__igb_open(9)

💅 __igb_open(9) — the kernel manual but make it cute ✨

okay so bestie, this is __igb_open(9) from the Kernel API Manual, and it's literally the function that gets called when a network interface is made active. it's giving main character energy for your NIC, no cap 💖

🌸 SYNOPSIS 🌸

int __igb_open (struct net_device *netdev , bool resuming );

🎀 ARGUMENTS 🎀

• netdev — the network interface device structure, the whole vibe of the NIC basically 🦋
• resuming — this one's a bool that tells you whether we're in a resume call, iykyk

✨ DESCRIPTION ✨

So this function returns 0 on success and a negative value on failure — that's the whole mood. 💅

The open entry point is called when a network interface is made active by the system (IFF_UP). At this point, literally all the resources needed for transmit and receive operations are allocated, the interrupt handler is registered with the OS, the watchdog timer is started, and the stack is notified that the interface is ready. it's a whole glow-up for your interface, periodt 🔥

👑 SEE ALSO 👑

Kernel file ./drivers/net/ethernet/intel/igb/igb_main.c — that's where the magic lives, go read it bestie 📖

• igb_get_i2c_data(9)
• igb_set_i2c_data(9)
• igb_set_i2c_clk(9)
• igb_get_i2c_clk(9)
• igb_get_hw_dev(9)
• igb_init_module(9)
• igb_exit_module(9)
• igb_cache_ring_register(9)
• igb_write_ivar(9)
• igb_configure_msix(9)
• igb_request_msix(9)
• igb_free_q_vector(9)
• igb_reset_q_vector(9)
• igb_free_q_vectors(9)
• igb_clear_interrupt_scheme(9)
• igb_set_interrupt_capability(9)
• igb_alloc_q_vector(9)
• igb_alloc_q_vectors(9)
• igb_init_interrupt_scheme(9)
• igb_request_irq(9)
• igb_irq_disable(9)
• igb_irq_enable(9)
• igb_release_hw_control(9)
• igb_get_hw_control(9)
• igb_config_tx_modes(9)
• igb_setup_tx_mode(9)
• igb_configure(9)
• igb_power_up_link(9)
• igb_power_down_link(9)
• igb_check_swap_media(9)
• igb_up(9)
• igb_set_i2c_bb(9)
• igb_set_fw_version(9)
• igb_init_mas(9)
• igb_init_i2c(9)
• igb_probe(9)
• igb_remove_i2c(9)
• igb_remove(9)
• igb_probe_vfs(9)
• igb_sw_init(9)
• __igb_close(9)
• igb_setup_tx_resources(9)
• igb_setup_all_tx_resources(9)
• igb_setup_tctl(9)
• igb_configure_tx_ring(9)
• igb_configure_tx(9)
• igb_setup_rx_resources(9)
• igb_setup_all_rx_resources(9)
• igb_setup_mrqc(9)
• igb_setup_rctl(9)
• igb_setup_srrctl(9)
• igb_configure_rx_ring(9)
• igb_configure_rx(9)
• igb_free_tx_resources(9)
• igb_free_all_tx_resources(9)
• igb_clean_tx_ring(9)
• igb_clean_all_tx_rings(9)
• igb_free_rx_resources(9)
• igb_free_all_rx_resources(9)
• igb_clean_rx_ring(9)
• igb_clean_all_rx_rings(9)
• igb_set_mac(9)
• igb_write_mc_addr_list(9)
• igb_set_rx_mode(9)
• igb_has_link(9)
• igb_check_lvmmc(9)
• igb_watchdog(9)
• igb_update_ring_itr(9)
• igb_update_itr(9)
• igb_tx_timeout(9)
• igb_get_stats64(9)
• igb_change_mtu(9)
• igb_update_stats(9)
• igb_set_uta(9)
• igb_intr_msi(9)
• igb_intr(9)
• igb_poll(9)
• igb_clean_tx_irq(9)
• igb_reuse_rx_page(9)
• igb_add_rx_frag(9)
• igb_is_non_eop(9)
• igb_cleanup_headers(9)
• igb_process_skb_fields(9)
• igb_alloc_rx_buffers(9)
• igb_mii_ioctl(9)
• igb_ioctl(9)
• igb_io_error_detected(9)
• igb_io_slot_reset(9)
• igb_io_resume(9)
• igb_rar_set_index(9)
• igb_read_i2c_byte(9)
• igb_write_i2c_byte(9)

okay and listen, the source of all this slay is ./drivers/net/ethernet/intel/igb, dated October 2026, and it's all about __igb_open(9) — go off igb driver, we love to see it 💜🌸✨