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D54626.id170642.diff
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diff --git a/sys/dev/acpica/acpi.c b/sys/dev/acpica/acpi.c
--- a/sys/dev/acpica/acpi.c
+++ b/sys/dev/acpica/acpi.c
@@ -616,7 +616,7 @@
/* Only enable S4BIOS by default if the FACS says it is available. */
if (AcpiGbl_FACS != NULL && AcpiGbl_FACS->Flags & ACPI_FACS_S4_BIOS_PRESENT)
- sc->acpi_s4bios = 1;
+ sc->acpi_s4bios = true;
/*
* Probe all supported ACPI sleep states. Awake (S0) is always supported,
@@ -744,9 +744,9 @@
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
OID_AUTO, "sleep_delay", CTLFLAG_RW, &sc->acpi_sleep_delay, 0,
"sleep delay in seconds");
- SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
+ SYSCTL_ADD_BOOL(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
OID_AUTO, "s4bios", CTLFLAG_RW, &sc->acpi_s4bios, 0,
- "Use S4BIOS when hibernating.");
+ "On hibernate, have the firmware save/restore the machine state (S4BIOS).");
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
OID_AUTO, "verbose", CTLFLAG_RW, &sc->acpi_verbose, 0, "verbose mode");
SYSCTL_ADD_INT(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
diff --git a/sys/dev/acpica/acpivar.h b/sys/dev/acpica/acpivar.h
--- a/sys/dev/acpica/acpivar.h
+++ b/sys/dev/acpica/acpivar.h
@@ -64,7 +64,7 @@
enum power_stype acpi_lid_switch_stype;
int acpi_standby_sx;
- int acpi_s4bios;
+ bool acpi_s4bios;
int acpi_sleep_delay;
int acpi_do_disable;
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D54626: acpi: 'hw.acpi.s4bios' sysctl: Change type to bool, expand description
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