ssh_ptl_shou...p_nak_packet(9)

📦 version 7.3.1, in nixpkgs unstable

💅 ssh_ptl_should_drop_nak_packet(9) — from the Kernel API Manual, bestie ✨

okay so picture this: it's a kernel function, it lives in the Kernel API Manual, and its whole personality is chaos for the sake of science. Let's get into it 🫶

🌸 NAME 🌸

ssh_ptl_should_drop_nak_packet — literally the error injection hook that drops NAK packets. no cap, that's the whole job 💅

✨ SYNOPSIS ✨

bool ssh_ptl_should_drop_nak_packet (void );

she takes nothing, she returns a bool, she's booked and busy 🎀

🦋 ARGUMENTS 🦋

  • void — no arguments. zero. nada. the void is the vibe here 💀

🔥 DESCRIPTION 🔥

okay so here's the tea: this hook is useful to test/force automated (timeout-based) re-transmit by the EC. like, you're basically poking the EC with a stick to see if it notices when stuff goes missing 😭

specifically, it's about packets that have not reached the driver completely/with valid checksums. those ones. the messy ones 🙈

⚠️ real talk though — it's only useful in combination with receival of (injected) bad data. don't come for her with your clean, well-behaved packets, she has nothing to say to you 💀

👑 SEE ALSO 👑

the kernel file herself, in all her glory:

./drivers/platform/surface/aggregator/ssh_packet_layer.c

and her whole friend group, icons only 🌈:

and that's the whole page, bestie 🫶 this legend comes from ./drivers/platform/surface/agg... — dated October 2026 🍓 go forth and drop those NAK packets 💜

📦 where this page comes from