mechanism of AIX ? Post: 302276971

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LEARN ABOUT SUSE

devfs

devfs(7FS)                                                         File Systems                                                         devfs(7FS)

NAME

       devfs - Devices file system

DESCRIPTION

       The devfs filesystem manages a name space of all devices under the Solaris operating environment and is mounted during boot on the /devices
       name space.

       The /devices name space is dynamic and reflects the current state of accessible devices under the Solaris operating environment. The  names
       of all attached device instances are present under /devices.

       The content under /devices is under the exclusive control of the devfs filesystem and cannot be changed.

       The system may be configured to include a device in one of two ways:

                 By means of dynamic reconfiguration (DR), using, for example, cfgadm(1M).

                 For  devices driven by driver.conf(4) enumeration, edit the driver.conf file to add a new entry, then use update_drv(1M) to cause
                 the system to re-read the driver.conf file and thereby enumerate the instance.

       The device may be attached through a number of system calls and programs, including open(2), stat(2) and ls(1). During device  attach,  the
       device  driver typically creates minor nodes corresponding to the device via ddi_create_minor_node(9F). If the attach is successful, one or
       more minor nodes referring to the device are created under /devices.

       Operations like mknod(2), mkdir(2) and creat(2) are not supported in /devices.

FILES

       /devices        Mount point for devfs file system

SEE ALSO

       devfsadm(1M), vfstab(4), attach(9E)

NOTES

       The /devices name space cannot be unmounted.

       All content at or below the /devices name space is an implementation artifact and subject to incompatible change or removal without notifi-
       cation.

SunOS 5.10                                                          26 Oct 2004                                                         devfs(7FS)