pcmcia_relea...onfiguration(9)

💅 NAME 💅

pcmcia_release_configuration — physically disable a PCMCIA device, bestie ✨

So like, this is the function you call when a PCMCIA device has fully left the chat and you need to actually cut the power to it. Physically. Not metaphorically. 🫶

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🌸 SYNOPSIS 🌸

int pcmcia_release_configuration (struct pcmcia_device *p_dev );

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🎀 ARGUMENTS 🎀

• p_dev — the pcmcia device in question, aka the whole entire point of this function 💖

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✨ DESCRIPTION ✨

okay so pcmcia_release_configuration is the literal 1:1 counterpart to pcmcia_enable_device, like they're twin flames, opposites, the whole thing 🔥

Here's the vibe check: if a PCMCIA device is no longer used by any driver — nobody's driving it, it's just sitting there — then this function does three iconic things:

• the Vpp voltage is set to 0 ⚡ (power? gone. zero. nada.)
• IRQs will no longer be generated 💀 (no more interrupts, she's quiet now)
• I/O ranges will be disabled 🚫 (all closed off, no cap)

⚠️ BUT. And this is the important part, bestie, do not skip this. Because pcmcia_release_io and pcmcia_release_window still need to be called, device drivers are expected to call pcmcia_disable_device instead. Periodt. Don't call this one directly and think you're done, because you are NOT done 🙈

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🦋 SEE ALSO 🦋

Kernel file ./drivers/pcmcia/pcmcia_resource.c — go read it, iykyk 👑

• release_io_space(9)
• alloc_io_space(9)
• pcmcia_map_mem_page(9)
• pcmcia_fixup_iowidth(9)
• pcmcia_fixup_vpp(9)
• pcmcia_release_io(9)
• pcmcia_release_window(9)
• pcmcia_enable_device(9)
• pcmcia_request_io(9)
• pcmcia_request_irq(9)
• pcmcia_setup_isa_irq(9)
• pcmcia_setup_irq(9)
• pcmcia_request_window(9)
• pcmcia_disable_device(9)

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and that's the whole page, you ate that 💅✨ this little writeup lives in ./drivers/pcmcia and is dated October 2026 — go off, queen 👑🎀