cdns_i2c_slave_isr(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cdns_i2c_slave_isr(9) — a Kernel API Manual moment ✨

okay so bestie, we're in the Kernel API Manual and today's main character is cdns_i2c_slave_isr — the interrupt handler for the I2C device when it's out here living its slave role life. it's giving background support icon, honestly 🎀

🌸 NAME 🌸

cdns_i2c_slave_isr — the interrupt handler for the I2C device in slave role 🦋

✨ SYNOPSIS ✨

irqreturn_t cdns_i2c_slave_isr (void *ptr );

🫶 ARGUMENTS 🫶

  • ptr — a pointer to the I2C device's private data. that's it, that's the whole vibe 💖

💅 DESCRIPTION 💅

so what this function actually does: it handles the data interrupt and the transfer complete interrupt of the I2C device in slave role. two interrupts, one handler, no cap 🔥

like, both of those interrupt situations land here and this function is the one catching them. she's the designated responder, periodt 👑

⭐ RETURN ⭐

IRQ_HANDLED — always. every single time. no maybe, no sometimes, no "we'll see" 🙈 it's IRQ_HANDLED and that's that 💯

🌈 SEE ALSO 🌈

bestie there is a whole friend group here, and they're all family. the kernel file lives at ./drivers/i2c/busses/i2c-cadence.c and honestly the whole cast shows up:

like, go read them, they're all iconic in their own way 🧚

ngl if you only read one thing here, just remember: ptr in, IRQ_HANDLED out, no drama 💀

and that's the page bestie!! this one lives down in ./drivers/i2c/busses, it's dated October 2026, and it's filed under cdns_i2c_slave_isr(9) if you ever need to find it again. slay, go handle those interrupts 💜🍓

📦 where this page comes from