Subject: Re: ioctl() to network device
To: Ruibiao Qiu <>
From: Hubert Feyrer <>
List: tech-net
Date: 01/26/2001 21:27:35
On Thu, 25 Jan 2001, Ruibiao Qiu wrote:
> I am trying to control an ENI card on an i386 1.4.2 box using
> ioctl().  I tried to open the device "/dev/en0", but there is no
> such a device file.  Nor there is a /dev/ep0, which is my Ethernet
> device.  So, what file descriptor should I use in the ioctl() to a
> network device such as ENI?  How can I get it?  Thanks.

There are device nodes for network devices. You access network devices via
sockets (IIRC ;).

 - Hubert

Hubert Feyrer <>