ethtool_sprintf(9)

🎀 ethtool_sprintf(9) — the Kernel API Manual, but make it cute 🎀

Ok so bestie, buckle up — this is the ethtool_sprintf page from the Kernel API Manual, and it's honestly kind of a tiny little icon. It's got one job and it does it flawlessly. 💅

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✨ NAME ✨

ethtool_sprintf — write a formatted string into ethtool string data 🫶

🌸 SYNOPSIS 🌸

void ethtool_sprintf (u8 **data , const char *fmt , ... );

🦋 ARGUMENTS 🦋

• data — a pointer to a pointer to the start of the string you're updating. Yes, double pointer. It's giving main character energy, we love her 💖
• fmt — the format of the string you want to write
• ... — the variable arguments, aka the little besties that get formatted in

💜 DESCRIPTION 💜

So what it actually does: it writes the formatted string to *data, and then it updates *data so it points at the start of the next string. Lowkey clean. Highkey iconic. ✨

That's the whole vibe — you write, it moves the pointer forward for you, no cap. 🧚

🌈 SEE ALSO 🌈

Ok this list is long, but every single one of these is literally family, so here we go — from the Kernel file ./include/linux/ethtool.h:

• enum ethtool_phys_id_state(9)
• struct kernel_ethtool_ringparam(9)
• enum ethtool_supported_ring_param(9)
• ethtool_rxfh_indir_default(9)
• struct ethtool_rxfh_context(9)
• ethtool_link_ksettings_zero_link_mode(9)
• ethtool_link_ksettings_add_link_mode(9)
• ethtool_link_ksettings_del_link_mode(9)
• ethtool_link_ksettings_test_link_mode(9)
• ethtool_intersect_link_masks(9)
• struct ethtool_phy_stats(9)
• struct ethtool_pause_stats(9)
• struct ethtool_fec_hist_range(9)
• struct ethtool_fec_stats(9)
• struct ethtool_rmon_hist_range(9)
• struct ethtool_rmon_stats(9)
• struct ethtool_ts_stats(9)
• struct ethtool_module_eeprom(9)
• struct ethtool_module_power_mode_params(9)
• struct ethtool_mm_state(9)
• struct ethtool_mm_cfg(9)
• struct ethtool_mm_stats(9)
• struct ethtool_mmsv_ops(9)
• struct ethtool_mmsv(9)
• struct ethtool_rxfh_param(9)
• struct ethtool_rxfh_fields(9)
• struct kernel_ethtool_ts_info(9)
• struct ethtool_ops(9)
• struct ethtool_netdev_state(9)
• struct ethtool_phy_ops(9)
• ethtool_set_ethtool_phy_ops(9)
• ethtool_params_from_link_mode(9)
• ethtool_get_phc_vclocks(9)
• ethtool_mm_frag_size_add_to_min(9)
• ethtool_mm_frag_size_min_to_add(9)
• ethtool_get_ts_info_by_layer(9)
• ethtool_puts(9)
• ethtool_cpy(9)

Like, the whole friend group showed up to the party. 😭🔥

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Ngl bestie, that's the entire page — no warnings, no bugs section, no tricky caveats. Just a sweet lil formatter doing her thing. 🍓

And that's a wrap! This one lives in ./include/linux, dated October 2026, and it's all brought to you by the Kernel API Manual. Mwah, slay, periodt. 💖👑🌸