ixgbe_is_sfp_probe(9)

💖 ixgbe_is_sfp_probe 💖

okay so bestie, welcome to another ✨iconic✨ page from the Kernel API Manual — today's main character is ixgbe_is_sfp_probe(9), and ngl it is a whole vibe of a little helper. Let's get into it 🫶

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🌸 NAME 🌸

ixgbe_is_sfp_probe — returns true if SFP is being detected ✨ (that's literally the whole job, and she does it well 💅)

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🦋 SYNOPSIS 🦋

bool ixgbe_is_sfp_probe (struct ixgbe_hw *hw , u8 offset , u8 addr );

like… it's giving "small function, big responsibilities" 😭 it's a bool returner, so you already know you're getting a yes-or-no, no in-between 🎀

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💜 ARGUMENTS 💜

• hw — pointer to hardware structure 🔥 literally the hardware itself, go off king 👑
• offset — eeprom offset to be read 💖 this is where in the eeprom we're poking around, iykyk
• addr — I2C address to be read 🌈 the I2C address that's getting read, periodt

lowkey important: hw is a pointer, so, y'know… make sure it's a real one before you go dereferencing it 🙈 no cap.

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👑 SEE ALSO 👑

so bestie, here's the part where the manpage dumps literally everyone who's ever hung out with this function, and I am obsessed with the sheer length of it. gather round, these are all (9) sections in the Kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c 🧚:

• 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_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 cross-references?? she's popular, she's connected, she's the moment 💅✨

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and that's the whole page bestie!! 🎀 this cutie was pulled from ./drivers/net/ethernet/intel/i... (yes the footer truncates it like that, we don't make the rules 😭) and it's dated October 2026 ⭐ go forth and detect those SFPs, love u, bye 🦋💖