ixgbe_write...ric_unlocked(9)

💅 ixgbe_write_i2c_combined_generic_unlocked(9) 💅

okay so grab a snack bestie because we're diving into the Kernel API Manual — this one lives in section 9, the big-brain kernel hacker section, and it's all about doing an I2C write combined operation on your ixgbe NIC. no cap, it's a whole vibe of a function name, but the job is simple: shove a value into a register on the I2C bus and tell you if it went sideways ✨

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🌸 NAME 🌸

ixgbe_write_i2c_combined_generic_unlocked — literally does the I2C write combined operation. that's it, that's the tweet 🐦

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🎀 SYNOPSIS 🎀

int ixgbe_write_i2c_combined_generic_unlocked (struct ixgbe_hw *hw , u8
addr , u16 reg , u16 val );

so you call it like that, it hands you back an int, and it takes exactly those four things. slay 💅

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🦋 ARGUMENTS 🦋

• hw — pointer to the hardware structure 🌟 like, the whole hardware vibe, passed in by pointer.
• addr — the I2C bus address you're writing to 📬
• reg — the I2C device register you're writing to 🎯
• val — the value you're writing, that's the payload bestie 💌

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🔥 DESCRIPTION 🔥

Returns an error code on error. 👑 yes that's genuinely the whole description, short and iconic, we love a low-word-count king. if everything's chill it won't be returning an error code, iykyk. and the "unlocked" in the name is right there in the name, so keep that in mind — this is the version that doesn't do the locking for you, fr fr.

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🌈 SEE ALSO 🌈

the kernel file it lives in, in all its glory:

• ./drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c

and literally the entire friend group of related functions, all in section 9, all documented, all here 💖:

• ixgbe_read_cs4227(9)
• ixgbe_write_cs4227(9)
• ixgbe_read_pe(9)
• ixgbe_write_pe(9)
• ixgbe_reset_cs4227(9)
• ixgbe_check_cs4227(9)
• ixgbe_read_i2c_combined_generic(9)
• ixgbe_read_i2c_combined_generic_unlocked(9)
• ixgbe_write_i2c_combined_generic(9)
• ixgbe_fw_phy_activity(9)
• ixgbe_get_phy_id_fw(9)
• ixgbe_identify_phy_fw(9)
• ixgbe_shutdown_fw_phy(9)
• ixgbe_setup_fw_link(9)
• ixgbe_fc_autoneg_fw(9)
• ixgbe_iosf_wait(9)
• ixgbe_get_phy_token(9)
• ixgbe_put_phy_token(9)
• ixgbe_write_iosf_sb_reg_x550a(9)
• ixgbe_read_iosf_sb_reg_x550a(9)
• ixgbe_get_bus_info_X550em(9)
• ixgbe_fw_recovery_mode_X550(9)
• ixgbe_setup_ixfi_x550em_x(9)
• ixgbe_restart_an_internal_phy_x550em(9)
• ixgbe_supported_sfp_modules_X550em(9)
• ixgbe_setup_mac_link_sfp_x550em(9)
• ixgbe_setup_sfi_x550a(9)
• ixgbe_setup_mac_link_sfp_n(9)
• ixgbe_setup_mac_link_sfp_x550a(9)
• ixgbe_setup_mac_link_t_X550em(9)
• ixgbe_setup_sgmii(9)
• ixgbe_setup_sgmii_fw(9)
• ixgbe_fc_autoneg_sgmii_x550em_a(9)
• ixgbe_get_lasi_ext_t_x550em(9)
• ixgbe_enable_lasi_ext_t_x550em(9)
• ixgbe_handle_lasi_ext_t_x550em(9)
• ixgbe_setup_kr_speed_x550em(9)
• ixgbe_setup_kr_x550em(9)
• ixgbe_led_on_t_x550em(9)
• ixgbe_led_off_t_x550em(9)
• ixgbe_set_fw_drv_ver_x550(9)
• ixgbe_setup_fc_x550em(9)
• ixgbe_fc_autoneg_backplane_x550em_a(9)
• ixgbe_fc_autoneg_fiber_x550em_a(9)
• ixgbe_reset_phy_fw(9)
• ixgbe_check_overtemp_fw(9)
• ixgbe_read_mng_if_sel_x550em(9)
• ixgbe_set_mdio_speed(9)
• ixgbe_setup_fc_backplane_x550em_a(9)
• ixgbe_set_mux(9)
• ixgbe_acquire_swfw_sync_X550em(9)
• ixgbe_release_swfw_sync_X550em(9)
• ixgbe_acquire_swfw_sync_x550em_a(9)
• ixgbe_release_swfw_sync_x550em_a(9)
• ixgbe_read_phy_reg_x550a(9)
• ixgbe_write_phy_reg_x550a(9)
• ixgbe_enable_mdd_x550(9)
• ixgbe_disable_mdd_x550(9)
• ixgbe_restore_mdd_vf_x550(9)
• ixgbe_handle_mdd_x550(9)

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no warnings, no bugs, no funky deprecated notes on this page — it's a clean little write function, so go forth and write combined 🫶

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kisses bestie, that's the whole page 💜 this lil beauty comes from ./drivers/net/ethernet/intel/i... (the source path got cut off with an ellipsis in the original, iconic of it honestly), dated October 2026, and it's filed under ixgbe_write...ric_unlocked(9) — go be the main character of your own I2C bus 🌟