ieee80211_uhr_dbe_bw_mhz(9)

💅 ieee80211_uhr_dbe_bw_mhz (section 9, kernel API manual, bestie)

okay so like, hi, welcome to the group chat 💖 today we're looking at ieee80211_uhr_dbe_bw_mhz from the kernel API manual — yes it's a section 9 page, yes it's a whole vibe, and yes I'm gonna explain it to you like you're my bestie who just got her first kernel tree. no gatekeeping here 🫶

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✨ NAME ✨

ieee80211_uhr_dbe_bw_mhz — okay so this function is literally the "what bandwidth am I working with, in MHz?" girlie 💅 you hand her a UHR DBE bandwidth and she hands you back the actual number in megahertz. it's giving translator icon, periodt.

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🌸 SYNOPSIS 🌸

int ieee80211_uhr_dbe_bw_mhz (enum ieee80211_uhr_dbe_oper_bw bw );

so she returns an int, and she takes exactly one thing: an enum ieee80211_uhr_dbe_oper_bw named bw. that's it. that's the whole function signature. no cap. ✨

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🎀 ARGUMENTS 🎀

• bw — the UHR DBE bandwidth 🦋 like, this is the value you're asking about. you give her the bandwidth, she tells you what it is in MHz. simple as that, iykyk.

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👑 RETURN 👑

she returns the bandwidth in MHz 💚 — and if the value is invalid? she returns -1. that's the "bestie this is not a real thing" signal 🚩 so like, check for that, fr fr. don't be out here treating a -1 like a real bandwidth unless you want chaos 😭

heads up bestie: -1 is what you get for invalid values. that's the entire failure mode listed here, so if you see -1, the value you handed her wasn't valid. periodt.

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🦋 SEE ALSO 🦋

literally the whole friend group, go say hi 💜

• Kernel file ./include/linux/ieee80211-uhr.h — struct ieee80211_uhr_npca_info(9)
• struct ieee80211_uhr_dps_info(9)
• enum ieee80211_uhr_dbe_oper_bw(9)
• struct ieee80211_uhr_dbe_info(9)
• struct ieee80211_uhr_p_edca_info(9)
• enum ieee80211_uhr_dbe_max_supported_bw(9)
• ieee80211_uhr_capa_get_om_pu_to_us(9)

like, if this page was your main character, those are the supporting cast 🌈 and honestly the enum ieee80211_uhr_dbe_oper_bw(9) one is right there since that's literally the type of our argument. obsessed. 🔥

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⭐ the cute sign-off ⭐

this lil page lives over in ./include/linux 🎀 and it's dated October 2026 — yes, future girlie energy 🌸 the manual page is ieee80211_uhr_dbe_bw_mhz(9) and that's the whole thing, slay, bye bestie 💖🦋✨