v4l2_fh_del(9)
π v4l2_fh_del β the Kernel API Manual glow-up π
okay bestie, you found the v4l2_fh_del(9) page and honestly? it's a little one, but it matters. this is the kernel API manual, and we're gonna get you comfy with it. no cap. β¨
πΈ NAME πΈ
v4l2_fh_del β remove a file handle from the list of file handles. that's it, that's the whole vibe. it's a goodbye function. a "you may now exit the group chat" function. π«Ά
β¨ SYNOPSIS β¨
void v4l2_fh_del (struct v4l2_fh *fh , struct file *filp );
literally two args. void return. no drama, no return value to check, she just does the thing. π
π¦ ARGUMENTS π¦
fhβ pointer tostruct v4l2_fh. this is the file handle we're saying bye-bye to, bestie. πfilpβ pointer tostruct fileassociated withfh. they're a matched set, iykyk. π₯
π DESCRIPTION π
so what actually happens? the function resets filp->private_data to NULL. that's the move. she zeroes it out, clean and simple. π
NOTE: this is the important part, don't skip it π β you must call this in thev4l2_file_operations->releasehandler if your driver usesstruct v4l2_fh. like, if you're usingstruct v4l2_fhand you don't call this in that handlerβ¦ that's not the vibe. that's a bug. periodt. π
π SEE ALSO π
go read these next, they're all part of the same friend group π:
- Kernel file
./include/media/v4l2-fh.h struct v4l2_fh(9)file_to_v4l2_fh(9)v4l2_fh_init(9)v4l2_fh_add(9)v4l2_fh_open(9)v4l2_fh_exit(9)v4l2_fh_release(9)v4l2_fh_is_singular(9)v4l2_fh_is_singular_file(9)
aaaand that's the whole page, bestie! π§ this little gem lives over in ./include/media, it's dated October 2026, and the page itself is v4l2_fh_del(9). now go forth and release your file handles correctly. slay. ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms