mei_dma_ring_empty_slots(9)

💖 mei_dma_ring_empty_slots — a Kernel API Manual moment 💖

okay so bestie, we're in the Kernel API Manual today and the star of the show is mei_dma_ring_empty_slots(9). she's a little function, she counts things, she's lowkey iconic. let's get into it ✨

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🌸 NAME 🌸

mei_dma_ring_empty_slots — literally calculates the number of empty slots in the dma ring 🎀

ngl the original page spells it "calaculate" and we are simply not gatekeeping that typo, we're just moving on 💅

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🦋 SYNOPSIS 🦋

u32 mei_dma_ring_empty_slots (struct mei_device *dev );

that's it. that's the whole call. one argument, one u32 coming back at you 🫶

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✨ ARGUMENTS ✨

• dev — a mei_device. that's the whole description. she's a mei_device, that's her job 🎀

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👑 RETURN 👑

returns the number of empty slots. that's the answer, that's the assignment, periodt 💅

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🔥 SEE ALSO 🔥

the kernel file over at ./drivers/misc/mei/dma-ring.c and honestly the whole friend group:

• mei_dmam_dscr_alloc(9)
• mei_dmam_dscr_free(9)
• mei_dmam_ring_free(9)
• mei_dmam_ring_alloc(9)
• mei_dma_ring_is_allocated(9)
• mei_dma_ring_reset(9)
• mei_dma_copy_from(9)
• mei_dma_copy_to(9)
• mei_dma_ring_read(9)
• mei_dma_ring_write(9)

go read them all, iykyk 🌈

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and that's the page, bestie 🫶 this gem comes to you from ./drivers/misc/mei, dated October 2026, living its best life under the Kernel API Manual banner — slay, no cap 💜🎀✨