igc_put_hw_semaphore(9)

💖 igc_put_hw_semaphore — it's the Kernel API Manual bestie, and today we're releasing a semaphore 🎀

✨ NAME ✨

igc_put_hw_semaphore — okay so this is the function that releases the hardware semaphore, and yes that is literally the whole personality 🌸

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🦋 SYNOPSIS 🦋

void igc_put_hw_semaphore (struct igc_hw *hw );

That's it. That's the whole call. Void return, one pointer, zero drama 💅

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🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure 💖 this is the struct igc_hw * you pass in, the one and only thing it wants from you. Give it the hardware struct and let it cook.

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🔥 DESCRIPTION 🔥

So what does it do? It releases the hardware semaphore used to access the PHY or NVM ✨ that's the whole vibe.

Think of it like this: some other function grabbed the semaphore so it could talk to the PHY or the NVM, and this is the polite little "okay i'm done, you can go now 🫶" that hands it back. No cap, that's it. Very main character of it to be this short and still be load-bearing 😭

ngl, it's giving "small function, big responsibility" — it's the counterpart to grabbing the semaphore, so like, don't leave the hardware hanging 🙈

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🌈 SEE ALSO 🌈

The source lives in the kernel file ./drivers/net/ethernet/intel/igc/igc_mac.c 📁 — that's where you'll find it fr fr.

And here's the whole friend group, all in one go, because these are all (9) kernel API pages and they all showed up to the party 🎉:

• igc_disable_pcie_master(9)
• igc_init_rx_addrs(9)
• igc_set_fc_watermarks(9)
• igc_setup_link(9)
• igc_force_mac_fc(9)
• igc_clear_hw_cntrs_base(9)
• igc_rar_set(9)
• igc_check_for_copper_link(9)
• igc_config_collision_dist(9)
• igc_config_fc_after_link_up(9)
• igc_get_auto_rd_done(9)
• igc_get_speed_and_duplex_copper(9)
• igc_enable_mng_pass_thru(9)
• igc_hash_mc_addr(9)
• igc_update_mc_addr_list(9)

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Okay that's the whole page, bestie 💜 this came out of the ./drivers/net/ethernet/intel/igc directory, dated October 2026, in the Kernel API Manual, filed under igc_put_hw_semaphore(9) — go release that semaphore, i believe in you, slay 🫶✨