Re: [lwip-users] how lwip know internet cable is unplug

[ake . forslund]

Hi!

I think that is something you define
in your ethernet driver. My approach is to send a signal to a separate
task to handle the cable-plug/unplug events. In the task I currently disable
dhcp (if active) on cable-unplug signal and reenable it on cable-connect.
it might be good to set an auto-ip when unplugged as well, but I'm not
sure. Maybe it should be handled with the netif_set_up/down-functions instead,
I'm still experimenting...

/Åke

-----------------------------
Åke Forslund
0433-273296
NIBE AB
Box 14
S-285 21  Markaryd
Tel +46-(0)433-273296

From:	vincent cui <address@hidden>
To:	Mailing list for lwIP users <address@hidden>
Date:	2011-09-02 07:27
Subject:	[lwip-users] how lwip know internet cable is unplug
Sent by:	address@hidden

---

Hi;

When unplug internet cable, how lwip deal it ? I want to show message to
user in LCD to notice user !

锘?Vincent Cui
Sr.Firmware Engineer
Mobile: +8613482482211
Tel: +86 21 34612525x6104
Fax: +86 21 34619770
E-Mail: address@hidden
Shanghai EnLogic Electric Technology Co., Ltd.
Address: 1104-1106, Building A, No.391, Guiping Road, Xuhui District, Shanghai,
200233
http://www.enlogic.com

-----Original Message-----
From: address@hidden [mailto:address@hidden]
On Behalf Of Kieran Mansley
Sent: 2011年9月2日 3:22
To: Mailing list for lwIP users
Subject: Re: [lwip-users] FreeRTOS / lwip multiple connections


On 31 Aug 2011, at 01:18, vincent cui wrote:

> K:
> You mean I need make accept socket to be non-blocking , right ?

No, I'm not sure why you need any of your sockets to be non-blocking.

Kieran

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