SUBSYS_VIRTUAL_REGIS(9)           Device drivers infrastructure           SUBSYS_VIRTUAL_REGIS(9)



NAME
       subsys_virtual_register - register a subsystem at /sys/devices/virtual/

SYNOPSIS
       int subsys_virtual_register(struct bus_type * subsys,
                                   const struct attribute_group ** groups);

ARGUMENTS
       subsys
           virtual subsystem

       groups
           default attributes for the root device

DESCRIPTION
       All 'virtual' subsystems have a /sys/devices/system/<name> root device with the name of
       the subystem. The root device can carry subsystem-wide attributes. All registered devices
       are below this single root device. There's no restriction on device naming. This is for
       kernel software constructs which need sysfs interface.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                   SUBSYS_VIRTUAL_REGIS(9)