mipi_dsi_generic_read(9)

📦 version 7.3.1, in nixpkgs unstable

✨ mipi_dsi_generic_read ✨

okay so this is a page from the Kernel API Manual, section 9, and it's literally all about one little function that slides data back out of a DSI peripheral using a generic read packet. bestie, it's giving "one job, done right" energy 💅

🌸 SYNOPSIS 🌸

ssize_t mipi_dsi_generic_read (struct mipi_dsi_device *dsi , const void
*params , size_t num_params , void *data , size_t size );

🎀 ARGUMENTS 🎀

  • dsi — the DSI peripheral device. the main character of this whole operation fr.
  • params — a buffer holding the request parameters. like, the little ask you're sending out 👑
  • num_params — how many request parameters are chillin' in there. count 'em, bestie 🔢
  • data — the buffer where the received data gets to live. it's the receive-buffer's moment ✨
  • size — the size of that receive buffer. know your limits, queen 💀

💖 DESCRIPTION 💖

so this function will automatically choose the right data type depending on the number of parameters you passed in. no cap — you don't have to pick the type yourself, it just reads the num_params vibe check and handles it. the way that's lowkey iconic 🦋

🌈 RETURN 🌈

it hands you back the number of bytes successfully read, or a negative error code if things went sideways 😭. so like, check the sign before you celebrate.

🫶 SEE ALSO 🫶

the kernel file lives at ./drivers/gpu/drm/drm_mipi_dsi.c and it's the whole dsi helpers situation. here's the entire squad, no gatekeeping:

and that's the whole page, bestie 💜 this cutie comes from ./drivers/gpu/drm in the Kernel API Manual, dated October 2026, and it lives at mipi_dsi_generic_read(9) — go read it again if you forgot something, iykyk 🌟🎀🦋

📦 where this page comes from