netdev_set_eeprom(9)

🦋 netdev_set_eeprom — Kernel API Manual energy 🦋

okay so bestie, welcome to the netdev_set_eeprom(9) page, straight out of the Kernel API Manual. this is the little guy that writes EEPROM data. that's it. that's the whole vibe. let's get into it 💅

---

✨ NAME ✨

netdev_set_eeprom — write EEPROM data. yes literally, that's the entire name section, she's lowkey ✨iconic✨ for keeping it short 🎀

---

🌸 SYNOPSIS 🌸

int netdev_set_eeprom (struct net_device *dev , struct ethtool_eeprom
*eeprom , u8 *data );

that's the whole signature, no cap. three args, one int coming back at you 🫶

---

🎀 ARGUMENTS 🎀

• dev — the Network device. your actual netdev bestie, the one going through it 💖
• eeprom — the Ethtool EEPROM data structure. this is the little struct carrying the deets 📋
• data — the Data buffer. the actual bytes you're yeeting in there 🍓

---

🔥 DESCRIPTION 🔥

okay so this is the important part, listen up: this function modifies the EEPROM data one byte at a time. like, literally one. byte. at. a. time. no shortcuts, no bulk mode, it's giving patient main character energy 🧚

and the return situash? she returns 0 if it worked, otherwise an error code. slay when it's zero, cry when it's not 😭

---

💜 SEE ALSO 💜

ngl this list is long — like, "the way that this goes on for multiple screens" long — but every single one of these is part of the friend group, so here we go, no skipping, no cap 💅

first up, the kernel file this whole thing lives next to:

• ./drivers/net/ethernet/micrel/ksz884x.c

then the structs, in order, all of them 🦋

• struct ksz_hw_desc(9), struct ksz_sw_desc(9), struct ksz_dma_buf(9), struct ksz_desc(9), struct ksz_desc_info(9), struct ksz_mac_table(9)
• struct ksz_vlan_table(9), struct ksz_port_mib(9), struct ksz_port_cfg(9), struct ksz_switch(9), struct ksz_port_info(9), struct ksz_hw(9)
• struct ksz_port(9), struct ksz_timer_info(9), struct ksz_shared_mem(9), struct ksz_counter_info(9), struct dev_info(9), struct dev_priv(9)

then the hardware/switch function crew 💀

• hw_turn_on_intr(9), hw_block_intr(9), sw_r_table(9), sw_w_table_64(9), sw_w_sta_mac_table(9), sw_r_vlan_table(9)
• port_r_mib_cnt(9), port_r_mib_pkt(9), port_r_cnt(9), port_init_cnt(9), port_cfg(9), port_r8(9), port_r16(9), port_w16(9)
• sw_chk(9), sw_cfg(9), sw_cfg_broad_storm(9), sw_get_broad_storm(9), sw_dis_broad_storm(9), sw_ena_broad_storm(9)
• sw_init_broad_storm(9), hw_cfg_broad_storm(9), sw_dis_prio_rate(9), sw_init_prio_rate(9), sw_dis_diffserv(9), sw_dis_802_1p(9)
• sw_cfg_replace_null_vid(9), sw_cfg_replace_vid(9), sw_cfg_port_based(9), sw_dis_multi_queue(9), sw_init_prio(9), port_get_def_vid(9)
• sw_init_vlan(9), sw_cfg_port_base_vlan(9), sw_set_addr(9), sw_set_global_ctrl(9), port_set_stp_state(9), sw_clr_sta_mac_table(9)
• sw_init_stp(9), sw_block_addr(9), hw_r_phy(9), hw_w_phy(9), eeprom_read(9), eeprom_write(9)
• port_get_link_speed(9), port_set_link_speed(9), port_force_link_speed(9), hw_chk_wol_pme_status(9), hw_clr_wol_pme_status(9), hw_cfg_wol_pme(9)
• hw_cfg_wol(9), hw_set_wol_frame(9), hw_add_wol_arp(9), hw_add_wol_bcast(9), hw_add_wol_mcast(9), hw_add_wol_ucast(9), hw_enable_wol(9)
• hw_init(9), hw_reset(9), hw_setup(9), hw_setup_intr(9), hw_set_desc_base(9), hw_start_rx(9), hw_stop_rx(9)
• hw_start_tx(9), hw_stop_tx(9), hw_disable(9), hw_enable(9), hw_alloc_pkt(9), hw_send_pkt(9)
• hw_set_addr(9), hw_read_addr(9), hw_clr_multicast(9), hw_set_grp_addr(9), hw_set_multicast(9), hw_set_promiscuous(9)
• sw_enable(9), sw_setup(9), ksz_start_timer(9), ksz_stop_timer(9), ksz_alloc_soft_desc(9), ksz_alloc_desc(9)
• free_dma_buf(9), ksz_init_rx_buffers(9), ksz_alloc_mem(9), ksz_free_desc(9), ksz_free_buffers(9), ksz_free_mem(9)
• send_packet(9), transmit_cleanup(9), tx_done(9), netdev_tx(9), netdev_tx_timeout(9), netdev_intr(9), netdev_close(9), netdev_open(9)
• netdev_query_statistics(9), netdev_set_mac_address(9), netdev_set_rx_mode(9), netdev_ioctl(9), mdio_read(9), mdio_write(9)
• netdev_get_link_ksettings(9), netdev_set_link_ksettings(9), netdev_nway_reset(9), netdev_get_link(9), netdev_get_drvinfo(9)
• netdev_get_regs_len(9), netdev_get_regs(9), netdev_get_wol(9), netdev_set_wol(9), netdev_get_msglevel(9), netdev_set_msglevel(9)
• netdev_get_eeprom_len(9), netdev_get_eeprom(9), netdev_get_pauseparam(9), netdev_set_pauseparam(9), netdev_get_ringparam(9)
• netdev_get_strings(9), netdev_get_sset_count(9), netdev_get_ethtool_stats(9), netdev_set_features(9), dev_monitor(9), netdev_init(9)

periodt. every single one of them made the list 💖

---

aaaand that's the page bestie 🫶 this one came from ./drivers/net/ethernet/micrel, dated October 2026 — go read the whole squad of (9) pages, iykyk 🌈⭐👑