STRUCT ETHTOOL_DRVINFO(9)

💁‍♀️ struct ethtool_drvinfo — the little info packet that tells you EVERYTHING about your driver 🎀

okay bestie, so this is a page from the Kernel API Manual, and it's about struct ethtool_drvinfo — literally the glow-up info card for your driver and device 🌸. Think of it as the driver's little bio: who it is, what version it's on, what firmware it's running, where it lives on the bus, all of it. Obsessed 💖.

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✨ NAME ✨

struct ethtool_drvinfo — general driver and device information. it's giving "hi my name is and here's my whole resume" 💅

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🦋 SYNOPSIS 🦋

struct ethtool_drvinfo {
    __u32 cmd;
    char driver[32];
    char version[32];
    char fw_version[ETHTOOL_FWVERS_LEN];
    char bus_info[ETHTOOL_BUSINFO_LEN];
    char erom_version[ETHTOOL_EROMVERS_LEN];
    char reserved2[12];
    __u32 n_priv_flags;
    __u32 n_stats;
    __u32 testinfo_len;
    __u32 eedump_len;
    __u32 regdump_len;
 };

like, that's the whole struct, no cap. every field copied exactly, don't come for me ✋

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🧚 MEMBERS 🧚

okay so let's go field by field, bestie, because each one is a whole personality 🫶

• cmd — the command number, and it equals ETHTOOL_GDRVINFO. that's literally its whole job ✨
• driver — the driver's short name. it should normally match the name in its bus driver structure (e.g. pci_driver::name). Must not be an empty string — like, it can't just show up with no name, that's not the vibe 🙈
• version — the driver version string. it may be an empty string, so if it ghosts you, that's allowed 💀
• fw_version — firmware version string, and it's driver defined. may be an empty string too, lowkey chill about it 🌈
• bus_info — the device bus address. this should match the dev_name string for the underlying bus device, if there is one. may be an empty string — so like, it's optional, iykyk 🦋
• erom_version — Expansion ROM version string, driver defined, may be an empty string. fancy 💅
• reserved2 — reserved for future use. see the note on reserved space 👀 (yes, it's the "we're saving this seat for someone" of the struct)
• n_priv_flags — number of flags valid for the ETHTOOL_GPFLAGS and ETHTOOL_SPFLAGS commands; also the number of strings in the ETH_SS_PRIV_FLAGS set. double duty icon 👑
• n_stats — number of u64 statistics returned by the ETHTOOL_GSTATS command; also the number of strings in the ETH_SS_STATS set. stats queen fr fr 📊
• testinfo_len — number of results returned by the ETHTOOL_TEST command; also the number of strings in the ETH_SS_TEST set 🧪
• eedump_len — size of EEPROM accessible through the ETHTOOL_GEEPROM and ETHTOOL_SEEPROM commands, in bytes ⭐
• regdump_len — size of the register dump returned by the ETHTOOL_GREGS command, in bytes 🔥

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🌈 DESCRIPTION 🌈

so here's the tea: users can use the ETHTOOL_GSSET_INFO command to get the number of strings in any string set (from Linux 2.6.34). that's it, that's the whole description, and it ate 💖

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🌸 SEE ALSO 🌸

buckle up bestie, this list is LONG and every single one is here, don't skip 💀

Kernel file ./include/uapi/linux/ethtool.h, struct ethtool_cmd(9), struct ethtool_wolinfo(9), struct ethtool_regs(9), struct ethtool_eeprom(9), struct ethtool_eee(9), struct ethtool_modinfo(9), struct ethtool_coalesce(9), struct ethtool_ringparam(9), struct ethtool_channels(9), struct ethtool_pauseparam(9), enum ethtool_stringset(9), enum ethtool_mac_stats_src(9), enum ethtool_module_power_mode_policy(9), enum ethtool_module_power_mode(9), enum ethtool_c33_pse_ext_state(9), enum ethtool_c33_pse_ext_substate_mr_mps_valid(9), enum ethtool_c33_pse_ext_substate_error_condition(9), enum ethtool_c33_pse_ext_substate_mr_pse_enable(9), enum ethtool_c33_pse_ext_substate_option_detect_ted(9), enum ethtool_c33_pse_ext_substate_option_vport_lim(9), enum ethtool_c33_pse_ext_substate_ovld_detected(9), enum ethtool_c33_pse_ext_substate_power_not_available(9), enum ethtool_c33_pse_ext_substate_short_detected(9), enum ethtool_pse_types(9), enum ethtool_c33_pse_admin_state(9), enum ethtool_c33_pse_pw_d_status(9), enum ethtool_podl_pse_admin_state(9), enum ethtool_podl_pse_pw_d_status(9), enum ethtool_mm_verify_status(9), enum ethtool_module_fw_flash_status(9), struct ethtool_gstrings(9), struct ethtool_sset_info(9), enum ethtool_test_flags(9), struct ethtool_test(9), struct ethtool_stats(9), struct ethtool_perm_addr(9), struct ethtool_tcpip4_spec(9), struct ethtool_ah_espip4_spec(9), struct ethtool_usrip4_spec(9), struct ethtool_tcpip6_spec(9), struct ethtool_ah_espip6_spec(9), struct ethtool_usrip6_spec(9), struct ethtool_flow_ext(9), struct ethtool_rx_flow_spec(9), struct ethtool_rxnfc(9), struct ethtool_rxfh_indir(9), struct ethtool_rxfh(9), struct ethtool_rx_ntuple_flow_spec(9), struct ethtool_rx_ntuple(9), struct ethtool_dump(9), struct ethtool_get_features_block(9), struct ethtool_gfeatures(9), struct ethtool_set_features_block(9), struct ethtool_sfeatures(9), struct ethtool_ts_info(9), struct ethtool_per_queue_op(9), struct ethtool_fecparam(9), enum ethtool_fec_config_bits(9), struct ethtool_link_settings(9), enum phy_upstream(9)

like, that's a whole friend group and we love them all 🫶✨

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💖 little sign-off from me to you: this page lives in ./include/uapi/linux, it's dated October 2026, and it's from the Kernel API Manual (that's the source/version vibe babe). go forth and ETHTOOL_GDRVINFO responsibly, bestie. slay 💅👑