On 29/04/2021 13:43, [email protected] wrote:
is there an easy way to register a callback function or block until a link
status change of an Ethernet device occurs in the libbsd stack?
Searching for it, I found some references for EV_NETDEV in kqueue, but this
seems to be a legacy function which has been removed years ago.
In the console of the Zedboard, for example, I see those events as info
statements, but haven't found an API to hook into that:
info: lo0: link state changed to UP
info: cgem0: link state changed to DOWN
info: cgem0: link state changed to UP
You can look at the dhcpcd code to figure out how this works. I think a
routing socket can be used to get these events.
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