Difference between revisions of "USB to WiFi adapter"

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m (→‎ZyDas zd1212 chipset)
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−
How-to use USB to WIFI adapters on your APF boards.
+
How-to use USB to Wi-Fi adapters on your APF boards.
  
 
==Prerequesities==
 
==Prerequesities==
 
{{Note| You have to be sure that [[Wireless Tools]] are installed on your rootfs before going further.}}
 
{{Note| You have to be sure that [[Wireless Tools]] are installed on your rootfs before going further.}}
  
−
==Tested hardware ==
+
* To use USB dongles with [[APF9328]], you'll need an [[APF9328DevFull]] development board, with USB Host configured. See [[ISP1761_Linux_driver|this page]] to know how to do that.
−
=== Ralink RT2571WF ===
+
−
The WiFi chipset RT2571WF can be found under '''the D-Link WiFi key
+
−
[http://www.ldlc.com/fiche/PB00023863.html DWL-G122]'''. All drivers are
+
−
included in Linux kernel 2.6.27. But firmware must be downloaded from
+
−
serialmonkey website at [http://rt2x00.serialmonkey.com/rt73-cvs-daily.tar.gz this address].
+
  
−
To use it with [[APF9328]], you need an [[APF9328DevFull]] development board (with USB Host).
+
==Tested hardware==
 +
{| border="1" cellpadding="5" cellspacing="0" summary="microSDs"
 +
|- style="background:#efefef;"
 +
! rowspan="2" | '''Constructor''' || rowspan="2" | '''Model''' || colspan="4" | '''Status''' || rowspan="2" | '''Chipset'''
 +
|----- style="background:#efefef;"
 +
| '''APF9328''' || '''APF27''' || '''APF51''' || '''APF28'''
 +
|----------------
 +
| rowspan="4" | '''D-Link''' || [http://www.ldlc.com/fiche/PB00023863.html DWL-G122] '''(not rev E1 !)''' || style="background:#00ff00;" | OK || style="background:#00ff00;" | OK || NT || NT  || rowspan="2" | Ralink RT2571WF
 +
|----------------
 +
| WPA-110 || style="background:#00ff00;" | OK || style="background:#00ff00;" | OK || NT || NT
 +
|----------------
 +
| DWA-131 ('''rev. A1''')|| NT || style="background:#00ff00;" | ~OK (3.7 kernel) || NT || style="background:#00ff00;" | ~OK (3.7 kernel) || [[USB_to_WiFi_adapter#RTL8712U|Realtek RTL8192U]]
 +
|----------------
 +
| DWA-140 || NT || NT || NT || style="background:#ff0000;" | KO || Ralink RT2870
 +
|----------------
 +
| '''SMC''' || WUSB-G || NT || style="background:#00ff00;" | OK || NT || NT || ZyDas zd1212
 +
|----------------
 +
| '''Realtek''' || [[USB_to_WiFi_adapter#Chipset_RTL8188CUS|RTL8188CUS]] || NT || NT || NT || style="background:#00ff00;" | OK || RTL8188CUS [[Talk:USB_to_WiFi_adapter#Chipset_RTL8188CUS |see discussion]]
 +
|----------------
 +
| '''Netgear''' ||  N150 WNA1100  || NT || NT || NT || style="background:#00ff00;" | OK || Atheros AR9271 [[Talk:USB_to_WiFi_adapter#Chipset_Atheros_AR9271 |see discussion]]
 +
|----------------
 +
| '''Linksys''' || AE1000 || NT || NT || NT || style="background:#00ff00;" | ~OK (3.7 kernel)|| Ralink RT3572
 +
|----------------
 +
| '''TP-LINK''' || TL-WN823N || NT || style="background:#00ff00;" | ~OK ? (3.7+ kernel) || NT || NT || [[USB_to_WiFi_adapter#RTL8192CU|Realtek 8192CU]]
 +
|}
  
−
==== Kernel configuration ====
+
==Ralink RT2571WF==
 +
The RT2571WF Wi-Fi chipset can be found in the following devices:
 +
* [http://www.ldlc.com/fiche/PB00023863.html D-Link DWL-G122] '''(not rev E1 !)'''
 +
* D-Link WPA-110
  
−
* First, to use a USB dongle, USB Host must be configured. See [[ISP1761_Linux_driver|this page]] to know how to do with the [[APF9328DevFull]].
+
Drivers are included in Linux kernel > 2.6.29, but firmware must be downloaded from serialmonkey website at [http://rt2x00.serialmonkey.com/rt73-cvs-daily.tar.gz this address].
−
* Then, Wireless network must be configured selecting these options in ''make linux-menuconfig'':
+
 
 +
===Kernel configuration===
 +
 
 +
* If not already done, Wireless network must be configured by selecting these options in ''make linux-menuconfig'':
 
<pre class="config">
 
<pre class="config">
 
  [*] Networking support  --->
 
  [*] Networking support  --->
Line 23: Line 48:
 
</pre>
 
</pre>
  
−
* Finally, select the chipset :
+
* then, select the chipset :
 
<pre class="config">
 
<pre class="config">
 
  Device Drivers  --->
 
  Device Drivers  --->
Line 33: Line 58:
 
</pre>
 
</pre>
  
−
==== WiFi configuration ====
+
===Wi-Fi configuration===
  
 
First mount the module:
 
First mount the module:
Line 49: Line 74:
 
</pre>
 
</pre>
  
−
Your WiFi-module driver is ready, you can now connect the dongle and after go further with the [[WiFi|WiFi configuration]].
+
Your Wi-Fi module driver is ready, you can now connect the dongle and after go further with the [[WiFi|Wi-Fi configuration]].
  
−
=== ZyDas zd1212 chipset ===  
+
==Ralink RT2870==
 +
* Activate the driver in Linux configuration (if not already done):
 +
<pre class=host>
 +
$ make linux-menuconfig
 +
</pre>
 +
* Load driver
 +
<pre class=apf>
 +
# modprobe rt2800_usb
 +
</pre>
 +
* Be sure to have rt2870.bin in /lib/firmware
 +
 
 +
==ZyDas zd1212 chipset==  
 
* Tested with SMC WUSB-G (which is in [http://www.linuxwireless.org/en/users/Drivers/zd1211rw/devices the compatibility list]).
 
* Tested with SMC WUSB-G (which is in [http://www.linuxwireless.org/en/users/Drivers/zd1211rw/devices the compatibility list]).
 
**[http://www.ldlc.com/fiche/PB00067971.html Go here to buy this device in France (LDLC)]
 
**[http://www.ldlc.com/fiche/PB00067971.html Go here to buy this device in France (LDLC)]
Line 58: Line 94:
 
====Configure Linux====
 
====Configure Linux====
 
<pre class="host">
 
<pre class="host">
−
  $ make linux26-menuconfig
+
  $ make linux-menuconfig
 
</pre>
 
</pre>
  
Line 74: Line 110:
 
             [*]  ZyDAS ZD1211 debugging
 
             [*]  ZyDAS ZD1211 debugging
 
</pre>
 
</pre>
 +
 +
<pre class="host">
 +
$ make linux && make
 +
</pre>
 +
 +
Reinstall your system.
  
 
====Get firmware====
 
====Get firmware====
Line 109: Line 151:
 
  firmware: requesting zd1211/zd1211b_ub
 
  firmware: requesting zd1211/zd1211b_ub
 
  firmware: requesting zd1211/zd1211b_uphr
 
  firmware: requesting zd1211/zd1211b_uphr
 +
</pre>
 +
 +
==Realtek rtl8187==
 +
[http://www.linuxwireless.org/en/users/Drivers/rtl8187 Compatibility list] <br>
 +
Tested devices:
 +
* Netgear WG111v3
 +
 +
===Configure Linux===
 +
<pre class="host">
 +
$ make linux-menuconfig
 +
</pre>
 +
 +
<pre class="config">
 +
Device Drivers  --->
 +
    [*] Network device support  --->
 +
        Wireless LAN  --->
 +
            [*] Wireless LAN (IEEE 802.11)
 +
            ...
 +
            <M>  Realtek 8187 and 8187B USB support
 +
</pre>
 +
 +
<pre class="host">
 +
$ make linux && make
 +
</pre>
 +
 +
===Launch driver===
 +
<pre class=apf>
 +
# modprobe rtl8187
 +
cfg80211: Calling CRDA to update world regulatory domain
 +
ieee80211 phy0: hwaddr 00:22:3f:df:2c:04, RTL8187BvE V0 + rtl8225z2, rfkill mask 2
 +
rtl8187: wireless switch is on
 +
usbcore: registered new interface driver rtl8187
 +
 +
# ifconfig wlan0 up
 +
ADDRCONF(NETDEV_UP): wlan0: link is not ready
 +
</pre>
 +
 +
== Chipset RTL8188CUS ==
 +
 +
Thanks to Sly for this contribution.
 +
 +
Here are the details for the RTL8188CUS driver for the APF28.
 +
 +
===Build procedure===
 +
Build the driver for chip RTL8188CUS from source rtl8188C_8192C_usb_linux_v3.4.3_4369.20120622 .
 +
You can get the driver here (chose RTL8188CUS) :
 +
[http://www.realtek.com.tw/downloads/downloadsView.aspx?Langid=1&PNid=21&PFid=48&Level=5&Conn=4&DownTypeID=3&GetDown=false&Downloads=true]
 +
 +
Add those option in the makefile :
 +
<pre class="host">
 +
- change line 39 :
 +
CONFIG_PLATFORM_I386_PC = n
 +
- add line 40 :
 +
CONFIG_PLATFORM_ARM_ARMADEUS = y
 +
 +
- Near line 261 add:
 +
ifeq ($(CONFIG_PLATFORM_ARM_ARMADEUS), y)
 +
EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN -DCONFIG_WEXT_PRIV
 +
ARCH := arm
 +
CROSS_COMPILE := /path-to-your/armadeus/buildroot/output/host/usr/bin/arm-linux-
 +
KVER  := 2.6.35.3
 +
KSRC ?= /path-to-your/armadeus/buildroot/output/build/linux-2.6.35.3
 +
endif
 +
</pre>
 +
 +
finally copy the driver to the target directory :
 +
<pre class="host">
 +
cp 8192cu.ko /path-to-your/armadeus/buildroot/output/target/lib/modules/2.6.35.3\+/kernel/drivers/net/wireless/
 +
</pre>
 +
 +
Rebuild your armadeus roots and reprogram your board:
 +
<pre class="host">
 +
cd /path-to-your-armadeus-directory
 +
make
 +
cp build root/output/images/* /tftpboot
 +
</pre>
 +
 +
===Launch driver===
 +
<pre class=apf>
 +
# insmod /lib/modules/2.6.35.3\+/kernel/drivers/net/wireless/8192cu.ko
 +
rtw driver version=v3.4.3_4369.20120622
 +
Build at: Oct 15 2012 14:47:14
 +
register rtw_netdev_ops to netdev_ops
 +
CHIP TYPE: RTL8188C_8192C
 +
...
 +
 +
# ifconfig wlan0 up
 +
+871x_drv - drv_open, bup=0
 +
===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
 +
FirmwareDownload92C accquire FW from embedded image
 +
...
 +
MAC Address = 78:44:76:95:96:76
 +
-871x_drv - drv_open, bup=1
 +
ADDRCONF(NETDEV_UP): wlan0: link is not ready
 +
</pre>
 +
 +
==RTL8712U==
 +
* [http://wiki.debian.org/rtl819x#r8712u Compatibility List]
 +
* Tested devices:
 +
** D-LINK DWA-131
 +
 +
===Configure Linux===
 +
* If not already done:
 +
 +
<pre class="host">
 +
$ make linux-menuconfig
 +
</pre>
 +
 +
<pre class="config">
 +
    Device Drivers  --->
 +
        [*] Staging drivers  --->
 +
            <M>  RealTek RTL8712U (RTL8192SU) Wireless LAN NIC driver
 +
</pre>
 +
* rebuild and reflash Linux image
 +
 +
===Configure Buildroot===
 +
* Only on recent Buildroot, otherwise get the firmware manually from linux-firmware git repository.
 +
 +
<pre class="host">
 +
$ make menuconfig
 +
</pre>
 +
 +
<pre class="config">
 +
Package Selection for the target  --->
 +
    Hardware handling  --->
 +
        Misc devices firmwares  --->
 +
            [*] linux-firmware
 +
                WiFi firmwares  --->
 +
                    ...
 +
                    [*] Realtek 8712
 +
</pre>
 +
 +
* rebuild and reflash rootfs image
 +
 +
<pre class="apf">
 +
# modprobe r8712u
 +
[  22.563440] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
 +
[  22.583039] r8712u: Staging version
 +
[  22.586760] r8712u: register rtl8712_netdev_ops to netdev_ops
 +
[  22.603628] r8712u: USB_SPEED_HIGH with 4 endpoints
 +
[  22.611685] r8712u: Boot from EFUSE: Autoload OK
 +
[  23.714020] r8712u: CustomerID = 0x0000
 +
[  23.717967] r8712u: MAC Address from efuse = cc:b2:55:c6:67:1d
 +
[  23.725866] r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
 +
[  23.739712] usbcore: registered new interface driver r8712u
 +
 +
# ifconfig wlan0 up
 +
[  62.320936] r8712u: 1 RCR=0x153f00e
 +
[  62.325542] r8712u: 2 RCR=0x553f00e
 +
[  62.440908] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
 +
 +
# iwlist wlan0 scan
 +
wlan0    Scan completed :
 +
          Cell 01 - Address: 00:17:33:1C:91:E6
 +
                    ESSID:"SFR WiFi Public"
 +
                    Protocol:IEEE 802.11bg
 +
                    Mode:Master
 +
                    Frequency:2.462 GHz (Channel 11)
 +
                    Encryption key:off
 +
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
 +
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
 +
                              12 Mb/s; 48 Mb/s
 +
                    Signal level=82/100 
 +
.....
 +
</pre>
 +
 +
==RTL8192CU==
 +
* [http://wiki.debian.org/rtl819x#r8192cu Compatibility List]
 +
* Tested devices:
 +
** TP-Link TL-WN823N
 +
 +
===Configure Linux===
 +
* If not already done:
 +
 +
<pre class="host">
 +
$ make linux-menuconfig
 +
</pre>
 +
 +
<pre class="config">
 +
    Device Drivers  --->
 +
        [*] Network device support  --->
 +
            [*]  Wireless LAN  --->
 +
            <M>  Realtek RTL8192CU/RTL8188CU USB Wireless Network Adapter
 +
</pre>
 +
* rebuild and reflash Linux image
 +
 +
===Configure Buildroot===
 +
* Only on recent Buildroot, otherwise get the firmware manually from linux-firmware git repository.
 +
 +
<pre class="host">
 +
$ make menuconfig
 +
</pre>
 +
 +
<pre class="config">
 +
Package Selection for the target  --->
 +
    Hardware handling  --->
 +
        Misc devices firmwares  --->
 +
            [*] linux-firmware
 +
                WiFi firmwares  --->
 +
                    ...
 +
                    [*] Realtek 8192
 +
</pre>
 +
 +
* rebuild and reflash rootfs image
 +
 +
* then plug the USB dongle and load the corresponding driver:
 +
<pre class="apf">
 +
# modprobe rtl8192cu
 +
[  180.151881] cfg80211: Calling CRDA to update world regulatory domain
 +
[  180.462064] rtl8192cu: Chip version 0x11
 +
[  180.642278] rtl8192cu: MAC address: 64:70:02:17:84:9a
 +
[  180.647469] rtl8192cu: Board Type 0
 +
[  180.653125] rtlwifi: rx_max_size 15360, rx_urb_num 8, in_ep 1
 +
[  180.659369] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw.bin
 +
[  180.673783] usbcore: registered new interface driver rtl8192cu
 +
[  180.833248] rtlwifi: wireless switch is on
 +
 +
# ifconfig wlan0 up
 +
[  257.824955] rtl8192cu: MAC auto ON okay!
 +
[  257.896107] rtl8192cu: Tx queue select: 0x05
 +
[  258.348956] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
 +
 +
# iw dev wlan0 scan
 +
BSS f4:ca:e5:c4:bc:35(on wlan0)
 +
        TSF: 2389267669750 usec (27d, 15:41:07)
 +
        freq: 2417
 +
        beacon interval: 96 TUs
 +
        capability: ESS ShortSlotTime (0x0401)
 +
        signal: -35.00 dBm
 +
        last seen: 650 ms ago
 +
        Information elements from Probe Response frame:
 +
        SSID: FreeWifi
 +
        Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0
 +
        DS Parameter set: channel 2
 +
        ERP: Barker_Preamble_Mode
 +
        Extended supported rates: 24.0 36.0 48.0 54.0
 +
.....
 
</pre>
 
</pre>
  
 
==To go further==
 
==To go further==
−
* [[WiFi| Configure your WiFi network interface]]
+
* [[WiFi| Configure your Wi-Fi network interface]]
 
* [[Links | Browse the net (in text mode) from your terminal]]
 
* [[Links | Browse the net (in text mode) from your terminal]]
  
 
==Links==
 
==Links==
−
* [http://www.linuxwireless.org/en/users/Drivers/zd1211rw zd1211 driver on linuxwireless.org]
+
* https://wireless.wiki.kernel.org/
 +
* [https://wireless.wiki.kernel.org/en/users/drivers/zd1211rw zd1211 driver on linuxwireless.org]
  
 
[[Category:Network]]
 
[[Category:Network]]
 
[[Category:WiFi]]
 
[[Category:WiFi]]
 
[[Category:USB]]
 
[[Category:USB]]

Latest revision as of 18:05, 26 February 2018

How-to use USB to Wi-Fi adapters on your APF boards.

Prerequesities

Note Note: You have to be sure that Wireless Tools are installed on your rootfs before going further.


Tested hardware

Constructor Model Status Chipset
APF9328 APF27 APF51 APF28
D-Link DWL-G122 (not rev E1 !) OK OK NT NT Ralink RT2571WF
WPA-110 OK OK NT NT
DWA-131 (rev. A1) NT ~OK (3.7 kernel) NT ~OK (3.7 kernel) Realtek RTL8192U
DWA-140 NT NT NT KO Ralink RT2870
SMC WUSB-G NT OK NT NT ZyDas zd1212
Realtek RTL8188CUS NT NT NT OK RTL8188CUS see discussion
Netgear N150 WNA1100 NT NT NT OK Atheros AR9271 see discussion
Linksys AE1000 NT NT NT ~OK (3.7 kernel) Ralink RT3572
TP-LINK TL-WN823N NT ~OK ? (3.7+ kernel) NT NT Realtek 8192CU

Ralink RT2571WF

The RT2571WF Wi-Fi chipset can be found in the following devices:

Drivers are included in Linux kernel > 2.6.29, but firmware must be downloaded from serialmonkey website at this address.

Kernel configuration

  • If not already done, Wireless network must be configured by selecting these options in make linux-menuconfig:
 [*] Networking support  --->
    Wireless  --->
        <*> Generic IEEE 802.11 Networking Stack (mac80211)
  • then, select the chipset :
 Device Drivers  --->
    [*] Network device support  --->
        Wireless LAN  --->
            [*] Wireless LAN (IEEE 802.11)
            <M> Ralink driver support
            <M> Ralink rt2501/rt73 (USB) support

Wi-Fi configuration

First mount the module: 

# modprobe rt73usb

Then copy the firmware named rt73.bin (found in Module directory of rt73-cvs archive) in apf /lib/firmware directory. If /lib/firmware doesn't exist create it. 

 mkdir -p /lib/firmware
 tftp -g -r rt73.bin <yourIP>
 mv rt73.bin /lib/firmware

Your Wi-Fi module driver is ready, you can now connect the dongle and after go further with the Wi-Fi configuration.

Ralink RT2870

  • Activate the driver in Linux configuration (if not already done):
$ make linux-menuconfig
  • Load driver
# modprobe rt2800_usb
  • Be sure to have rt2870.bin in /lib/firmware

ZyDas zd1212 chipset

Configure Linux

 $ make linux-menuconfig

 [*] Networking support  --->
    Wireless  --->
        <*> Generic IEEE 802.11 Networking Stack (mac80211)

 Device Drivers  --->
     [*] Network device support  --->
         Wireless LAN  --->
             [*] Wireless LAN (IEEE 802.11)
             ...
             <M> ZyDAS ZD1211/ZD1211B USB-wireless support
             [*]   ZyDAS ZD1211 debugging

 $ make linux && make

Reinstall your system.

Get firmware

Install firmware on your APF

 # mkdir -p /lib/firmware/
 # cd /lib/firmware/
 # tftp -g -r zd1211-firmware-1.4.tar.bz2 192.168.0.17
 # bunzip2 zd1211-firmware-1.4.tar.bz2
 # tar xf zd1211-firmware-1.4.tar
 # mv zd1211-firmware zd1211

Connect your USB adapter

usb 1-1: new high speed USB device using mxc-ehci and address 2
usb 1-1: configuration #1 chosen from 1 choice
usb 1-1: New USB device found, idVendor=083a, idProduct=4505
usb 1-1: New USB device strings: Mfr=16, Product=32, SerialNumber=0
usb 1-1: Product: USB2.0 WLAN
usb 1-1: Manufacturer: SMC

Launch driver

 # modprobe zd1211rw
 usb 1-1: reset high speed USB device using mxc-ehci and address 2
 zd1211rw 1-1:1.0: phy0
 usbcore: registered new interface driver zd1211rw
 
 # ifconfig wlan0 up
 firmware: requesting zd1211/zd1211b_ub
 firmware: requesting zd1211/zd1211b_uphr

Realtek rtl8187

Compatibility list
Tested devices:

  • Netgear WG111v3

Configure Linux

 $ make linux-menuconfig

 Device Drivers  --->
     [*] Network device support  --->
         Wireless LAN  --->
             [*] Wireless LAN (IEEE 802.11)
             ...
             <M>   Realtek 8187 and 8187B USB support

 $ make linux && make

Launch driver

# modprobe rtl8187
cfg80211: Calling CRDA to update world regulatory domain
ieee80211 phy0: hwaddr 00:22:3f:df:2c:04, RTL8187BvE V0 + rtl8225z2, rfkill mask 2
rtl8187: wireless switch is on
usbcore: registered new interface driver rtl8187

# ifconfig wlan0 up
ADDRCONF(NETDEV_UP): wlan0: link is not ready

Chipset RTL8188CUS

Thanks to Sly for this contribution.

Here are the details for the RTL8188CUS driver for the APF28.

Build procedure

Build the driver for chip RTL8188CUS from source rtl8188C_8192C_usb_linux_v3.4.3_4369.20120622 . You can get the driver here (chose RTL8188CUS) : [1]

Add those option in the makefile : 

- change line 39 :
CONFIG_PLATFORM_I386_PC = n
- add line 40 :
CONFIG_PLATFORM_ARM_ARMADEUS = y

- Near line 261 add:
ifeq ($(CONFIG_PLATFORM_ARM_ARMADEUS), y)
EXTRA_CFLAGS += -DCONFIG_LITTLE_ENDIAN -DCONFIG_WEXT_PRIV
ARCH := arm
CROSS_COMPILE := /path-to-your/armadeus/buildroot/output/host/usr/bin/arm-linux-
KVER  := 2.6.35.3
KSRC ?= /path-to-your/armadeus/buildroot/output/build/linux-2.6.35.3
endif

finally copy the driver to the target directory : 

cp 8192cu.ko /path-to-your/armadeus/buildroot/output/target/lib/modules/2.6.35.3\+/kernel/drivers/net/wireless/

Rebuild your armadeus roots and reprogram your board: 

cd /path-to-your-armadeus-directory
make
cp build root/output/images/* /tftpboot

Launch driver

# insmod /lib/modules/2.6.35.3\+/kernel/drivers/net/wireless/8192cu.ko
rtw driver version=v3.4.3_4369.20120622 
Build at: Oct 15 2012 14:47:14
register rtw_netdev_ops to netdev_ops
CHIP TYPE: RTL8188C_8192C
...

# ifconfig wlan0 up
+871x_drv - drv_open, bup=0
 ===> FirmwareDownload91C() fw:Rtl819XFwImageArray_TSMC
FirmwareDownload92C accquire FW from embedded image
...
MAC Address = 78:44:76:95:96:76
-871x_drv - drv_open, bup=1
ADDRCONF(NETDEV_UP): wlan0: link is not ready

RTL8712U

Configure Linux

  • If not already done:
$ make linux-menuconfig

    Device Drivers  --->
        [*] Staging drivers  --->
            <M>   RealTek RTL8712U (RTL8192SU) Wireless LAN NIC driver
  • rebuild and reflash Linux image

Configure Buildroot

  • Only on recent Buildroot, otherwise get the firmware manually from linux-firmware git repository.
$ make menuconfig

Package Selection for the target  --->
    Hardware handling  --->
        Misc devices firmwares  ---> 
            [*] linux-firmware
                WiFi firmwares  --->
                    ...
                    [*] Realtek 8712
  • rebuild and reflash rootfs image
# modprobe r8712u
[   22.563440] r8712u: module is from the staging directory, the quality is unknown, you have been warned.
[   22.583039] r8712u: Staging version
[   22.586760] r8712u: register rtl8712_netdev_ops to netdev_ops
[   22.603628] r8712u: USB_SPEED_HIGH with 4 endpoints
[   22.611685] r8712u: Boot from EFUSE: Autoload OK
[   23.714020] r8712u: CustomerID = 0x0000
[   23.717967] r8712u: MAC Address from efuse = cc:b2:55:c6:67:1d
[   23.725866] r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
[   23.739712] usbcore: registered new interface driver r8712u

# ifconfig wlan0 up
[   62.320936] r8712u: 1 RCR=0x153f00e
[   62.325542] r8712u: 2 RCR=0x553f00e
[   62.440908] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

# iwlist wlan0 scan
wlan0     Scan completed :
          Cell 01 - Address: 00:17:33:1C:91:E6
                    ESSID:"SFR WiFi Public"
                    Protocol:IEEE 802.11bg
                    Mode:Master
                    Frequency:2.462 GHz (Channel 11)
                    Encryption key:off
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
                              12 Mb/s; 48 Mb/s
                    Signal level=82/100  
.....

RTL8192CU

Configure Linux

  • If not already done:
$ make linux-menuconfig

    Device Drivers  --->
        [*] Network device support  --->
            [*]   Wireless LAN  --->
            <M>   Realtek RTL8192CU/RTL8188CU USB Wireless Network Adapter
  • rebuild and reflash Linux image

Configure Buildroot

  • Only on recent Buildroot, otherwise get the firmware manually from linux-firmware git repository.
$ make menuconfig

Package Selection for the target  --->
    Hardware handling  --->
        Misc devices firmwares  ---> 
            [*] linux-firmware
                WiFi firmwares  --->
                    ...
                    [*] Realtek 8192
  • rebuild and reflash rootfs image
  • then plug the USB dongle and load the corresponding driver:
# modprobe rtl8192cu
[  180.151881] cfg80211: Calling CRDA to update world regulatory domain
[  180.462064] rtl8192cu: Chip version 0x11
[  180.642278] rtl8192cu: MAC address: 64:70:02:17:84:9a
[  180.647469] rtl8192cu: Board Type 0
[  180.653125] rtlwifi: rx_max_size 15360, rx_urb_num 8, in_ep 1
[  180.659369] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw.bin
[  180.673783] usbcore: registered new interface driver rtl8192cu
[  180.833248] rtlwifi: wireless switch is on

# ifconfig wlan0 up
[  257.824955] rtl8192cu: MAC auto ON okay!
[  257.896107] rtl8192cu: Tx queue select: 0x05
[  258.348956] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready

# iw dev wlan0 scan
BSS f4:ca:e5:c4:bc:35(on wlan0)
        TSF: 2389267669750 usec (27d, 15:41:07)
        freq: 2417
        beacon interval: 96 TUs
        capability: ESS ShortSlotTime (0x0401)
        signal: -35.00 dBm
        last seen: 650 ms ago
        Information elements from Probe Response frame:
        SSID: FreeWifi
        Supported rates: 1.0* 2.0* 5.5* 11.0* 6.0 9.0 12.0 18.0 
        DS Parameter set: channel 2
        ERP: Barker_Preamble_Mode
        Extended supported rates: 24.0 36.0 48.0 54.0 
.....

To go further

Links

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