path: root/Documentation/power/swsusp.txt
diff options
Diffstat (limited to 'Documentation/power/swsusp.txt')
1 files changed, 5 insertions, 9 deletions
diff --git a/Documentation/power/swsusp.txt b/Documentation/power/swsusp.txt
index 0761ff6c57ed..c55bd5079b90 100644
--- a/Documentation/power/swsusp.txt
+++ b/Documentation/power/swsusp.txt
@@ -156,8 +156,7 @@ instead set the PF_NOFREEZE process flag when creating the thread (and
be very careful).
-Q: What is the difference between "platform", "shutdown" and
-"firmware" in /sys/power/disk?
+Q: What is the difference between "platform" and "shutdown"?
@@ -166,11 +165,8 @@ shutdown: save state in linux, then tell bios to powerdown
platform: save state in linux, then tell bios to powerdown and blink
"suspended led"
-firmware: tell bios to save state itself [needs BIOS-specific suspend
- partition, and has very little to do with swsusp]
-"platform" is actually right thing to do, but "shutdown" is most
+"platform" is actually right thing to do where supported, but
+"shutdown" is most reliable (except on ACPI systems).
Q: I do not understand why you have such strong objections to idea of
selective suspend.
@@ -388,8 +384,8 @@ while the system is asleep, maintaining the connection, using true sleep
modes like "suspend-to-RAM" or "standby". (Don't write "disk" to the
/sys/power/state file; write "standby" or "mem".) We've not seen any
hardware that can use these modes through software suspend, although in
-theory some systems might support "platform" or "firmware" modes that
-won't break the USB connections.
+theory some systems might support "platform" modes that won't break the
+USB connections.
Remember that it's always a bad idea to unplug a disk drive containing a
mounted filesystem. That's true even when your system is asleep! The