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| author | Christoph Hellwig <hch@hera.kernel.org> | 2005-05-27 01:16:24 -0700 |
|---|---|---|
| committer | Christoph Hellwig <hch@melbourne.sgi.com> | 2005-05-27 01:16:24 -0700 |
| commit | b19312c4c8f3f84da57bba01d45549df1cf10dcd (patch) | |
| tree | 1c34ce89be6b4e257bc03026d0268deb17727044 /Documentation/power | |
| parent | d3870398fafd4911bd84573b78be4b6b762f32b0 (diff) | |
| parent | 4ec5240ec367a592834385893200dd4fb369354c (diff) | |
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'Documentation/power')
| -rw-r--r-- | Documentation/power/devices.txt | 21 |
1 files changed, 0 insertions, 21 deletions
diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 5d4ae9a39f1..f987afe43e2 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -207,27 +207,6 @@ SYSTEM_SHUTDOWN, I do not understand this one too much. probably event #READY_AFTER_RESUME # -Driver Detach Power Management - -The kernel now supports the ability to place a device in a low-power -state when it is detached from its driver, which happens when its -module is removed. - -Each device contains a 'detach_state' file in its sysfs directory -which can be used to control this state. Reading from this file -displays what the current detach state is set to. This is 0 (On) by -default. A user may write a positive integer value to this file in the -range of 1-4 inclusive. - -A value of 1-3 will indicate the device should be placed in that -low-power state, which will cause ->suspend() to be called for that -device. A value of 4 indicates that the device should be shutdown, so -->shutdown() will be called for that device. - -The driver is responsible for reinitializing the device when the -module is re-inserted during it's ->probe() (or equivalent) method. -The driver core will not call any extra functions when binding the -device to the driver. pm_message_t meaning |