDATING:
Code:
20170109:
        The igb(4), em(4) and lem(4) ethernet drivers are now implemented via
        IFLIB.  If you have a custom kernel configuration that excludes em(4)
        but you use igb(4), you need to re-add em(4) to your custom configuration.
Code:
20161017:
        The urtwn(4) driver was merged into rtwn(4) and now consists of
        rtwn(4) main module + rtwn_usb(4) and rtwn_pci(4) bus-specific
        parts.
        Also, firmware for RTL8188CE was renamed due to possible name
        conflict (rtwnrtl8192cU(B) -> rtwnrtl8192cE(B))
 
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