Rtlwifi with hostapd

Rtlwifi with hostapd

[Viktar Palstsiuk]

Hello

I'm trying to run RTL8192DE-based wifi module in AP mode using hostapd.
RTL8192DE is connected to Marvell Kirkwood CPU using PCI Express bus.
But the kernel hangs right after hostapd was started.
In STA mode it is possible to scan for networks in 2.4 GHz band and it
discovers ~10 APs.
Was rtlwifi driver tested to work with hostapd?
I've tried compat-wireless-2011-12-01 and
92ce_se_de_linux_mac80211_0005.1230.2011.tar.gz from Realtek site.

--
Best regards,
Viktar Palstsiuk

Re: Rtlwifi with hostapd

[Larry Finger]

On 04/19/2012 03:25 AM, Viktar Palstsiuk wrote:
> Hello
>
> I'm trying to run RTL8192DE-based wifi module in AP mode using hostapd.
> RTL8192DE is connected to Marvell Kirkwood CPU using PCI Express bus.
> But the kernel hangs right after hostapd was started.
> In STA mode it is possible to scan for networks in 2.4 GHz band and it
> discovers ~10 APs.
> Was rtlwifi driver tested to work with hostapd?
> I've tried compat-wireless-2011-12-01 and
> 92ce_se_de_linux_mac80211_0005.1230.2011.tar.gz from Realtek site.

without knowing any details of the kernel hangs, it is impossible to know what 
might be wrong. If you switch to the logging console immediately upon starting 
hostapd, is anything reported on the screen?

I have not used the RTL8192DE as an AP, but the SE variety does work. There are 
some important fixes for AP mode that are not in compat-wireless as old as the 
one you are using. Please try a version from this week. Those fixes are also not 
included in the driver on the Realtek site.

What kernel version are you using? Is there a possibility to switch to the 
kernel from the wireless-testing git tree?

Larry

Re: Rtlwifi with hostapd

[Viktar Palstsiuk]

I'm using 2.6.37 which is in OpenWRT's trunk for kirkwood platform.
I've compiled compat-wireless-2012-04-17 and now RTL8192DE doesn't
hang during hostapd start.
But the AP can't be found during scan performed on PC.

root@CPE:/# dmesg | grep rtl
[   12.203143] rtl8192de: FW Power Save off (module option)
[   12.208714] rtl8192de: Driver for Realtek RTL8192DE WLAN interface
[   12.214945] rtl8192de: Loading firmware file rtlwifi/rtl8192defw.bin
[   12.248888] rtl8192de: FW Power Save off (module option)
[   12.254450] rtl8192de: Driver for Realtek RTL8192DE WLAN interface
[   12.260680] rtl8192de: Loading firmware file rtlwifi/rtl8192defw.bin
[   12.370814] ieee80211 phy1: Selected rate control algorithm 'rtl_rc'
[   12.371499] rtlwifi: wireless switch is on
[   12.380271] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[   12.380947] rtlwifi: wireless switch is on
root@CPE:/# lsmod | grep rtl
rtl8192de              95684  0
rtl8192ce              46108  0
rtl8192c_common        31104  1 rtl8192ce
rtlwifi                49488  2 rtl8192de,rtl8192ce
mac80211              234384  7
ath9k,rtl8192ce,rtl8192c_common,rt2800lib,rtlwifi,rt2x00pci,rt2x00lib
cfg80211              133544  5 ath9k,rtlwifi,ath,rt2x00lib,mac80211
compat                  5872  9
rt2800pci,ath9k,rtl8192de,rtl8192ce,ath9k_common,ath9k_hw,rtlwifi,mac80211,cfg80211
root@CPE:/# dmesg | grep compat-wireless
[   10.704691] Compat-wireless backport release:
compat-wireless-2012-04-17-1-r779

Also I've tried to install RTL8192CE into the same board and it worked
well in AP mode, so I managed to connect to it.

On Thu, Apr 19, 2012 at 8:39 PM, Larry Finger <Larry.Finger@lwfinger.net> wrote:
> On 04/19/2012 03:25 AM, Viktar Palstsiuk wrote:
>>
>> Hello
>>
>> I'm trying to run RTL8192DE-based wifi module in AP mode using hostapd.
>> RTL8192DE is connected to Marvell Kirkwood CPU using PCI Express bus.
>> But the kernel hangs right after hostapd was started.
>> In STA mode it is possible to scan for networks in 2.4 GHz band and it
>> discovers ~10 APs.
>> Was rtlwifi driver tested to work with hostapd?
>> I've tried compat-wireless-2011-12-01 and
>> 92ce_se_de_linux_mac80211_0005.1230.2011.tar.gz from Realtek site.
>
>
> without knowing any details of the kernel hangs, it is impossible to know
> what might be wrong. If you switch to the logging console immediately upon
> starting hostapd, is anything reported on the screen?
>
> I have not used the RTL8192DE as an AP, but the SE variety does work. There
> are some important fixes for AP mode that are not in compat-wireless as old
> as the one you are using. Please try a version from this week. Those fixes
> are also not included in the driver on the Realtek site.
>
> What kernel version are you using? Is there a possibility to switch to the
> kernel from the wireless-testing git tree?
>
> Larry
>



-- 
Best regards,
Viktar Palstsiuk

--
Software engineer
Promwad Innovation Company
22, Olshevskogo St.,
220073, Minsk, BELARUS
Phone/Fax: +375 (17) 312-12-46
E-mail: viktar.palstsiuk@promwad.com
Skype: vipals
Web: www.promwad.com