ixgbe_read_i...sb_reg_x550a(9)

💅 ixgbe_read_i...sb_reg_x550a(9) — Kernel API Manual ✨

okay so bestie, welcome to the little corner of the Kernel API Manual about a function with a name so long they literally had to truncate it in the header (ixgbe_read_i...sb_reg_x550a). iconic behaviour honestly 🎀

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🌸 NAME 🌸

ixgbe_read_iosf_sb_reg_x550a — the function that reads from an IOSF PHY register. yes that's the whole vibe. read. register. slay. 💖

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⭐ SYNOPSIS ⭐

int ixgbe_read_iosf_sb_reg_x550a (struct ixgbe_hw *hw , u32 reg_addr ,
u32 device_type , u32 *data );

four args, one int coming back at you. no cap, that's it 🫶

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🦋 ARGUMENTS 🦋

• hw — pointer to hardware structure. the main character of the whole operation, honestly 👑
• reg_addr — 32 bit PHY register to write. and yeah bestie, the manpage itself says write on a read function 💀 not me pointing it out, i'm just the messenger, keeping it exactly as it was written fr fr
• device_type — 3 bit device type. tiny little number, big responsibilities ✨
• data — pointer to read data from the register. this is where the good stuff lands 🍓

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🌈 SEE ALSO 🌈

the whole extended friend group, no one left out, we don't do exclusion here 💜 every single one of these:

• Kernel file ./drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
• 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_write_i2c_combined_generic_unlocked(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_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)

like... that is a list and we love her for it 🌸

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friendly little warning bestie: everything above is verbatim from the page, so if you're about to go poke at registers, read the real thing in ./drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c before you commit 🙈

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okay and finally the credits moment because everyone deserves their flowers 💐 this page came from the source ./drivers/net/ethernet/intel/i... (yes, truncated, the manpage said so, not me 💀), dated October 2026, and it lives in the ixgbe_read_i...sb_reg_x550a(9) era of the Kernel API Manual. ate and left no crumbs ✨👑💖