svcadm(8)을 검색하려면 섹션에서 8 을 선택하고, 맨 페이지 이름에 svcadm을 입력하고 검색을 누른다.
pm_idle_component(9f)
pm_busy_component(9F) Kernel Functions pm_busy_component(9F)
NAME
pm_busy_component, pm_idle_component - control device component avail‐
ability for Power Management
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
int pm_busy_component(dev_info_t *dip, int component);
int pm_idle_component(dev_info_t *dip, int component);
INTERFACE LEVEL
Solaris DDI specific (Solaris DDI)
PARAMETERS
dip Pointer to the device's dev_info structure.
component The number of the component to be power-managed.
DESCRIPTION
The pm_busy_component() function sets component of dip to be busy.
Calls to pm_busy_component() are stacked, requiring a corresponding
number of calls to pm_idle_component() to make the component idle
again. When a device is busy it will not be power-managed by the sys‐
tem.
The pm_idle_component() function marks component idle, recording the
time that component went idle. This function must be called once for
each call to pm_busy_component(). A component which is idle is avail‐
able to be power-managed by the system. The pm_idle_component() func‐
tion has no effect if the component is already idle, except to update
the system's notion of when the device went idle.
If these functions are called as a result of entry into the driver's
attach(9E), detach(9E) or power(9E) entry point, these functions must
be called from the same thread which entered attach(9E), detach(9E) or
power(9E).
RETURN VALUES
The pm_busy_component() and pm_idle_component() functions return:
DDI_SUCCESS Successfully set the indicated component busy or idle.
DDI_FAILURE Invalid component number component or the device has no
components.
CONTEXT
These functions can be called from user or kernel context. These func‐
tions may also be called from interrupt context, providing they are not
the first Power Management function called by the driver.
ATTRIBUTES
See attributes(7) for descriptions of the following attributes:
tab() box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) ATTRIBUTE TYPEAT‐
TRIBUTE VALUE _ Interface StabilityCommitted
SEE ALSO
pm(4D), attach(9E), detach(9E), power(9E), pm_raise_power(9F), pm(9P),
pm-components(9P)
Writing Device Drivers in Oracle Solaris 11.4
Oracle Solaris 11.4 15 Jul 2011 pm_busy_component(9F)