From mboxrd@z Thu Jan  1 00:00:00 1970
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Tue, 30 Jul 2013 22:35:15 +0200
Subject: [ath9k-devel] Why Realtek instead of ath9K or carl9170??
In-Reply-To: <51F7D845.1000902@gmail.com>
References: <51F7D845.1000902@gmail.com>
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To: ath9k-devel@lists.ath9k.org

Hi Stanislav,

Am 30.07.2013 17:14, schrieb Stanislav Komarov:
> Hi guys,
>
> I have an issue when trying to use TP-Link TL-WN821 as AP(Infrastructure
> Mode).
>
> When I plug device to USB port I see in dmesg:
>
> [  223.959068] usb 2-3: new high-speed USB device number 4 using ehci-pci
> [  224.074513] usb 2-3: New USB device found, idVendor=0bda, idProduct=8178
> [  224.074528] usb 2-3: New USB device strings: Mfr=1, Product=2,
> SerialNumber=3
> [  224.074534] usb 2-3: Product: USB WLAN
> [  224.074539] usb 2-3: Manufacturer: 802.11n
> [  224.074549] usb 2-3: SerialNumber: 00e04c000001
> [  224.075802] rtl8192cu: Chip version 0x11
> [  224.119576] rtl8192cu: MAC address: a0:f3:c1:08:ba:a3
> [  224.119585] rtl8192cu: Board Type 0
> [  224.119793] rtlwifi: rx_max_size 15360, rx_urb_num 8, in_ep 1
> [  224.119856] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw.bin
> [  224.120198] ieee80211 phy2: Selected rate control algorithm 'rtl_rc'
> [  224.121622] rtlwifi: wireless switch is on
> [  224.222409] systemd-udevd[2045]: renamed network interface wlan0 to
> wlp0s29f7u3
>
> lsusb says:
> Bus 002 Device 004: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU
> 802.11n WLAN Adapter
>
> lsmod:
>
> ath9k_htc              65772  0
> ath9k_common           13503  1 ath9k_htc
> ath9k_hw              417147  2 ath9k_common,ath9k_htc
> rtl8192cu              67684  0
> rtlwifi                83065  1 rtl8192cu
> rtl8192c_common        46137  1 rtl8192cu
> rfcomm                 68979  10
>
> Checked ls /lib/firmware and yes,I have it by default
>
> ar3k
> ar5523.bin
> ar7010_1_1.fw
> ar7010.fw
> ar9170-1.fw
> ar9170-2.fw
> ar9170.fw
> ar9271.fw
>
>
> Why is it Realtek?????????? I need to use it with hostapd which doesn't
> support it as AP
>
> Thank you very much for your time

well, it is realtek. It's hard to say why :)

TP-Link TL-WN821 has four versions, v4 is realtek:
see this page:
http://wikidevi.com/wiki/TP-LINK_TL-WN821N_v4

if you can, please update this wiki page, provide some images of this 
adapter, and if possible internal too.

Some thing like this will be great:
http://wikidevi.com/wiki/ALFA_Network_AWUS036NHA

-- 
Regards,
Oleksij