Driver support for RTL8188{C,CU,CUS} wifi chips

Petros Aggelatos petrosagg at gmail.com
Wed Feb 25 15:13:51 EST 2015


Hi,

I have an Edimax wifi adapter which uses the RTL8188CU chipset but it
doesn't work in AP mode with the current hostapd/wpa_supplicant.

This is the error I'm getting:

nl80211: Driver does not support authentication/association or connect
commands
nl80211: Remove monitor interface: refcount=0
netlink: Operstate: ifindex=4 linkmode=0 (kernel-control), operstate=6
(IF_OPER_UP)
nl80211: Set mode ifindex 4 iftype 2 (STATION)
nl80211: Failed to set interface 4 to mode 2: -19 (No such device)
nl80211 driver initialization failed.

After looking around it turns out Realtek had once released a modified
hostapd (back in version 0.8.0) that indeed makes the chipset work. I also
found a Github repo of just the patches modified to work with modern
versions of hostapd [1].

My question is if accepting these patches upstream is something that you
want. I'm currently trying to make them work with the latest git tree
because I need it for a project I work on and it would be really nice if
this chipset was supported out of the box.

What do you think?

Best regards,
Petros Angelatos

[1] https://github.com/pritambaral/hostapd-rtl871xdrv
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