hdm_poison_channel(9)

💅 hdm_poison_channel(9) 💅

okay so this is a page from the Kernel API Manual bestie, and it's about one very specific little function that does a very specific little thing. no cap, it's a short one — but every detail matters, so let's go ✨

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🌸 NAME 🌸

hdm_poison_channel — mark buffers of this channel as invalid 🫶

like, it's giving "these buffers? no longer valid, sweeetie" energy 💀

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✨ SYNOPSIS ✨

int hdm_poison_channel (struct most_interface *iface , int channel );

that's the whole signature, bestie — two args, returns an int, iconic 👑

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🎀 ARGUMENTS 🎀

• iface — pointer to the interface 🦋 (yes, it's a struct most_interface *, keep up)
• channel — channel ID 🔥 (just an int, she's simple like that)

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💜 DESCRIPTION 💜

okay so here's what actually happens when you call her:

This unlinks all URBs submitted to the HCD, calls the associated completion function of the core, and removes them from the list. 💅

read that again, because it's honestly kind of a lot — unlink all the URBs, call the associated completion function of the core, remove them from the list. three whole steps, one function call, main character energy fr fr 🧚

Returns 0 on success or error code otherwise. 🍓

⭐ heads up bestie: 0 means slay, anything else means something went sideways — so like, actually check the return value, okay? don't just ignore it 🙈

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/most/most_usb.c 👑
• struct most_dci_obj(9)
• struct most_dev(9)
• drci_rd_reg(9)
• drci_wr_reg(9)
• get_stream_frame_size(9)
• hdm_add_padding(9)
• hdm_remove_padding(9)
• hdm_write_completion(9)
• hdm_read_completion(9)
• hdm_enqueue(9)
• hdm_configure_channel(9)
• hdm_request_netinfo(9)
• link_stat_timer_handler(9)
• wq_netinfo(9)
• wq_clear_halt(9)
• hdm_probe(9)
• hdm_disconnect(9)

that's the whole friend group, go say hi to all of them 😭💖

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and that's the page!! 🦋 this little beauty lives in ./drivers/most, and she was dated October 2026 — so like, mark your calendar bestie, she's from the future 💀✨ mwah, go poison some channels responsibly 🎀💜