mipi_dsi_dc...ddress_multi(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

🌸 mipi_dsi_dc...ddress_multi(9) πŸ’…

okay bestie, so this little icon is a page straight outta the Kernel API Manual, and the full name is mipi_dsi_dcs_set_column_address_multi β€” the title up there is just the truncated vibe (the man page system really said "we're not printing all that" 😭). Anyway. Sit down, grab a strawberry drink πŸ“, we're talking about telling a DSI display which columns of its frame memory the host processor is allowed to touch.


✨ NAME ✨

mipi_dsi_dcs_set_column_address_multi β€” defines the column extent of the frame memory that the host processor accesses. Basically: "hey display, here's the slice of columns we're working in" πŸŽ€


✨ SYNOPSIS ✨

void mipi_dsi_dcs_set_column_address_multi (struct mipi_dsi_multi_context *ctx, u16 start, u16 end);

That's it. That's the whole signature. Clean. Iconic. No notes. πŸ‘‘


✨ ARGUMENTS ✨

  • ctx β€” the context for multiple DSI transactions, like the little group chat that keeps track of everything happening in this run of calls 🫢
  • start β€” the first column of frame memory. Where the party starts, lowkey 🌸
  • end β€” the last column of frame memory. Where it wraps up. The closing number πŸ’œ

Both start and end are u16, fr fr. No sneaking in a u32, iykyk.


✨ DESCRIPTION ✨

So this function is literally just like mipi_dsi_dcs_set_column_address β€” same energy, same job β€” except it handles errors in a way that makes it convenient to make several calls in a row ✨. That's the whole flex. If you're about to fire off a bunch of DCS calls back to back and you don't wanna do the error-checking dance after every single one, this is your girl πŸ’….

Think of it as the "multi" version of the club: same function, but built for the group hangout instead of the solo outing πŸ¦‹


✨ SEE ALSO ✨

the entire friend group, no cap β€” every one of these is invited to the party πŸŽ‰ first up, the source file itself: ./drivers/gpu/drm/drm_mipi_dsi.c, then:


okay that's the whole page, bestie, you ate that 🫢 this masterpiece lives in ./drivers/gpu/drm and the calendar says October 2026 β€” go forth and set those column addresses πŸ’–βœ¨πŸŽ€

πŸ“¦ where this page comes from