gpmc_probe_generic_child(9)

💅 gpmc_probe_generic_child — the Kernel API Manual, bestie ✨

okay so this is a section 9 kernel API page, from the Kernel API Manual, and it's literally about the GPMC driver. yes we're in the kernel, yes it's giving embedded-core realness, and yes i'm gonna walk you through it 🫶

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✨ NAME ✨

gpmc_probe_generic_child — configures the gpmc for a child device 💫

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🌸 SYNOPSIS 🌸

int gpmc_probe_generic_child (struct platform_device *pdev , struct
       device_node *child );

that's the whole signature, no cap. two pointers in, an int out 🎀

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🦋 ARGUMENTS 🦋

• pdev — pointer to gpmc platform device. like, the parent energy 👑
• child — pointer to device-tree node for child device. the main character in question 🌟

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💖 DESCRIPTION 💖

so what does it actually do? it allocates and configures a GPMC chip-select for a child device. that's it, that's the whole vibe ✨

and then it reports back:

• returns 0 on success — slay, we ate 💅
• returns the appropriate negative error code on failure — not slay, but at least it tells you why 😭

ngl, if you get a negative number back, that's not a vibe — that's an error code, and you should go read it properly 🙈

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🔥 SEE ALSO 🔥

the kernel file itself lives at ./drivers/memory/omap-gpmc.c — go drink from the source bestie 🍓

and the whole friend group:

• gpmc_get_clk_period(9)
• get_gpmc_timing_reg(9)
• set_gpmc_timing_reg(9)
• gpmc_calc_waitmonitoring_divider(9)
• gpmc_calc_divider(9)
• gpmc_cs_set_timings(9)
• gpmc_configure(9)
• gpmc_omap_get_nand_ops(9)
• gpmc_cs_program_settings(9)
• gpmc_cs_remap(9)
• gpmc_read_settings_dt(9)

literally the entire group chat, all tagged, all iconic 👑

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and that's the page!! 🧚 source: ./drivers/memory, dated October 2026 — so mark your calendar, screenshot it, frame it, this manpage said see you then 💜🎀✨