SBTSI_IOCTL_REG_XFER_CMD(9)

💅 SBTSI_IOCTL_REG_XFER_CMD

okay bestie, welcome to the Kernel API Manual entry for SBTSI_IOCTL_REG_XFER_CMD — yes that's a mouthful, yes you're gonna say it out loud once and then just point at it forever 🫶

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✨ Parameters ✨

• struct apml_tsi_xfer_msg — a pointer to the struct apml_tsi_xfer_msg that's gonna hold all the protocol info. that's it, that's the parameter. she's holding the whole vibe of the message 💅

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🦋 Description 🦋

so this is an IOCTL command for APML TSI messages and it's built on the generic _IOWR — iykyk, read and write energy 🔥

the IOCTL gives userspace access to the AMD sideband TSI register xfer protocol. no cap, that's the whole gig ✨

• 🌸 TSI protocol to read/write temperature sensor registers

like... it reads them, it writes them, it's giving temperature-sensor main character energy 👑

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🎀 SEE ALSO 🎀

• Kernel file ./include/uapi/misc/amd-apml.h
• SBRMI_IOCTL_MBOX_CMD(9)
• SBRMI_IOCTL_CPUID_CMD(9)
• SBRMI_IOCTL_MCAMSR_CMD(9)
• SBRMI_IOCTL_REG_XFER_CMD(9)

go read the whole friend group, they're all iconic fr fr 💜

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ngl bestie, if you're poking at registers through an IOCTL, double-check your struct before you send it — the kernel does not do vibes-based error correction 😭

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sign-off time 🧚 this page lives in the source spot ./include/uapi/misc, dated October 2026, and it's filed under SBTSI_IOCTL_REG_XFER_CMD(9). slay, go read your temperature sensors responsibly ⭐💖