fsl_dma_alloc_descriptor(9)

🌸 NAME 🌸

okay so this is the fsl_dma_alloc_descriptor(9) page from the Kernel API Manual, and it's literally the function that allocates a descriptor from the channel's DMA pool. bestie, that's the whole vibe: grab a descriptor, from the pool, for the channel. no cap 💅

✨ SYNOPSIS ✨

struct fsl_desc_sw * fsl_dma_alloc_descriptor (struct fsldma_chan *chan
);

💖 ARGUMENTS 💖

• chan — the Freescale DMA channel. that's the channel we're pulling the descriptor from, periodt 🎀

🦋 DESCRIPTION 🦋

Return: the descriptor that was allocated ✨. if it failed, you get NULL 😭. that's it, that's the whole return story, iykyk.

🔥 SEE ALSO 🔥

the kernel file is right here: ./drivers/dma/fsldma.c 🫶 and these are the related pages you might wanna peek at:

• fsl_chan_set_src_loop_size(9)
• fsl_chan_set_dst_loop_size(9)
• fsl_chan_set_request_count(9)
• fsl_chan_toggle_ext_pause(9)
• fsl_chan_toggle_ext_start(9)
• fsl_dma_free_descriptor(9)
• fsldma_clean_completed_descriptor(9)
• fsldma_run_tx_complete_actions(9)
• fsldma_clean_running_descriptor(9)
• fsl_chan_xfer_ld_queue(9)
• fsldma_cleanup_descriptors(9)
• fsl_dma_alloc_chan_resources(9)
• fsldma_free_desc_list(9)
• fsl_dma_free_chan_resources(9)
• fsl_dma_memcpy_issue_pending(9)
• fsl_tx_status(9)

kisses and sparkles 🧚‍♀️💖 — this page comes from the ./drivers/dma source corner and is stamped October 2026. go be iconic with your descriptors 🌈✨