Difference between revisions of "USB to Ethernet adapter"

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(New page: How-to use USB to Ethernet adapters ==Prerequesities== ==Tested hardware == === SMSC LAN9500 === The SMSC LAN9500 is a Hi-Speed USB 2.0 to 10/100 Ethernet Controller. The datasheet can b...)
 
 
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[[Category:Network]]
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[[Category:USB]]
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 +
 
How-to use USB to Ethernet adapters
 
How-to use USB to Ethernet adapters
  
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==Tested hardware ==
 
==Tested hardware ==
 +
 +
=== LAN JP208 (ASIX AX88772C) ===
 +
 +
LAN JP208 is a ''noname'' USB2 to Ethernet controller adapter.
 +
 +
[[File:lan_jp208.jpg]]
 +
 +
On host x86 computer, this converter is identified as an ASIX 8877 chip :
 +
<pre class=host>
 +
[  +0,112941] usb 1-3.1.4: New USB device found, idVendor=0b95, idProduct=772b
 +
[  +0,000003] usb 1-3.1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
 +
[  +0,000002] usb 1-3.1.4: Product: AX88772C
 +
[  +0,000002] usb 1-3.1.4: Manufacturer: ASIX Elec. Corp.
 +
[  +0,000001] usb 1-3.1.4: SerialNumber: 00000A
 +
</pre>
 +
 +
==== Kernel configuration ====
 +
The driver is included in linux menuconfig.
 +
 +
<pre class=host>
 +
$ make linux-menuconfig
 +
</pre>
 +
 +
<pre class="config">
 +
Device Drivers  --->
 +
    [*] Network device support  --->
 +
        USB Network Adapters  --->
 +
            [...]
 +
            <*>  Multi-purpose USB Networking Framework
 +
            <*>    ASIX AX88xxx Based USB 2.0 Ethernet Adapters
 +
            [...]
 +
 +
</pre>
 +
==== Usage ====
 +
 +
Usage are the same as SMSC described below, except that:
 +
* interface is named ethx (If you already mount the base ethernet, this adapter will be named eth1).
 +
* The Linux configuration given here avoid modprobe.
 +
 
=== SMSC LAN9500 ===
 
=== SMSC LAN9500 ===
 
The SMSC LAN9500 is a Hi-Speed USB 2.0 to 10/100 Ethernet Controller. The datasheet can be found here: http://www.smsc.com/media/Downloads_Public/Data_Sheets/9500.pdf. An external EEPROM is used to store the LAN9500 configuration.
 
The SMSC LAN9500 is a Hi-Speed USB 2.0 to 10/100 Ethernet Controller. The datasheet can be found here: http://www.smsc.com/media/Downloads_Public/Data_Sheets/9500.pdf. An external EEPROM is used to store the LAN9500 configuration.
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==== Kernel configuration ====
 
==== Kernel configuration ====
−
 
+
<pre class=host>
−
* Then, Wireless network must be configured selecting these options in ''make linux26-menuconfig'':
+
$ make linux-menuconfig
 +
</pre>
  
 
<pre class="config">
 
<pre class="config">
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     [*] Network device support  --->
 
     [*] Network device support  --->
 
         USB Network Adapters  --->
 
         USB Network Adapters  --->
 +
            [...]
 
             <M> Multi-purpose USB Networking Framework
 
             <M> Multi-purpose USB Networking Framework
 +
            [...]
 
             <M> CDC Ethernet support
 
             <M> CDC Ethernet support
 +
            [...]
 
             <M> SMSC LAN95XX based USB 2.0 10/100 ethernet devices
 
             <M> SMSC LAN95XX based USB 2.0 10/100 ethernet devices
 
</pre>
 
</pre>
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==== Additional tools ====
 
==== Additional tools ====
 
In order to read/write the configuration eeprom of the LAN9500, Ethtool has to be used.
 
In order to read/write the configuration eeprom of the LAN9500, Ethtool has to be used.
−
''make menuconfig''
+
<pre class=host>
 +
$ make menuconfig
 +
</pre>
 +
 
 
<pre class="config">
 
<pre class="config">
−
Package Selection for the target --->
+
Target packages --->
−
     [*] Networking  --->
+
     Networking applications --->
 
             [*] ethtool
 
             [*] ethtool
 +
            [*]  enable pretty printing
 +
           
 
</pre>
 
</pre>
  
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<pre class=apf>
 
<pre class=apf>
−
  ethtool -e usb0   (eeprom read)
+
  ethtool -e usb0   # (eeprom read)
−
  ethtool -E usb0   (eeprom write)
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  ethtool -E usb0 magic 0x9500 offset xxx value xxx  # (eeprom write value at offset)
 
</pre>
 
</pre>
−
Further informcations concerning the EEPROM containt can be found on the SMSC web site.
+
Additional informations concerning the EEPROM containt can be found on the SMSC web site.
−
 
+
−
 
+
−
[[Category:Network]]
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−
[[Category:WiFi]]
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−
[[Category:USB]]
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Latest revision as of 09:49, 30 April 2020


How-to use USB to Ethernet adapters

Prerequesities

Tested hardware

LAN JP208 (ASIX AX88772C)

LAN JP208 is a noname USB2 to Ethernet controller adapter.

Lan jp208.jpg

On host x86 computer, this converter is identified as an ASIX 8877 chip : 

[  +0,112941] usb 1-3.1.4: New USB device found, idVendor=0b95, idProduct=772b
[  +0,000003] usb 1-3.1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[  +0,000002] usb 1-3.1.4: Product: AX88772C
[  +0,000002] usb 1-3.1.4: Manufacturer: ASIX Elec. Corp.
[  +0,000001] usb 1-3.1.4: SerialNumber: 00000A

Kernel configuration

The driver is included in linux menuconfig. 

$ make linux-menuconfig

 Device Drivers  --->
    [*] Network device support  --->
        USB Network Adapters  --->
            [...]
            <*>   Multi-purpose USB Networking Framework
            <*>     ASIX AX88xxx Based USB 2.0 Ethernet Adapters
            [...]

Usage

Usage are the same as SMSC described below, except that:

  • interface is named ethx (If you already mount the base ethernet, this adapter will be named eth1).
  • The Linux configuration given here avoid modprobe.

SMSC LAN9500

The SMSC LAN9500 is a Hi-Speed USB 2.0 to 10/100 Ethernet Controller. The datasheet can be found here: http://www.smsc.com/media/Downloads_Public/Data_Sheets/9500.pdf. An external EEPROM is used to store the LAN9500 configuration.


Kernel configuration

$ make linux-menuconfig

 Device Drivers  --->
    [*] Network device support  --->
        USB Network Adapters  --->
            [...]
            <M> Multi-purpose USB Networking Framework
            [...]
            <M> CDC Ethernet support
            [...]
            <M> SMSC LAN95XX based USB 2.0 10/100 ethernet devices

Additional tools

In order to read/write the configuration eeprom of the LAN9500, Ethtool has to be used. 

$ make menuconfig

Target packages  --->
    Networking applications  --->
            [*] ethtool
            [*]   enable pretty printing

Usage

First mount the module: 

# modprobe smsc95xx

then start the new ethernet port 

# ifconfig usb0 192.168.10.208 up

If the message "No EEPROM present" is displayed, this indicates that no configuration file has been detected in the EEPROM. The LAN9500 will start in a default mode and the MAC address will be randomly generated by Linux. The EEPROM can be read/write by using ethtool once the module loaded 

 ethtool -e usb0   # (eeprom read)
 ethtool -E usb0 magic 0x9500 offset xxx value xxx  # (eeprom write value at offset)

Additional informations concerning the EEPROM containt can be found on the SMSC web site.

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