Provided by: freebsd-manpages_12.2-1_all 

NAME
device_get_sysctl_ctx, device_get_sysctl_tree — manipulate the sysctl oid tree for driver specific sysctl
nodes
SYNOPSIS
#include <sys/param.h>
#include <sys/bus.h>
struct sysctl_ctx_list *
device_get_sysctl_ctx(device_t dev);
struct sysctl_oid *
device_get_sysctl_tree(device_t dev);
DESCRIPTION
The newbus system automatically adds a sysctl node for each device in the system. This node can be
accessed with the device_get_sysctl_tree() function. The context for the node can be obtained with the
device_get_sysctl_ctx() function.
SEE ALSO
device(9)
AUTHORS
This manual page was written by Warner Losh.
Debian June 18, 2011 DEVICE_GET_SYSCTL(9)