rsi_mac80211_set_antenna(9)

📦 version 7.3.1, in nixpkgs unstable

💅 rsi_mac80211_set_antenna — a Kernel API Manual moment (section 9, bestie)

okay so picture this: you're deep in the kernel, you've got a wireless driver, and you need to tell it which antennas are doing the talking and which ones are doing the listening. that's literally this function. it's rsi_mac80211_set_antenna, and its whole entire job is to configure tx and rx antennas. no cap, that's it, that's the vibe. 🦋

✨ NAME ✨

rsi_mac80211_set_antenna — a function that's used to configure tx and rx antennas. she's giving antenna matchmaker, fr fr. 🎀

🌸 SYNOPSIS 🌸

int rsi_mac80211_set_antenna (struct ieee80211_hw *hw , int radio_idx ,
u32 tx_ant , u32 rx_ant );

look at her. four whole parameters. iconic signature, no notes. 👑

💖 ARGUMENTS 💖

  • hw — pointer to the ieee80211_hw structure. you know, the big one. the main character struct of the whole operation. 🫶
  • radio_idx — the radio index. which radio are we talking to? this one. 🔥
  • tx_ant — bitmap for the tx antenna. tx = transmit, in case your brain is buffering rn. 📡
  • rx_ant — bitmap for the rx antenna. yes bestie, it's also a bitmap, and yes it's the receive one. 💜
ngl these are bitmaps, not just "antenna number one please" — so keep that in mind before you go passing in random integers like it's a drive-thru order. 🙈

⭐ RETURN ⭐

0 on success. negative error code on failure. basically she'll give you a happy little zero or she'll hit you with the negative number and you'll know something went sideways. 😭

🌈 SEE ALSO 🌈

the source of truth herself lives right here in the kernel file:

./drivers/net/wireless/rsi/rsi_91x_mac80211.c

and the whole friend group, in order, because we don't leave anyone out:

like, that's the whole squad. go read them. iykyk. 🧚

and that's the page!! brought to you by the <./drivers/net/wireless/rsi> girlies, dated October 2026, living under the Kernel API Manual umbrella as rsi_mac80211_set_antenna(9). slay, goodbye, go configure some antennas bestie 💅✨🍓

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