scsi_set_sen...ield_pointer(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… scsi_set_sen...ield_pointer(9)

okay so bestie, welcome to the Kernel API Manual β€” yes, that's the manual name, and yes, we're doing this. today's main character is scsi_set_sense_field_pointer, a little function that's giving very specific energy: it sets the field pointer sense key specific information inside a formatted sense data buffer. πŸŽ€

literally that's the whole vibe. it goes into a sense data buffer you already built and drops the field pointer info where it belongs.


✨ SYNOPSIS ✨

int scsi_set_sense_field_pointer (u8 *buf , int buf_len , u16 fp , u8 bp
, bool cd );

no cap, five args, and every single one of them matters. let's get into it 🫢


🌸 ARGUMENTS 🌸

  • buf β€” where you build the sense data. this is the formatted sense data buffer, your canvas, your stage. πŸ’–
  • buf_len β€” the buffer length. gotta tell the function how much room it has to work with.
  • fp β€” the field pointer to be set. it's a u16, it's important, it's the whole point. πŸ”₯
  • bp β€” the bit pointer to be set. a u8, tiny but iconic.
  • cd β€” the command/data bit. it's a bool, so it's living that true/false life. ⭐

πŸ¦‹ DESCRIPTION πŸ¦‹

so what does it actually do? it sets the field pointer sense key specific information in a formatted sense data buffer. that's the tea. πŸ’…

and the return value? bestie, it's simple and I respect it:

  • 0 on success πŸŽ‰
  • -EINVAL for invalid sense buffer length 😭 (so like, check your buf_len, fr fr)
ngl, that -EINVAL is your little warning bell β€” a bad length and the function is not having it. no silent weirdness, just a clean error. πŸ™ˆ

πŸ‘‘ SEE ALSO πŸ‘‘

the kernel file lives at ./drivers/scsi/scsi_common.c β€” that's home base. 🧚

and here's the friend group, all referenced, all linked, no one left behind:

go read them, they're all slaying in their own way. 🌈


and that's the page! source directory <pink>./drivers/scsi</pink>, dated <purple>October 2026</purple> β€” so mark your calendars, bestie, this one's stamped and official. mwah πŸ’‹βœ¨

πŸ“¦ where this page comes from