recv_ishtp_cl_msg_dma(9)

📦 version 7.3.1, in nixpkgs unstable

💖 recv_ishtp_cl_msg_dma(9) 💖

okay so bestie, this is a page straight out of the Kernel API Manual — like, the whole recv_ishtp_cl_msg_dma(9) situation — and honestly? it's giving "small function, big responsibilities." let's get into it 🫶

✨ NAME ✨

recv_ishtp_cl_msg_dma — receive client message 🎀

like, that's literally the whole gig. it receives a client message. iconic behavior.

🌸 SYNOPSIS 🌸

void recv_ishtp_cl_msg_dma (struct ishtp_device *dev , void *msg ,
struct dma_xfer_hbm *hbm );

no cap, she takes three args and returns void — no little return value to obsess over, she just does the thing 💅

🦋 ARGUMENTS 🦋

  • dev — the ISHTP device instance 💜 like, which device are we talking to? this one. right here.
  • msg — message pointer ✨ the actual message, pointing at stuff, being all pointer-y about it.
  • hbm — hbm buffer 🍓 the buffer. it's hbm. that's the vibe.

🔥 DESCRIPTION 🔥

so what does she actually do? she receives and dispatches ISHTP client messages using DMA. that's the whole paragraph, and honestly it ate 👑

DMA means the hardware is doing the heavy lifting on the data movement, which is lowkey the main character energy of this whole function. and then she dispatches — like, sends the message on its way to wherever it needs to go.

⚠️ important caveat bestie, don't skip this one: this function executes in ISR or work queue context. so like, be aware of what context you're in when you call her. no blocking, no napping, no "brb" — she's in an interrupt service routine or a work queue, and those contexts keep it moving 💀

🌈 SEE ALSO 🌈

okay this list is LONG and she's serving range, so buckle up 🧚

like I said. range. every single one of them, no skips, we don't do that here 🌟

💌 and that's the page! shoutout to the source directory ./drivers/hid/intel-ish-hid/ishtp and the date October 2026 — that's the version and the timestamp, and this whole recv_ishtp_cl_msg_dma(9) moment is officially wrapped. mwah 💋🦋🌸
📦 where this page comes from