zynqmp_pm_release_node(9)

📦 version 7.3.1, in nixpkgs unstable

💅 zynqmp_pm_release_node — the Kernel API Manual, bestie edition ✨

okay so this lil page lives in the Kernel API Manual (section 9, kernel-land, very demure) and it's all about zynqmp_pm_release_node. it's short, it's sweet, it's giving "polite handback of borrowed stuff" 🎀 let's get into it.

🦋 NAME

zynqmp_pm_release_node — Release a node 🌸

like, giving it back. returning what you borrowed. the un-borrowing, if you will 💅

✨ SYNOPSIS

int zynqmp_pm_release_node (const u32 node );

returns an int, takes one const u32 called node. that's the whole vibe check, no cap 🔥

🎀 ARGUMENTS

  • node — Node ID of the slave ⭐

that's it. one argument. one ID. she's low maintenance, we love her 🫶

💖 DESCRIPTION

so here's the tea, bestie ☕ — this function is what a master calls to inform the firmware that the master has released the node. think of it like texting the group chat "okay i'm done with the car keys, they're back on the hook" 🚗💨

⚠️ but listen — this is the important part and i need you to hear me: once released, the master must not use that node without re-request. like, at ALL. no sneaky little peek, no "just five more minutes". if you want it back you go through the whole request flow again, periodt 💀

🌈 RETURN

Returns status, either success or error+reason 😭

so yeah — check it. if it's an error it comes with a reason, which is honestly so considerate of it 🧚

👑 SEE ALSO

buckle up buttercup, this list is long and every single one of these is invited to the party 🎉 the kernel file in question is ./drivers/firmware/xilinx/zynqmp.c, and then we've got:

that's the whole page, bestie, no skips, no cuts 🌟

mwah 💋 — this cutie came out of ./drivers/firmware/xilinx in October 2026, and honestly? she ate. go forth and release your nodes responsibly 🦋💜

📦 where this page comes from