atc_handle_error(9)

💅 atc_handle_error — the Kernel API Manual tea

okay so bestie, welcome to atc_handle_error(9) — the little function that handles errors reported by the DMA controller ✨ like it's literally the cleanup crew of the kernel and honestly? iconic.

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🌸 NAME 🌸

atc_handle_error — handle errors reported by DMA controller 🫶

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✨ SYNOPSIS ✨

void atc_handle_error (struct at_dma_chan *atchan , unsigned int i );

no cap, that's the whole signature — she takes two things, she returns void, she minds her business 💅

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🎀 ARGUMENTS 🎀

• atchan — the channel where the error occurs 😭 like, the exact channel that's going through it right now.
• i — the channel index 🔢 the number, the digits, the ID.

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🦋 SEE ALSO 🦋

fr fr go read these next, they're the whole friend group 👑

• the kernel file ./drivers/dma/at_hdmac.c 📁 (yes, that's the source of truth, periodt)
• struct atdma_sg(9)
• struct at_desc(9)
• enum atc_status(9)
• struct at_dma_chan(9)
• struct at_dma(9)
• atc_chan_is_enabled(9)
• atc_chan_is_paused(9)
• atc_chan_is_cyclic(9)
• set_lli_eol(9)
• struct at_dma_platform_data(9)
• struct at_dma_slave(9)
• atc_dostart(9)
• atc_calc_bytes_left(9)
• atc_get_llis_residue(9)
• atc_get_residue(9)
• atc_prep_dma_interleaved(9)
• atc_prep_dma_memcpy(9)
• atc_prep_dma_memset(9)
• atc_prep_slave_sg(9)
• atc_prep_dma_cyclic(9)
• atc_tx_status(9)
• atc_alloc_chan_resources(9)
• atc_free_chan_resources(9)
• at_dma_off(9)

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bestie reminder 🫶 every one of those refs is listed exactly as the page gives them — iykyk, don't skip a single (9) or the vibe check fails 💀

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okay that's the whole page, and it ships straight out of ./drivers/dma, dated October 2026 🌈⭐ — like she's literally stamped and dated and ready to slay 💅✨