// devela::sys::os::linux::file
//
//! File-descriptor–centric ABI surface.
//!
//! This module groups Linux ABI items whose semantics are scoped to an
//! open file descriptor, including descriptor flags, control commands,
//! metadata queries, and extended control operations (`ioctl`).
//
// LINUX_F_CMD
// LINUX_[FILENO|O_FLAGS|SEEK]
// LINUX_IOCTL
// LinuxStat, LINUX_S_IFMT
cratestructural_mods!