sysfs_chmod_file(9)

okay so bestie, this is sysfs_chmod_file(9) from the Kernel API Manual — and it’s literally the “update the modified mode value on an object attribute” girlie 💅✨ no cap.

💖 NAME 💖

sysfs_chmod_file — updates the modified mode value on an object attribute.

✨ SYNOPSIS ✨

okay so the signature is right here, copy it exactly:

int sysfs_chmod_file (struct kobject *kobj , const struct attribute
       *attr , umode_t mode );

🌸 ARGUMENTS 🌸

• kobj — the object we’re acting for 🫶
• attr — the attribute descriptor 🎀
• mode — the file permissions 🔐

🦋 SEE ALSO 🦋

bestie, the kernel file ./fs/sysfs/file.c is part of the squad too, and here’s the whole related-functions group chat — all of them, no skips:

• sysfs_create_file_ns(9)
• sysfs_add_file_to_group(9)
• sysfs_break_active_protection(9)
• sysfs_unbreak_active_protection(9)
• sysfs_remove_file_ns(9)
• sysfs_remove_file_self(9)
• sysfs_remove_file_from_group(9)
• sysfs_create_bin_file(9)
• sysfs_remove_bin_file(9)
• sysfs_link_change_owner(9)
• sysfs_file_change_owner(9)
• sysfs_change_owner(9)
• sysfs_emit(9)
• sysfs_emit_at(9)
• sysfs_bin_attr_simple_read(9)

kisses bestie 💖 little footer moment: source ./fs/sysfs, dated October 2026 🎀✨