Man pages matching name ioctl_fat in section 2:

ioctl_fat.2.en	debian 10 / manpages-dev
ioctl_fat.2.en	debian 11 / manpages-dev
ioctl_fat.2.fr	debian 11 / manpages-fr-dev
ioctl_fat.2.en	debian 12 / manpages-dev
ioctl_fat.2.fr	debian 12 / manpages-fr-dev
ioctl_fat.2.ru	debian 12 / manpages-ru-dev