mount_qemufwcfg —
provide QEMU fw_cfg data as a file system
  
    | mount_qemufwcfg | [ -Fpath]
      [-ggid]
      [-Mdir-mode]
      [-mfile-mode]
      [-uuid]
      [fuse-options] node | 
The mount_qemufwcfg command provides the QEMU fw_cfg
  configuration files in a file system tree at point node.
  The directory specified by node is converted to an
  absolute path before use.
The options are as follows:
  - -Fpath
- Use path instead of
      /dev/qemufwcfg for the QEMU device.
- -ggid
- Use gid as group for files in the file system
      instead of the active group id.
- -Mdir-mode
- Use dir-mode as permissions for directories instead
      of the default 0555.
- -mfile-mode
- Use file-mode as permissions for files instead of
      the default 0444.
- -uuid
- Use uid as user for files in the file system instead
      of the active user id.
Amount_qemufwcfg command first appeared in
  NetBSD 9.0.