ixgbe_mii_bus_read_c22(9)

💖 ixgbe_mii_bus_read_c22 💖

okay so bestie, this is a page from the Kernel API Manual (yes, the kernel's own group chat) and today's main character is ixgbe_mii_bus_read_c22(9). her whole job? reading a clause 22 register. that's it. that's the vibe. 🎀

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✨ NAME ✨

ixgbe_mii_bus_read_c22 — read a clause 22 register 🌸

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✨ SYNOPSIS ✨

int ixgbe_mii_bus_read_c22 (struct mii_bus *bus , int addr , int regnum
);

like, that's the whole signature. yes she takes three arguments. yes she returns an int. we love a low-maintenance queen. 👑

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✨ ARGUMENTS ✨

• bus — pointer to the mii_bus structure, which points to our driver private stuff 🫶 (it's giving "my friend knows a guy who knows the driver" energy, but make it C)
• addr — the address 📍
• regnum — the register number 🔢

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✨ SEE ALSO ✨

the kernel file lives at ./drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c — that's the whole neighborhood, and honestly every single neighbor on this block showed up to the party. no cap, the full guest list:

• 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_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… the whole extended family reunion and everyone brought a casserole. 😭💜

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and that's the page, bestie 🦋 — footer tea for the record books: this gem comes from the kernel source path ./drivers/net/ethernet/intel/i... (the terminal cut it off, not me, iykyk) and it's dated October 2026, stamped ixgbe_mii_bus_read_c22(9). slay, periodt, go read some clause 22 registers 💅✨