document APM_DISABLE_INTERRUPTS
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@ -24,7 +24,7 @@
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.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\" POSSIBILITY OF SUCH DAMAGE.
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.\"
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.\"
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.\" $NetBSD: apm.4,v 1.6 1999/09/09 03:52:22 itohy Exp $
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.\" $NetBSD: apm.4,v 1.7 1999/12/17 10:34:23 joda Exp $
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.\"
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.\"
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.Dd May 18, 1996
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.Dd May 18, 1996
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.Dt APM 4 i386
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.Dt APM 4 i386
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@ -76,6 +76,13 @@ Do not print power state on console at
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.Dv APM_POWER_CHANGE
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.Dv APM_POWER_CHANGE
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events. (Some systems generate the events too frequently,
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events. (Some systems generate the events too frequently,
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and printing the status may disturb single-user operations.)
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and printing the status may disturb single-user operations.)
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.It Dv APM_DISABLE_INTERRUPTS
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Set this to zero if you don't want the kernel to disable interrupts
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before calling the BIOS. This is required for most IBM ThinkPads, and
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some other newer laptops. A good indication that you need this is that
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the machine hangs just after resuming from suspended state. It's
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unclear if doing this has negative effects on older BIOS, therefore it
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defaults to one (i.e interrupts are disabled).
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.El
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.El
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.Pp
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.Pp
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If no processes are holding open file descriptors to the APM device, the
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If no processes are holding open file descriptors to the APM device, the
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