ixgbe_read_..._generic_int(9)

💅 ixgbe_read_..._generic_int(9) — from the Kernel API Manual ✨

okay so bestie, before we even start: this page lives in the Kernel API Manual and the function's government name is ixgbe_read_i2c_byte_generic_int. iconic, yes, also a mouthful. let's get into it 🫶

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🌸 NAME 🌸

ixgbe_read_i2c_byte_generic_int — literally reads an 8 bit word over I2C. that's the whole vibe.

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✨ SYNOPSIS ✨

int ixgbe_read_i2c_byte_generic_int (struct ixgbe_hw *hw , u8
byte_offset , u8 dev_addr , u8 *data , bool lock );

like, five things in, one int out. slay 💅

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🎀 ARGUMENTS 🎀

• hw — pointer to hardware structure. the main character, fr.
• byte_offset — byte offset to read. where we're looking 👀
• dev_addr — device address. who we're talking to 📬
• data — value read. this is where the good stuff lands, bestie.
• lock — true if to take and release semaphore. yes the semaphore, we're being polite. 🔒

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🦋 DESCRIPTION 🦋

so what does it do? it performs a byte read operation to the SFP module's EEPROM over the I2C interface, at a specified device address. that's it. that's the tea. ☕✨

it's giving "small function, very important job" energy ngl. one byte, one address, clinging to the EEPROM over I2C. we love a specialist. 👑

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🌈 SEE ALSO 🌈

the friend group 🫶 — and no i did not skip anybody, there are genuinely this many:

the kernel file it lives in:

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

the extended fam:

• ixgbe_out_i2c_byte_ack(9), 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(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)

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bestie this is a whole group chat, pls read the whole thing before you @ anyone 💀

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and that's the page! it came from ./drivers/net/ethernet/intel/i... and it's stamped October 2026 — like a little time capsule from the kernel, wrapped in a bow 🎀🦋 see you in the man pages, mwah 💖