3 # Suspend the system using either ACPI or APM.
4 # For APM, "apm -z" will be issued.
5 # For ACPI, the configured suspend state will be looked up, checked to see
6 # if it is supported, and "acpiconf -s <state>" will be issued.
8 # Mark Santcroos <marks@ripe.net>
11 PATH=/sbin:/usr/sbin:/usr/bin:/bin
13 ACPI_SUSPEND_STATE=hw.acpi.suspend_state
14 ACPI_SUPPORTED_STATES=hw.acpi.supported_sleep_state
15 APM_SUSPEND_DELAY=machdep.apm_suspend_delay
17 # Check for ACPI support
18 if sysctl $ACPI_SUSPEND_STATE >/dev/null 2>&1; then
19 # Get configured suspend state
20 SUSPEND_STATE=$(sysctl -n $ACPI_SUSPEND_STATE)
22 # Get list of supported suspend states
23 SUPPORTED_STATES=$(sysctl -n $ACPI_SUPPORTED_STATES)
25 # Check if the configured suspend state is supported by the system
26 if echo "$SUPPORTED_STATES" | grep "$SUSPEND_STATE" >/dev/null; then
27 # execute ACPI style suspend command
28 exec acpiconf -s "$SUSPEND_STATE"
30 echo -n "Requested suspend state $SUSPEND_STATE "
31 echo -n "is not supported."
32 echo "Supported states: $SUPPORTED_STATES"
34 # Check for APM support
35 elif sysctl $APM_SUSPEND_DELAY >/dev/null 2>&1; then
36 # Execute APM style suspend command
39 echo "Error: no ACPI or APM suspend support found."