dpmcp_close(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… dpmcp_close β€” a Kernel API Manual moment (that's dpmcp_close(9) to you, bestie)

okay so real talk, we're in the Kernel API Manual today and this little function is lowkey iconic. it's called dpmcp_close and it's literally the "bye bestie" of control sessions. let's get into it πŸŽ€


✨ NAME ✨

dpmcp_close β€” close the control session of the object 🫢

like, that's it. that's the whole vibe. it closes stuff. periodt.


🌸 SYNOPSIS 🌸

int dpmcp_close (struct fsl_mc_io *mc_io , u32 cmd_flags , u16 token );

yes she takes three arguments and returns an int, no cap. copy it exactly if you're typing it out, because i am not about to let you fumble the signature πŸ’€


πŸ¦‹ ARGUMENTS πŸ¦‹

  • mc_io β€” pointer to the MC portal's I/O object. it's the doorway, the portal, the whole main character entrance ✨
  • cmd_flags β€” command flags, and you're picking one or more of 'MC_CMD_FLAG_' (note the trailing underscore, it's not a typo, it's a family of flags, iykyk)
  • token β€” the token of the DPMCP object. it's giving backstage pass 🎟️ you need it to get in

πŸ’œ DESCRIPTION πŸ’œ

so here's the tea β˜•: after this function gets called, no further operations are allowed on the object without opening a new control session.

like, the door is closed. locked. not even a little peek. you want back in? run dpmcp_open(9) and start fresh, babe. that's the rule and she does not bend πŸ™ˆ


⭐ RETURN ⭐

ngl, this section is literally empty in the original β€” no return values listed, nothing, just vibes and a heading. it's giving "the void stared back" πŸ’€ so don't come at me for not making anything up, because i would never invent facts about a kernel function. (she returns an int, that much we know from the synopsis ✨)


🌈 SEE ALSO 🌈

  • the kernel file ./drivers/bus/fsl-mc/dpmcp.c β€” go read the source, bestie, it's right there πŸ‘€
  • dpmcp_open(9) β€” the other half of this love story, the one that opens the session you just slammed shut πŸšͺ

⚠️ friendly reminder that once dpmcp_close runs, there's no "oops undo" β€” you need a whole new control session to touch the object again. plan accordingly πŸ’…

and that's the page!! πŸŽ€ shoutout to the Kernel API Manual for hosting, to ./drivers/bus/fsl-mc for being the source, and to October 2026 for the date stamp β€” she's from the future, respectfully πŸ¦‹βœ¨ mwah, see you in the next manpage bestie πŸ’–

πŸ“¦ where this page comes from