ioctl on ia32

control device

compat_sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
number54 (0x36)
abii386
entry pointcompat_sys_ioctl
sinceLinux 3.3 or earlier (3.3 is the first release scanned for ia32)
man pageioctl(2)
sourceelixir.bootlin.com

Registers

registervalue
eax54, the syscall number
ebxunsigned int fd
ecxunsigned int cmd
edxunsigned long arg
eaxthe return value

Then run int 0x80 to enter the kernel.

This compat ABI is only available when the kernel is built with CONFIG_IA32_EMULATION.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/ia32/ioctl