On Tue, Jul 11, 2000 at 10:39:13AM -0400, Richard B. Johnson wrote:
>
>
> Does anybody know, during early startup of the kernel, what I
> can check to see if an Ethernet device "eth0" exists. This
> is before the network is started and before any possible
> network-device module would be installed. The idea is to
> install a network device module IFF the correct one is not
> already linked into the kernel. This is an embedded system
> so It doesn't use the current 'try to install if you get
> an ifconfig error' mechanism. It doesn't use 'ifconfig'.
> It uses socket ioctl(SIOCSxxxx) calls.
Just do a SIOCGIFFLAGS. If the device doesn't exist you'll get a ENODEV,
otherwise 0.
-Andi
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