unable to put RTL8192SU in master mode

unable to put RTL8192SU in master mode

[raghunathan.kailasanathan]

Hi folks,
I have a USB dongle with realtek 8192SU wireless chipset and am using the 8712u linux driver.

Since this driver is not mac80211 compliant I am using iwconfig to change the mode to "master". Though this
command successfully changes the mode I am unable to connect to this AP from another station, even using
unsecured method. It does not even show up in the station scan list.  Are there some other params I need to 
set using iwconfig ?

Or is the 8712u driver not supporting master mode "sufficiently" enough ?...in which case is some latest
driver available for this thing?

Thanks
RK

Re: unable to put RTL8192SU in master mode

[Larry Finger]

On 01/27/2011 07:31 AM, raghunathan.kailasanathan@wipro.com wrote:
> Hi folks,
> I have a USB dongle with realtek 8192SU wireless chipset and am using the 8712u linux driver.

The driver from the Realtek web site is named 8712u, and the one in the kernel
staging tree (2.6.37 and later) is called r8712u. Which one are you using? They
are not the same.

> Since this driver is not mac80211 compliant I am using iwconfig to change the mode to "master". Though this
> command successfully changes the mode I am unable to connect to this AP from another station, even using
> unsecured method. It does not even show up in the station scan list.  Are there some other params I need to 
> set using iwconfig ?
> 
> Or is the 8712u driver not supporting master mode "sufficiently" enough ?...in which case is some latest
> driver available for this thing?

Master mode with r8712u has not been tested. The driver I started with has a
configuration parameter that enables "AP mode". I kept that in, but I do not
know if it works.

Larry

RE: unable to put RTL8192SU in master mode

[raghunathan.kailasanathan]

> -----Original Message-----
> From: Larry Finger [mailto:larry.finger@gmail.com] On Behalf Of Larry
> Finger
> The driver from the Realtek web site is named 8712u, and the one in the
> kernel
> staging tree (2.6.37 and later) is called r8712u. Which one are you
> using? They
> are not the same.
> 

Thanks Larry. I am using the 8712u, so it should be the realtek one. I am on
a older kernel (2.6.27) hence using the staging one would require some backporting 
effort.

BTW what are the key differences between both ? 


--RK

Re: unable to put RTL8192SU in master mode

[Larry Finger]

On 01/27/2011 10:05 PM, raghunathan.kailasanathan@wipro.com wrote:
>
> 
> Thanks Larry. I am using the 8712u, so it should be the realtek one. I am on
> a older kernel (2.6.27) hence using the staging one would require some backporting 
> effort.
> 
> BTW what are the key differences between both ? 

Only that r8712u works on 64-bit systems. In addition, it was cleaned up for
kernel inclusion. My starting source was a beta version that never got released.

Because it does not use mac80211, backporting might not be that difficult.

Larry