ixgbe_out_i2c_byte_ack(9)

🎀 ixgbe_out_i2c_byte_ack(9) 🎀

okay bestie, welcome to the Kernel API Manual, section 9 — yes, the real one, we're literally in the kernel docs right now 💅 this little page is all about one tiny function that pushes a byte out over I2C and waits for the ack. lowkey iconic behavior.

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✨ NAME ✨

ixgbe_out_i2c_byte_ack — Send I2C byte with ack. that's the whole vibe, no notes 🫶

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🌸 SYNOPSIS 🌸

int ixgbe_out_i2c_byte_ack (struct ixgbe_hw *hw , u8 byte );

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🦋 ARGUMENTS 🦋

• hw — pointer to the hardware structure. yes the big struct, she's the main character here 👑
• byte — byte to send. one single byte, out it goes 💌

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💜 DESCRIPTION 💜

Returns an error code on error. that's it, that's the description 😭 short and sweet, fr fr — so if something goes wrong, you get an error code back, and that's your signal to pay attention. no cap.

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🌈 SEE ALSO 🌈

first up, the literal source file, right here in the kernel tree:

./drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c

and now the whole entire friend group — every single one of these cuties, no skipping, i promised:

• ixgbe_in_i2c_byte_ack(9)
• ixgbe_ones_comp_byte_add(9)
• ixgbe_read_i2c_combined_generic_int(9)
• ixgbe_write_i2c_combined_generic_int(9)
• ixgbe_probe_phy(9)
• ixgbe_identify_phy_generic(9)
• ixgbe_check_reset_blocked(9)
• ixgbe_get_phy_id(9)
• ixgbe_get_phy_type_from_id(9)
• ixgbe_reset_phy_generic(9)
• ixgbe_read_phy_reg_mdi(9)
• ixgbe_read_phy_reg_generic(9)
• ixgbe_write_phy_reg_mdi(9)
• ixgbe_write_phy_reg_generic(9)
• ixgbe_msca_cmd(9)
• ixgbe_mii_bus_read_generic_c22(9)
• ixgbe_mii_bus_read_generic_c45(9)
• ixgbe_mii_bus_write_generic_c22(9)
• ixgbe_mii_bus_write_generic_c45(9)
• ixgbe_mii_bus_read_c22(9)
• ixgbe_mii_bus_read_c45(9)
• ixgbe_mii_bus_write_c22(9)
• ixgbe_mii_bus_write_c45(9)
• ixgbe_x550em_a_mii_bus_read_c22(9)
• ixgbe_x550em_a_mii_bus_read_c45(9)
• ixgbe_x550em_a_mii_bus_write_c22(9)
• ixgbe_x550em_a_mii_bus_write_c45(9)
• ixgbe_get_first_secondary_devfn(9)
• ixgbe_x550em_a_has_mii(9)
• ixgbe_mii_bus_init(9)
• ixgbe_setup_phy_link_generic(9)
• ixgbe_setup_phy_link_speed_generic(9)
• ixgbe_get_copper_speeds_supported(9)
• ixgbe_get_copper_link_capabilities_generic(9)
• ixgbe_check_phy_link_tnx(9)
• ixgbe_setup_phy_link_tnx(9)
• ixgbe_reset_phy_nl(9)
• ixgbe_identify_module_generic(9)
• ixgbe_identify_sfp_module_generic(9)
• ixgbe_identify_qsfp_module_generic(9)
• ixgbe_get_sfp_init_sequence_offsets(9)
• ixgbe_read_i2c_eeprom_generic(9)
• ixgbe_read_i2c_sff8472_generic(9)
• ixgbe_write_i2c_eeprom_generic(9)
• ixgbe_is_sfp_probe(9)
• ixgbe_read_i2c_byte_generic_int(9)
• ixgbe_read_i2c_byte_generic(9)
• ixgbe_read_i2c_byte_generic_unlocked(9)
• ixgbe_write_i2c_byte_generic_int(9)
• ixgbe_write_i2c_byte_generic(9)
• ixgbe_write_i2c_byte_generic_unlocked(9)
• ixgbe_i2c_start(9)
• ixgbe_i2c_stop(9)
• ixgbe_clock_in_i2c_byte(9)
• ixgbe_clock_out_i2c_byte(9)
• ixgbe_get_i2c_ack(9)
• ixgbe_clock_in_i2c_bit(9)
• ixgbe_clock_out_i2c_bit(9)
• ixgbe_raise_i2c_clk(9)
• ixgbe_lower_i2c_clk(9)
• ixgbe_set_i2c_data(9)
• ixgbe_get_i2c_data(9)
• ixgbe_i2c_bus_clear(9)
• ixgbe_tn_check_overtemp(9)

like. sixty-four of them. she knows everyone at the party 💀✨ respect honestly.

quick reminder bestie: that's the registered sequence — don't go assuming they behave a certain way just because the names are cute. the names are the names, the behaviour lives in the source 🫶

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that's the page!! mwah 💋 source lives at ./drivers/net/ethernet/intel/i... (yes it's abbreviated up there, blame the footer, not me 🙈) and we're stamped October 2026. go forth and ack your bytes, queen 👑💖