atc_chan_is_enabled(9)

💅 atc_chan_is_enabled — Kernel API Manual, section 9

okay bestie, welcome to the group chat 💖 this one's a lil baby page but she's important, so let's get into it. we're in the Kernel API Manual, section 9, and the star of the show is atc_chan_is_enabled. the way that name literally tells you everything — it's giving "I check things" energy. icon behavior only ✨

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🌸 NAME 🌸

atc_chan_is_enabled — test if given channel is enabled 🫶

like, that's her whole job. she checks. she reports. she does not elaborate 💅

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⭐ SYNOPSIS ⭐

int atc_chan_is_enabled (struct at_dma_chan *atchan );

yep, that's it. she takes one struct at_dma_chan *atchan and hands you back an int. short and sweet, no cap 🎀 (and yes, keep that space before the closing paren exactly as written — it's part of the vibe, do not touch it 😭)

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🦋 ARGUMENTS 🦋

• atchan — the channel we want to test status on. literally just hand her the channel and she'll tell you what's up 💜

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🌈 SEE ALSO 🌈

so this is the part where she name-drops her entire friend group — and honestly? the guest list ate 👑

Kernel file ./drivers/dma/at_hdmac.c

and then, in no particular order (well, okay, in this particular order):

• struct atdma_sg(9)
• struct at_desc(9)
• enum atc_status(9)
• struct at_dma_chan(9)
• struct at_dma(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_handle_error(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)

that's 23 besties plus the source file, and they all showed up to the function's birthday party 🎂 fr fr, go read them if you want the full lore. iykyk 🧚

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lowkey a reminder: this page is just the status check. she tells you enabled or not, she does not turn anything on or off. don't be weird about it 🙈

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and that's the whole page, bestie — short, iconic, main character energy, no notes 💀✨

source file directory: ./drivers/dma · dated: October 2026

mwah, love u, go read the rest of the at_hdmac lore 🍓💖👑