cdx_mmap_resource(9)

💅 cdx_mmap_resource(9) — Kernel API Manual

Okay bestie, gather round: this is the <pink>cdx_mmap_resource</pink> page from the <purple>Kernel API Manual</purple>, and it’s literally about mapping a CDX resource into user memory space. Let’s get into it 🫶

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✨ NAME ✨

cdx_mmap_resource — map a CDX resource into user memory space 🗺️

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🌸 SYNOPSIS 🌸

int cdx_mmap_resource (struct file *fp , struct kobject *kobj , const
       struct bin_attribute *attr , struct vm_area_struct *vma );

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🎀 ARGUMENTS 🎀

• fp — file pointer. Not used in this function, but required where this API is registered as a callback. She’s there for the callback vibe, not the work 💅
• kobj — kobject for mapping.
• attr — struct bin_attribute for the file being mapped.
• vma — struct vm_area_struct passed into the mmap.

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🦋 DESCRIPTION 🦋

Use the regular CDX mapping routines to map a CDX resource into userspace. That’s the whole assignment, no cap ✨

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🔥 RETURN 🔥

true on success, false otherwise. Periodt 💖

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👑 SEE ALSO 👑

Kernel file ./drivers/cdx/cdx.c is the spot to peek at, and the whole squad is: cdx_dev_reset(9), reset_cdx_device(9), cdx_unregister_device(9), cdx_match_one_device(9), cdx_match_id(9), cdx_bus_match(9) 🌈

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— from ./drivers/cdx (that’s the source, bestie), dated October 2026, mwah 💋🎀