fsl_tx_status(9)

okay so this is fsl_tx_status(9), straight outta the Kernel API Manual, and we’re getting into it bestie 💖✨

💅 NAME

fsl_tx_status — Determine the DMA status.

✨ SYNOPSIS

enum dma_status fsl_tx_status (struct dma_chan *dchan , dma_cookie_t
cookie , struct dma_tx_state *txstate );

🎀 ARGUMENTS

okay so the page is giving absolutely zero lore for these three, and I’m not gonna invent it. It literally says -- undescribed -- for each one, periodt 💀

• dchan — -- undescribed -- (the page is gatekeeping, not me 🙈)
• cookie — -- undescribed -- (same vibe, no tea spilled)
• txstate — -- undescribed -- (still undescribed, bestie; that’s the whole note)

🦋 SEE ALSO

the kernel file is ./drivers/dma/fsldma.c, and these are the linked homies:

• 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)
• 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)

Sign-off: this page lives under ./drivers/dma, dated October 2026, and it’s literally fsl_tx_status(9) 💅✨🫶