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Anchor10914721091472 NetIF_LinkStateGet() Anchor12647021264702Get network interface’s last known physical link state. Anchor10914741091474

Files

Anchor10914751091475net_if.h/net_if.c Anchor10914761091476

Prototype

NET_ERR *perr);
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          CPU_BOOLEAN NetIF_LinkStateGet(NET_IF_NBR  if_nbr,
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                                         NET_ERR    *p_err);

Arguments

if_nbr

Network interface number to get last known physical link state.

Anchor10914811091481 perr Anchor12546411254641p_err

Pointer to variable that will receive the return error code from this function:

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NET_IF_ERR_NONE

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NET_IF_ERR_INVALID_IF

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NET_

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ERR_

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FAULT_LOCK

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_ACQUIRE

Returned Value

Anchor13248281324828NET_IF_LINK_UP Anchor12712271271227

if no errors and network interface’s last known physical link state was ‘UP’;

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1271228NET_IF_LINK_DOWN Anchor12546551254655

otherwise.

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Required Configuration

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None. Anchor10914911091491

Notes / Warnings

Anchor10914921091492Use NetIF_IO_Ctrl() with option NET_IF_IO_CTRL_LINK_STATE_GET to get a network interface’s current physical link state.

See section Network Interface Link State for more information on how to get the Link State.