STRUCT MMC_TEST_CARD(9)

🎀 NAME 🎀

struct mmc_test_card — ok so this is literally just test information, that's the whole vibe bestie ✨

💅 SYNOPSIS 💅

no cap, here's the whole struct, character for character, don't @ me:

struct mmc_test_card {
    struct mmc_card *card;
    u8 scratch[BUFFER_SIZE];
  #ifdef CONFIG_HIGHMEM;
    struct page     *highmem;
  #endif;
    struct mmc_test_area            area;
    struct mmc_test_general_result  *gr;
    u8 buffer[];
};

like… she's giving main character energy, she's giving flexible array member at the end 🫶

🦋 Members 🦋

• card — the card under test. the lil guy we're putting through it fr fr 💀
• scratch — transfer buffer. yes queen, do your scratch work 🌸
• highmem — buffer for highmem tests. only shows up when CONFIG_HIGHMEM is in the building, iykyk 👑
• area — information for performance tests. this is where the speedrun data lives 🔥
• gr — pointer to results of current testcase. like, pointer, get it? ok I'll stop 🙈
• buffer — transfer buffer. another one. we love a transfer buffer, we stay hydrated 💧

🌈 SEE ALSO 🌈

Kernel file ./drivers/mmc/core/mmc_test.c — and honestly the whole friend group is here:

• struct mmc_test_pages(9)
• struct mmc_test_mem(9)
• struct mmc_test_area(9)
• struct mmc_test_transfer_result(9)
• struct mmc_test_general_result(9)
• struct mmc_test_dbgfs_file(9)

go read them all, bestie, it's giving study group 📚✨

ngl this whole thing lives in ./drivers/mmc/core and the page is dated October 2026 — that's the sign-off, mwah, periodt 💖 🎀 🧚