pcmcia_release_window(9)

💅 pcmcia_release_window (kernel API manual, bestie edition)

Okay so real talk — you're in the pcmcia_release_window(9) page from the Kernel API Manual, and ngl this one's a shortie but a goodie. It's the cleanup era of the PCMCIA lifecycle and honestly? We love a function that knows how to let go. 🎀

✨ NAME ✨

pcmcia_release_window — release reserved iomem for PCMCIA devices 🫶

✨ SYNOPSIS ✨

int pcmcia_release_window (struct pcmcia_device *p_dev , struct resource
*res );

✨ ARGUMENTS ✨

• p_dev — the pcmcia device, obvs. your main character. 👑
• res — the iomem resource you're about to release. like handing back the aux cord at the end of the night. 🎧

✨ DESCRIPTION ✨

So pcmcia_release_window releases struct resource *res — and here's the tea — that res has to be something you previously reserved by calling pcmcia_request_window. It's giving "you can't return something you never borrowed." 💀

That's literally it. Short, sweet, iconic. No cap. ✨

✨ SEE ALSO ✨

Kernel file ./drivers/pcmcia/pcmcia_resource.c, plus the whole friend group:

• release_io_space(9)
• alloc_io_space(9)
• pcmcia_map_mem_page(9)
• pcmcia_fixup_iowidth(9)
• pcmcia_fixup_vpp(9)
• pcmcia_release_configuration(9)
• pcmcia_release_io(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)

Bestie, this page lives in ./drivers/pcmcia and it was dated October 2026 — that's the whole sign-off, mwah. 💋 Go free that window, you absolute legend. 🦋🌸