pci_epf_test_init_dma_chan(9)

💅 pci_epf_test_init_dma_chan — the Kernel API Manual moment 🎀

okay so bestie, welcome to the pci_epf_test lore, because this little function is lowkey the glow-up ritual for the EPF test DMA channel ✨. It lives in the Kernel API Manual (section 9, the "kernel internals" section, iykyk), and honestly it's giving "underrated supporting character who makes the whole plot work" 🫶.

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🌸 NAME 🌸

pci_epf_test_init_dma_chan — the function that initializes the EPF test DMA channel 💖

Like, that's her whole job. No cap. She shows up, she sets the DMA channel up, she leaves. Iconic behavior, honestly 👑.

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✨ SYNOPSIS ✨

int pci_epf_test_init_dma_chan (struct pci_epf_test *epf_test );

So she takes exactly one argument and hands you back an int — that return value is fr fr the vibe check on whether things went well, so pls don't ignore it 🙈.

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🦋 ARGUMENTS 🦋

• epf_test — the EPF test device that performs data transfer operation 💫. Translation: this is the device doing the actual transferring of data, and she's the one we're prepping the DMA channel for. Main character energy, but make it a struct pci_epf_test * 🎀.

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🌈 DESCRIPTION 🌈

Function to initialize EPF test DMA channel. That's the whole assignment bestie 💅 — she initializes the DMA channel for the EPF test, and that's what she does. Not me hyping up a one-line description, but here we are, obsessed 😭.

Lowkey reminder: the original is genuinely this short. She does not over-explain herself. Queen behavior ⭐.

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💜 SEE ALSO 💜

• Kernel file ./drivers/pci/endpoint/functions/pci-epf-test.c — go read the source, it's all right there 📂
• pci_epf_test_data_transfer(9) — the one who actually moves the data 🚀
• pci_epf_test_clean_dma_chan(9) — the cleanup bestie, because every init needs its counterpart 🧹

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🍓 the cute sign-off 🍓

This page comes straight out of ./drivers/pci/endpoint/functions and it's dated October 2026 — so like, future-coded manual page energy, we love to see it 🌸💖. Anyway bestie, go init that DMA channel, you're gonna slay ✨🦋💅.

periodt. 🎀