igc_write_xmdio_reg(9)

💖 NAME 💖

Ok so bestie, welcome to the igc_write_xmdio_reg(9) page from the Kernel API Manual — you found it, slay ✨. This function is literally here to Write XMDIO register. That's the whole assignment, no cap 💅.

✨ SYNOPSIS ✨

The exact signature is giving “four parameters and a return type,” so keep it correct, fr fr:

s32 igc_write_xmdio_reg (struct igc_hw *hw , u16 addr , u8 dev_addr ,
       u16 data );

🎀 ARGUMENTS 🎀

• hw — pointer to the HW structure. Main-character pointer energy, iykyk 🫶
• addr — XMDIO address to program. This is the address slot, periodt 🎯
• dev_addr — device address to program. The device-address slot, iconic 💖
• data — value to be written to the XMDIO address. That's the value headed to the address, bestie 💌

🦋 SEE ALSO 🦋

Lowkey there's a whole friend group here. The kernel file is ./drivers/net/ethernet/intel/igc/igc_phy.c, and these are the related manual pages — all of them, because we do not skip the crew:

• igc_check_reset_block(9)
• igc_get_phy_id(9)
• igc_phy_has_link(9)
• igc_power_up_phy_copper(9)
• igc_power_down_phy_copper(9)
• igc_check_downshift(9)
• igc_phy_hw_reset(9)
• igc_phy_setup_autoneg(9)
• igc_wait_autoneg(9)
• igc_copper_link_autoneg(9)
• igc_setup_copper_link(9)
• igc_read_phy_reg_mdic(9)
• igc_write_phy_reg_mdic(9)
• __igc_access_xmdio_reg(9)
• igc_read_xmdio_reg(9)
• igc_write_phy_reg_gpy(9)
• igc_read_phy_reg_gpy(9)
• igc_read_phy_fw_version(9)
• igc_force_speed_duplex(9)

Source: ./drivers/net/ethernet/intel/igc; manual/version vibe: Kernel API Manual; date: October 2026 — mwah 💋 go off and write that XMDIO register, bestie ✨💅