do_mem_probe(9)

💅 do_mem_probe(9)

okay so this is a page from the Kernel API Manual bestie, and we're about to get into it. buckle up 🎀

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✨ NAME ✨

do_mem_probe — the girl whose whole job is validating a memory region for PCMCIA use 🦋

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🌸 SYNOPSIS 🌸

int do_mem_probe (struct pcmcia_socket *s , u_long base , u_long num ,
int (*validate)(struct pcmcia_socket *s, struct resource *res, unsigned
int *value) , int (*fallback)(struct pcmcia_socket *s, struct resource
*res, unsigned int *value) );

like, yes, that's a lot of function pointer action in one signature, but she ate 💅

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🫶 ARGUMENTS 🫶

• s — the PCMCIA socket we're validating, main character energy 👑
• base — start address of the resource to check, iconic starting point ✨
• num — size of the resource to check, aka how much we're working with 📏
• validate — the validation function to use, ur first-string bestie for checking things 🔥
• fallback — the validation function to use if validate fails, the backup bestie who shows up when the plans fall through 😭

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💖 DESCRIPTION 💖

so do_mem_probe checks a memory region for use by the PCMCIA subsystem. no cap, that's the whole vibe check 🌈

the way it does this is honestly so smart: the area gets split up into sensible parts, and then each part is passed into the validate function. like, dividing the work? we love to see it 🧚

and here's the important bit — only if validate and fallback both fail does the area get marked as unavailable for use by the PCMCIA subsystem. both of them. no shortcuts 🙈

the function returns the size of the usable memory area, which is the payoff bestie, the little reward at the end 🍓

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⭐ SEE ALSO ⭐

• Kernel file ./drivers/pcmcia/rsrc_nonstatic.c — go read it, iykyk 💜
• do_validate_mem(9)
• inv_probe(9)
• validate_mem(9)
• validate_mem(9) — yes she's listed twice, and honestly? double the icon, double the slay 💀
• pcmcia_nonstatic_validate_mem(9)

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and that's the whole page!! this one comes to you from ./drivers/pcmcia, dated October 2026 — mwah, drink some water, and go validate a memory region responsibly 💅✨🎀