dma_can_mmap(9)

okay so this is the dma_can_mmap(9) page from the Kernel API Manual, and it's literally a vibe check for DMA mmap support 💅✨

🌸 NAME 🌸

dma_can_mmap — check if a given device supports dma_mmap_*

🦋 SYNOPSIS 🦋

bool dma_can_mmap (struct device *dev );

🎀 ARGUMENTS 🎀

• dev — device to check ✨

💖 DESCRIPTION 💖

Returns true if dev supports dma_mmap_coherent and dma_mmap_attrs to map DMA allocations to userspace. That's the whole tea, bestie — it's giving "can this device do the mmap thing?" realness 🫶

🌈 SEE ALSO 🌈

Kernel file ./kernel/dma/mapping.c and also these besties:

• dmam_free_coherent(9)
• dmam_alloc_attrs(9)
• dma_map_sg_attrs(9)
• dma_map_sgtable(9)
• dma_need_unmap(9)
• dma_mmap_attrs(9)
• dma_addressing_limited(9)

xoxo bestie, this one's from ./kernel/dma, dated October 2026, and it's the dma_can_mmap(9) page — bye and slay 🎀💜