fsl_chan_set_src_loop_size(9)

fsl_chan_set_src_loop_size(9) 💅

omg hi bestie 💖 this is the fsl_chan_set_src_loop_size(9) page from the Kernel API Manual — manual name folded in right here like a little bow 🎀. It's the source-address-hold-transfer-size setter, and yes, we're gonna get into it.

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✨ NAME ✨

fsl_chan_set_src_loop_size — Set source address hold transfer size 💫

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🌸 SYNOPSIS 🌸

void fsl_chan_set_src_loop_size (struct fsldma_chan *chan , int size );

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🎀 ARGUMENTS 🎀

• chan — the Freescale DMA channel, aka the main character you're setting up 💅
• size — the address loop size; 0 for disable loop. periodt.

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💖 DESCRIPTION 💖

okay so this function sets the source address hold transfer size. no cap. The source address hold — or loop transfer size — is when the DMA transfer data from source address (SA). If the loop size is 4, the DMA will read data from SA, SA + 1, SA + 2, SA + 3, then loop back to SA, SA + 1 ... and so on. it's giving tiny repeating pattern, and honestly? iconic 🔁✨

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🦋 SEE ALSO 🦋

Kernel file ./drivers/dma/fsldma.c is the home base 🏠 — also go peek at:

• 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)
• fsl_dma_alloc_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)

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that's the whole page, bestie 🫶 source/version: ./drivers/dma · date: October 2026 · page: fsl_chan_set_src_loop_size(9) ✨ mwah 💋