SlackBuildsOrg/system/usbmuxd

usbmuxd: USB Multiplex Daemon. This bit of software is in charge of
talking to your iPhone or iPod Touch over USB and coordinating access to
its services by other applications.

Before running this script, create a usbmux user with:
  useradd -u 277 -g plugdev -d /dev/null -s /bin/false usbmux