...execve (2), fcntl (2), ioctl_tty (2), ioperm (2), termios (3), console_codes (4), mt (4), sd (4), tty (4), ttyS (4), vcs (4), vcsa (4), charsets (7), mapscrn (8), resizecons (8)…...) SYNOPSIS #include <sys/ioctl.h> int ioctl(int fd , unsigned long op , ...); /* glibc, BSD */ int ioctl(int fd , int op , ...); /* musl, other UNIX */ DESCRIPTION The ioctl () …...ommand displays a list of all schedulers currently loaded in the kernel: $ cat /sys/block/sda/queue/scheduler noop anticipatory deadline [cfq] The scheduler surrounded by bracke…...ommand displays a list of all schedulers currently loaded in the kernel: $ cat /sys/block/sda/queue/scheduler noop anticipatory deadline [cfq] The scheduler surrounded by bracke…...2.16 and later: No feature test macros need be defined glibc up to and including 2.15: _BSD_SOURCE || _XOPEN_SOURCE || /* Since glibc 2.8: */ _POSIX_C_SOURCE >= 200112L fdatasyn…...2.16 and later: No feature test macros need be defined glibc up to and including 2.15: _BSD_SOURCE || _XOPEN_SOURCE || /* Since glibc 2.8: */ _POSIX_C_SOURCE >= 200112L fdatasyn…