vsc_tp_xfer(9)

💅 vsc_tp_xfer — the kernel API manual, but make it cute

okay so bestie, welcome to vsc_tp_xfer(9) from the Kernel API Manual — this is the little function that transfers data to firmware, and honestly? she's iconic for it. let's get into it 🎀

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✨ NAME ✨

vsc_tp_xfer — transfer data to firmware. that's it, that's the whole job, and she does it slayfully 💖

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🌸 SYNOPSIS 🌸

int vsc_tp_xfer (struct vsc_tp *tp , u8 cmd , const void *obuf , size_t
olen , void *ibuf , size_t ilen );

look at her. six whole parameters. main character energy fr fr 👑

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🦋 ARGUMENTS 🦋

• tp — the vsc_tp device handle. this is your girl, your device, the one you're talking to 🫶
• cmd — the command to be sent to the device. like a little text message, but for hardware 💌
• obuf — the tx buffer to be sent to the device. this is what you're sending out into the world ✨
• olen — the length of tx buffer. gotta know how much you're sending, no cap 📏
• ibuf — the rx buffer to receive from the device. the inbox. the reply. the "hey bestie I heard you" energy 💅
• ilen — the length of rx buffer. how much room the reply gets to take up 🌈

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⭐ RETURN ⭐

the length of received data in case of success, otherwise negative value 😭

so like — happy path gives you a number, sad path gives you a negative. check it. always check it. periodt 💀

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🔥 SEE ALSO 🔥

it's giving "and the rest of the squad" — go read these too:

• Kernel file ./drivers/misc/mei/vsc-tp.c
• vsc_tp_rom_xfer(9)
• vsc_tp_reset(9)
• vsc_tp_need_read(9)
• vsc_tp_register_event_cb(9)
• vsc_tp_intr_synchronize(9)
• vsc_tp_intr_enable(9)
• vsc_tp_intr_disable(9)

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and that's the whole page bestie, you ate that 🍓

sign-off szn: this little masterpiece lives in ./drivers/misc/mei, dated October 2026 — remember it fondly, mwah 💋🧚💜