Is there a way in say the /proc filesystem to tell if the ethernet media is actually connected or not? I understand how to tell if the device is there or no.
device connected
May 21, 2004
1 Replies
Hi Michael,
Whether or not a cable is connected is information available from the ethernet card's MII PHY. Depending on the card, this info is available to the linux driver, and you can usually see it reported in the kernel logs. I have never seen any ethernet driver implement it under a /proc entry, although it's not impossible. There are also some user-space tools you may find of interest: mii-diag, mii-tool and eth-tool, which talk to the mii via ioctls to the ethernet driver.
regards,
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