STRUCT DMA_VEC(9)

struct dma_vec(9) 💖

Kernel API Manual, bestie — welcome to the struct dma_vec page, aka the tiny struct with main character energy. It’s literally two fields, and we’re gonna give them the respect they deserve. ✨

🌸 NAME 🌸

struct dma_vec - DMA vector

✨ SYNOPSIS ✨

Okay so the whole struct is right here, no cap:

       struct dma_vec {
           dma_addr_t addr;
           size_t len;
        };

🫶 Members 🫶

• addr — Bus address of the start of the vector. Like, where this vector begins on the bus, periodt.
• len — Length in bytes of the DMA vector. The byte count, bestie — that’s the vibe.

💜 SEE ALSO 💜

Kernel file ./include/linux/dmaengine.h is the home base, and these are the linked lore drops:

• dma_cookie_t(9)
• enum dma_status(9)
• enum dma_transaction_type(9)
• enum dma_transfer_direction(9)
• struct data_chunk(9)
• struct dma_interleaved_template(9)
• enum dma_ctrl_flags(9)
• enum sum_check_bits(9)
• enum sum_check_flags(9)
• enum dma_desc_metadata_mode(9)
• struct dma_chan_percpu(9)
• struct dma_router(9)
• struct dma_chan(9)
• struct dma_chan_dev(9)
• enum dma_slave_buswidth(9)
• struct dma_slave_config(9)
• enum dma_residue_granularity(9)
• struct dma_slave_caps(9)
• dma_filter_fn(9)
• struct dma_async_tx_descriptor(9)
• struct dma_tx_state(9)
• enum dmaengine_alignment(9)
• struct dma_slave_map(9)
• struct dma_filter(9)
• struct dma_device(9)
• dmaengine_prep_peripheral_dma_vec(9)
• dmaengine_prep_config_sg_safe(9)
• dmaengine_prep_config_single_safe(9)
• dmaengine_prep_dma_memset(9)
• dmaengine_terminate_all(9)
• dmaengine_terminate_async(9)
• dmaengine_synchronize(9)
• dmaengine_terminate_sync(9)
• dma_async_issue_pending(9)
• dma_async_is_tx_complete(9)
• dma_async_is_complete(9)

🎀 That’s the page, bestie! Source: ./include/linux · date: October 2026 · title: struct dma_vec(9) — mwah, bye! 💅✨