w1_reset_resume_command(9)

📦 version 7.3.1, in nixpkgs unstable

💅 w1_reset_resume_command(9) — the Kernel API Manual glow-up 🎀

okay bestie, so this one's from the Kernel API Manual, and it's literally called w1_reset_resume_command ✨ — aka "resume instead of another match ROM." she's a little shortcut queen and we stan 🫶

✨ SYNOPSIS ✨

int w1_reset_resume_command (struct w1_master *dev );

🌸 ARGUMENTS 🌸

  • dev — the master device, the main character of this whole operation 👑

💖 DESCRIPTION 💖

okay so picture this: you've got a workflow goin' with one slave amongst many, and it needs several successive commands with a reset between each one 😭 this function is basically the same vibe as doing a reset and then a match ROM for the last matched ROM — except it's giving efficiency 💅

the glow-up here is that the matched ROM step gets skipped in favor of the resume command. no cap. the only catch? the slave must support that command, obviously. iykyk 🙈

and listen — if the bus has only one slave, traditionally the match ROM is skipped entirely and a "SKIP ROM" gets done instead, for efficiency reasons ✨ it's just good manners. but on multi-slave busses? yeah that trick doesn't work, of course 💀 but the resume command is literally the next best thing, and honestly she ate 🔥

⚠️ real talk: the w1 master lock must be held when you call this. not optional, bestie. hold the lock or it's not gonna be cute 😭

🦋 SEE ALSO 🦋

check out the kernel file ./drivers/w1/w1_io.c and the whole squad of friends:

🌸 that's the whole page, bestie! sourced straight from ./drivers/w1, dated October 2026 — go forth and resume with confidence 💜🧚⭐

📦 where this page comes from