mii_check_media(9)

🌸 mii_check_media(9) 🌸

okay bestie, so this is a page from the Kernel API Manual — yes, the kernel, like, the actual beating heart of your OS — and it's all about one lil function called mii_check_media. it's giving network-interface-glow-up-inspector and honestly? we love her. 💅

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✨ NAME ✨

mii_check_media — literally just checks the MII interface to see if the carrier, speed, or duplex changed. that's it. that's the whole vibe. 🦋

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✨ SYNOPSIS ✨

unsigned int mii_check_media (struct mii_if_info *mii , unsigned int ok_to_print , unsigned int init_media );

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✨ ARGUMENTS ✨

• mii — the MII interface itself. the main character of this whole situation 👑
• ok_to_print — if this one's a yes, you're allowed to print the link up/down messages. it's basically the "can I say the thing out loud" permission slip fr fr 🫶
• init_media — if this is a yes, the duplex mode gets saved in mii. like, keeping receipts, but for duplex. 💾

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✨ DESCRIPTION ✨

so here's the tea: this function returns 1 if the duplex mode changed, and 0 if it didn't. simple as. ✨

but wait — if the media type is forced, it always returns 0. no change, no drama, no notes. periodt. 💀

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✨ SEE ALSO ✨

you already know we're linking the whole friend group 💖 — the kernel file lives at ./drivers/net/mii.c, and it's got the whole crew:

• mii_ethtool_gset(9)
• mii_ethtool_get_link_ksettings(9)
• mii_ethtool_sset(9)
• mii_ethtool_set_link_ksettings(9)
• mii_check_gmii_support(9)
• mii_link_ok(9)
• mii_nway_restart(9)
• mii_check_link(9)
• generic_mii_ioctl(9)

all of them, no skips, run the full playlist. 🔥

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and that's the page!! 🎀 sourced from ./drivers/net, dated October 2026, and obviously it's mii_check_media(9) — kthanksbye, go check those media bestie, mwah 💜🧚‍♀️