diff options
Diffstat (limited to 'Documentation/power/swsusp.txt')
-rw-r--r-- | Documentation/power/swsusp.txt | 14 |
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 | |||
156 | be very careful). | 156 | be very careful). |
157 | 157 | ||
158 | 158 | ||
159 | Q: What is the difference between "platform", "shutdown" and | 159 | Q: What is the difference between "platform" and "shutdown"? |
160 | "firmware" in /sys/power/disk? | ||
161 | 160 | ||
162 | A: | 161 | A: |
163 | 162 | ||
@@ -166,11 +165,8 @@ shutdown: save state in linux, then tell bios to powerdown | |||
166 | platform: save state in linux, then tell bios to powerdown and blink | 165 | platform: save state in linux, then tell bios to powerdown and blink |
167 | "suspended led" | 166 | "suspended led" |
168 | 167 | ||
169 | firmware: tell bios to save state itself [needs BIOS-specific suspend | 168 | "platform" is actually right thing to do where supported, but |
170 | partition, and has very little to do with swsusp] | 169 | "shutdown" is most reliable (except on ACPI systems). |
171 | |||
172 | "platform" is actually right thing to do, but "shutdown" is most | ||
173 | reliable. | ||
174 | 170 | ||
175 | Q: I do not understand why you have such strong objections to idea of | 171 | Q: I do not understand why you have such strong objections to idea of |
176 | selective suspend. | 172 | selective suspend. |
@@ -388,8 +384,8 @@ while the system is asleep, maintaining the connection, using true sleep | |||
388 | modes like "suspend-to-RAM" or "standby". (Don't write "disk" to the | 384 | modes like "suspend-to-RAM" or "standby". (Don't write "disk" to the |
389 | /sys/power/state file; write "standby" or "mem".) We've not seen any | 385 | /sys/power/state file; write "standby" or "mem".) We've not seen any |
390 | hardware that can use these modes through software suspend, although in | 386 | hardware that can use these modes through software suspend, although in |
391 | theory some systems might support "platform" or "firmware" modes that | 387 | theory some systems might support "platform" modes that won't break the |
392 | won't break the USB connections. | 388 | USB connections. |
393 | 389 | ||
394 | Remember that it's always a bad idea to unplug a disk drive containing a | 390 | Remember that it's always a bad idea to unplug a disk drive containing a |
395 | mounted filesystem. That's true even when your system is asleep! The | 391 | mounted filesystem. That's true even when your system is asleep! The |