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You have to use the streams interface I belive. &nbsp;As to how to do that, I don't know. 

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You have to use the streams interface I belive.  As to how to do that, I don't know.


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<div class="content wysiwyg-content">
Hi, 
 
&nbsp; &nbsp; I am doing a series of experiments about network lantency under &nbsp; 
&nbsp; &nbsp; Linux. I try to write to and read from the ethernet card 
&nbsp; &nbsp; directly. 
 
&nbsp; &nbsp; However, because ethernet device is dynamically detected by 
&nbsp; &nbsp; Linux, that means there is no device named ether0 under /dev. 
&nbsp; &nbsp; (like /dev/ether0 in HP-UX ), I can't use open(&quot;/dev/ether0&quot;,..) 
&nbsp; &nbsp; to create a file handler like what I did under HP-UX. 
&nbsp; &nbsp; 
&nbsp; &nbsp; &nbsp;My problem is that how to access to such a device (eth0) 
&nbsp; &nbsp; &nbsp;under Linux. 
 
&nbsp; &nbsp; &nbsp;Is there anyone who knows how to do? Thanks. 
 
 
 
&nbsp; &nbsp;Shih-wei Li &nbsp; &nbsp; &nbsp; sli@cis.ohio-state.edu 
 
 
&nbsp; &nbsp; ==================================== 
&nbsp; &nbsp; System : Redhat 4.0, kernel 2.0.30 
&nbsp; &nbsp; Ethernet Card: &nbsp;3Com 3c905 Boomerang 100bassTx 
&nbsp; &nbsp; 
&nbsp; &nbsp; 
&nbsp; &nbsp; --- message when booting ----- 
&nbsp; &nbsp; eth0: 3Com 3c905 Boomerang 100baseTx at 0xef00, &nbsp; 
&nbsp; &nbsp; 00:60:97:d4:09:25, IRQ 10 
&nbsp; &nbsp; 8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface. 
&nbsp; &nbsp; Rx Pacing bug exists, disabling bus-master receives. 

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Hi,

    I am doing a series of experiments about network lantency under   
    Linux. I try to write to and read from the ethernet card 
    directly. 

    However, because ethernet device is dynamically detected by 
    Linux, that means there is no device named ether0 under /dev. 
    (like /dev/ether0 in HP-UX ), I can't use open("/dev/ether0",..)
    to create a file handler like what I did under HP-UX.
    
     My problem is that how to access to such a device (eth0)
     under Linux. 

     Is there anyone who knows how to do? Thanks.



   Shih-wei Li       sli@cis.ohio-state.edu


    ====================================
    System : Redhat 4.0, kernel 2.0.30
    Ethernet Card:  3Com 3c905 Boomerang 100bassTx
    
    
    --- message when booting -----
    eth0: 3Com 3c905 Boomerang 100baseTx at 0xef00,  
    00:60:97:d4:09:25, IRQ 10
    8K word-wide RAM 3:5 Rx:Tx split, autoselect/MII interface.
    Rx Pacing bug exists, disabling bus-master receives.


how to write to and read from the ethernet card directly?

The variety of Linux distributions creates myriad issues relating to configuration and operations when computers are networked, not the least of which is the use of various network management applications, some of which are included with specific distributions, while others are standalone applications.