Re: Querying network devices carrier status

["Amit D. Chaudhary" <amitc@brocade.com>]

Look at the code for mii-tool which comes with net-tools. It would work 
as long as the network device driver in question supports reading MII 
registers using ioctl. Most tend to do this.

Amit

Jonathan Khoo wrote:
> Hi guys,
> 
> How can I probe all the link status of all network devices from the
> userland?
> I know that there is a netif_carrier_ok(..) for the kernel, but how can
> I make use of this from the userland without creating an extra kernel
> module to accept ioctl from the userspace?
> 
> Many thanks for any advices!
> 
> Cheers,
> Jon.
> 
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