e1000_copper_link_preconfig(9)

💖 e1000_copper_link_preconfig(9) — like, the Kernel API Manual page, bestie 💖

okay so you opened the manual page for e1000_copper_link_preconfig(9) from the Kernel API Manual and honestly? good for you. this is the lil pre-game ritual for copper links and i'm obsessed. let's get into it 🫶

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✨ NAME ✨

e1000_copper_link_preconfig — early configuration for copper 🌸

like, the before before. the getting-ready-with-a-face-mask of link setup. no cap.

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✨ SYNOPSIS ✨

s32 e1000_copper_link_preconfig (struct e1000_hw *hw );

she takes one arg, she returns an s32, she's iconic 💅

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✨ ARGUMENTS ✨

• hw — the struct containing variables accessed by shared code. yes bestie, shared code — everybody's dipping into this one 🍓

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✨ DESCRIPTION ✨

Make sure we have a valid PHY and change PHY mode before link setup. 🔥

that's it, that's the whole vibe check: confirm the PHY is real and valid, then switch the PHY mode, and only then do we go do actual link setup. lowkey important, highkey underrated. periodt.

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✨ SEE ALSO ✨

the kernel file lives at ./drivers/net/ethernet/intel/e1000/e1000_hw.c — go say hi 👑

and then there's the whole friend group, literally all of them, no one left out:

• e1000_set_phy_type(9), e1000_phy_init_script(9), e1000_set_mac_type(9)
• e1000_set_media_type(9), e1000_reset_hw(9), e1000_init_hw(9)
• e1000_adjust_serdes_amplitude(9), e1000_setup_link(9), e1000_setup_fiber_serdes_link(9)
• e1000_copper_link_rtl_setup(9), e1000_copper_link_igp_setup(9), e1000_copper_link_mgp_setup(9)
• e1000_copper_link_autoneg(9), e1000_copper_link_postconfig(9), e1000_setup_copper_link(9)
• e1000_phy_setup_autoneg(9), e1000_phy_force_speed_duplex(9), e1000_config_collision_dist(9)
• e1000_config_mac_to_phy(9), e1000_force_mac_fc(9), e1000_config_fc_after_link_up(9)
• e1000_check_for_serdes_link_generic(9), e1000_check_for_link(9), e1000_get_speed_and_duplex(9)
• e1000_wait_autoneg(9), e1000_raise_mdi_clk(9), e1000_lower_mdi_clk(9)
• e1000_shift_out_mdi_bits(9), e1000_shift_in_mdi_bits(9), e1000_read_phy_reg(9)
• e1000_write_phy_reg(9), e1000_phy_hw_reset(9), e1000_phy_reset(9)
• e1000_detect_gig_phy(9), e1000_phy_reset_dsp(9), e1000_phy_igp_get_info(9)
• e1000_phy_m88_get_info(9), e1000_phy_get_info(9), e1000_init_eeprom_params(9)
• e1000_raise_ee_clk(9), e1000_lower_ee_clk(9), e1000_shift_out_ee_bits(9)
• e1000_shift_in_ee_bits(9), e1000_acquire_eeprom(9), e1000_standby_eeprom(9)
• e1000_release_eeprom(9), e1000_spi_eeprom_ready(9), e1000_read_eeprom(9)
• e1000_validate_eeprom_checksum(9), e1000_update_eeprom_checksum(9), e1000_write_eeprom(9)
• e1000_write_eeprom_spi(9), e1000_write_eeprom_microwire(9), e1000_read_mac_addr(9)
• e1000_init_rx_addrs(9), e1000_hash_mc_addr(9), e1000_rar_set(9)
• e1000_write_vfta(9), e1000_clear_vfta(9), e1000_setup_led(9)
• e1000_cleanup_led(9), e1000_led_on(9), e1000_led_off(9)
• e1000_clear_hw_cntrs(9), e1000_reset_adaptive(9), e1000_update_adaptive(9)
• e1000_get_bus_info(9), e1000_write_reg_io(9), e1000_get_cable_length(9)
• e1000_check_polarity(9), e1000_check_downshift(9), e1000_config_dsp_after_link_change(9)
• e1000_set_phy_mode(9), e1000_set_d3_lplu_state(9), e1000_set_vco_speed(9)
• e1000_enable_mng_pass_thru(9), e1000_get_auto_rd_done(9), e1000_get_phy_cfg_done(9)

like i said. the whole group chat 🧚

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that's the page!! the source line for this one is ./drivers/net/ethernet/intel/e... and it's dated October 2026, and it's filed under e1000_copper_link_preconfig(9) — mwah, go read it again, it's giving main character energy 💜🎀