Hi,
I have one of those tiny USB wifi dongles. Its chipset is RTL8188CUS, which seems to power many of this type of device. The drivers which come with kernel 3.1.X just don't work. The driver is loaded, the networks are scanned properly, but it won't connect - it just keeps asking for the WEP key, or the WPA key on a WPA network.
There are lots of forum posts for various distributions indicating that people have had success with the Realtek drivers, but not since kernel 2.6.X. The current version of the driver on the Realtek site claims to work for kernels up to 3.0.2, but I built and installed it, and it doesn't work on kernel 3.1.6.
I just received kernel 3.1.7 in the latest batch of updates, so I tried again with the built-in driver, but no success.
I don't know if it is related, but I am getting lots of these in the log:
[ 4484.413389] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413391] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413393] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413395] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413397] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413399] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413401] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413403] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413405] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
[ 4484.413407] xhci_hcd 0000:05:00.0: ERROR no room on ep ring
Any ideas?
Thanks,
Ned
---------- Post added at 12:24 PM ---------- Previous post was at 08:22 AM ----------
Hi,
I discovered that the problem was not with the kernel driver for the RTL8188CUS chip. Without realising it, I was plugging the dongle into a USB-3 port, as it was the only one available on the front panel of the computer. When I plugged the dongle into a USB-2 port, it connected straight away.
So, is this a problem with the xhci driver? Should the device work in a USB-3 port? That driver is where all those error messages were coming from in my previous post.
So, I'm happy that the dongle works, but concerned about the USB-3 support.
Regards,
Ned
Threaded Mode
