edac_get_dimm(9)

💅 edac_get_dimm(9) 💅

okay bestie, welcome to edac_get_dimm(9) — straight out of the Kernel API Manual, no cap. this little icon does exactly one thing and does it slay: it gets you DIMM info from a memory controller, and you point at the DIMM you want using a [layer0,layer1,layer2] position. that's the whole vibe. 🎀

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✨ NAME ✨

edac_get_dimm — Get DIMM info from a memory controller given by [layer0,layer1,layer2] position 🫶

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🌸 SYNOPSIS 🌸

struct dimm_info * edac_get_dimm (struct mem_ctl_info *mci , int layer0
, int layer1 , int layer2 );

like, look at that signature. it's giving "three coordinates, one DIMM". 💖

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🦋 ARGUMENTS 🦋

• mci — the MC descriptor, a struct mem_ctl_info. this is your main character. 👑
• layer0 — layer0 position.
• layer1 — layer1 position. Unused if n_layers < 2 — so don't stress about it when you're running a one-layer setup, it literally doesn't get read. 🙈
• layer2 — layer2 position. Unused if n_layers < 3 — same deal, only 3-layer configs care. 💀

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🌈 DESCRIPTION 🌈

the way this function works is honestly so clean, it's basically array indexing with extra steps (affectionate). here's the tea per layer count: 🍓

• For 1 layer, this function returns "dimms[layer0]";
• For 2 layers, this function is similar to allocating a two-dimensional array and returning "dimms[layer0][layer1]";
• For 3 layers, this function is similar to allocating a tri-dimensional array and returning "dimms[layer0][layer1][layer2]";

so like… one layer? one index. two layers? two indices. three layers? three indices. it's consistent, it's predictable, it's iconic. ⭐

highkey remember: the extra layer1 / layer2 args are just chillin' unused when n_layers is smaller than 2 or 3 respectively — no error, no drama, they just vibe. 💅

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🔥 SEE ALSO 🔥

Kernel file ./include/linux/edac.h plus the whole friend group: enum dev_type(9), enum hw_event_mc_err_type(9), enum mem_type(9), enum edac_type(9), enum scrub_type(9), enum edac_mc_layer_type(9), struct edac_mc_layer(9), struct rank_info(9), struct edac_raw_error_desc(9), struct edac_scrub_ops(9), struct edac_ecs_ops(9), struct edac_mem_repair_ops(9). go say hi, they're all so nice. 🧚

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aaaand that's the page! 🎀 this one lives in ./include/linux and it's dated October 2026 — so yes, it's future-proof and fabulous. mwah, go read your DIMMs bestie 💜✨