STRUCT TPM_I2C_CR50_PRIV_DATA(9)

📦 version 7.3.1, in nixpkgs unstable

✨ struct tpm_i2c_cr50_priv_data — Driver private data ✨

okay bestie, welcome to the kernel API manual for struct tpm_i2c_cr50_priv_data(9) — yes that's the whole title, we're being thorough today 💅 this is the driver private data struct and it's lowkey iconic, ngl.

🎀 SYNOPSIS 🎀

struct tpm_i2c_cr50_priv_data {
    int irq;
    struct completion tpm_ready;
    u8 buf[TPM_CR50_MAX_BUFSIZE];
 };

look at her. three fields. no notes. 🫶

🌸 Members 🌸

  • irq — the irq number this chip is using. and here's the tea: if irq <= 0, then a fixed timeout gets used instead of waiting for an irq. so like, no irq, no problem, we just vibe on a timer ⏰
  • tpm_ready — a struct that the irq handler uses to signal R/W readiness. she's the little messenger going "ok we're ready, we're ready" 📣
  • buf — the buffer used for i2c writes, and the i2c address gets prepended to the content. so the address is literally the main character at the front of the buffer 👑

🦋 Description 🦋

private driver struct used by kernel threads and interrupt context. like, she lives in both worlds. dual citizenship. main character energy fr fr ✨

💖 SEE ALSO 💖

kernel file ./drivers/char/tpm/tpm_tis_i2c_cr50.c — go read it, iykyk 📖

and the whole friend group:

and that's the whole page bestie, no cap 🧚 this one came from ./drivers/char/tpm, dated October 2026, and she's officially filed under struct tpm_...50_priv_data(9) — slay, periodt, go read some kernel source 💜⭐

📦 where this page comes from