_ishtp_read(9)

📦 version 7.3.1, in nixpkgs unstable

🎀 _ishtp_read(9) 🎀

okay bestie, welcome to the Kernel API Manual ✨ we're doing kernel internals today and honestly? it's giving main character energy. this one's a tiny little function called _ishtp_read and it literally just reads a message, but let's do the whole tour anyway 💅

✨ NAME ✨

_ishtp_read — read a message 📨 lowkey that's the whole vibe, no cap.

🌸 SYNOPSIS 🌸

int _ishtp_read (struct ishtp_device *dev , unsigned char *buffer ,
       unsigned long buffer_length );

she returns an int, she takes three things, she's iconic 🫶

🦋 ARGUMENTS 🦋

  • dev — the ISHTP device pointer 👑 like, which device are we even talking to, bestie? this one.
  • buffer — the message buffer 🧺 the place where the message goes. think of it as the tote bag.
  • buffer_length — length of the message buffer 📏 how much room that tote bag actually has. important!!

💖 DESCRIPTION 💖

Read a message from FW 🔥 that's it, that's the description. FW = firmware, the little buddy on the other side. she reads, she delivers, she doesn't make a whole thing of it. periodt 💅

⭐ RETURN ⭐

Always 0 💀 no drama, no error codes, no surprises. just 0. literally every time. ngl that's kind of refreshing??

ok but for real — always 0. like, don't go checking this for failure signals because there are none coming. 🙈

🌈 SEE ALSO 🌈

the friend group 🫶 the whole squad is here, and yes, we're listing every single one because nobody gets left out:

the kernel file ./drivers/hid/intel-ish-hid/ipc/ipc.c — that's where she lives, that's her house 🏠

go read them all. iykyk 💜

mwah 💋 that's the whole page!! shoutout to the source path ./drivers/hid/intel-ish-hid/ipc and the date October 2026 — she's stamped, she's signed, she's so valid. see you in the next manual bestie 🧚‍♀️✨

📦 where this page comes from