igb_unlock_mbx(9)

💖 NAME 💖

igb_unlock_mbx — unlock the mailbox. This page is from the Kernel API Manual, bestie, and the manual name is igb_unlock_mbx(9) — iconic. 💅

✨ SYNOPSIS ✨

s32 igb_unlock_mbx (struct e1000_hw *hw , u16 mbx_id );

🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure. literally the hardware pointer, no cap.
• mbx_id — id of mailbox to check. yep, that's the mailbox id bestie. 🫶

💅 DESCRIPTION 💅

okay so this one is lowkey simple: it returns SUCCESS if the mailbox was unlocked, or else ERR_MBX. That's the whole vibe. ✨

🦋 SEE ALSO 🦋

the Kernel file is ./drivers/net/ethernet/intel/igb/e1000_mbx.c — go read it if you're feeling curious 👑

• igb_read_mbx(9)
• igb_write_mbx(9)
• igb_check_for_msg(9)
• igb_check_for_ack(9)
• igb_check_for_rst(9)
• igb_poll_for_msg(9)
• igb_poll_for_ack(9)
• igb_read_posted_mbx(9)
• igb_write_posted_mbx(9)
• igb_check_for_msg_pf(9)
• igb_check_for_ack_pf(9)
• igb_check_for_rst_pf(9)
• igb_obtain_mbx_lock_pf(9)
• igb_release_mbx_lock_pf(9)
• igb_write_mbx_pf(9)
• igb_read_mbx_pf(9)
• igb_init_mbx_params_pf(9)

source/version: ./drivers/net/ethernet/intel/igb · date: October 2026 · manual: igb_unlock_mbx(9) — mwah, slay, bye bestie 💋🌈