diff options
Diffstat (limited to 'Documentation/usb/power-management.txt')
-rw-r--r-- | Documentation/usb/power-management.txt | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Documentation/usb/power-management.txt b/Documentation/usb/power-management.txt index 4204eb01fd38..1392b61d6ebe 100644 --- a/Documentation/usb/power-management.txt +++ b/Documentation/usb/power-management.txt | |||
@@ -33,6 +33,10 @@ built with CONFIG_USB_SUSPEND enabled (which depends on | |||
33 | CONFIG_PM_RUNTIME). System PM support is present only if the kernel | 33 | CONFIG_PM_RUNTIME). System PM support is present only if the kernel |
34 | was built with CONFIG_SUSPEND or CONFIG_HIBERNATION enabled. | 34 | was built with CONFIG_SUSPEND or CONFIG_HIBERNATION enabled. |
35 | 35 | ||
36 | (Starting with the 3.10 kernel release, dynamic PM support for USB is | ||
37 | present whenever the kernel was built with CONFIG_PM_RUNTIME enabled. | ||
38 | The CONFIG_USB_SUSPEND option has been eliminated.) | ||
39 | |||
36 | 40 | ||
37 | What is Remote Wakeup? | 41 | What is Remote Wakeup? |
38 | ---------------------- | 42 | ---------------------- |
@@ -206,10 +210,8 @@ initialized to 5. (The idle-delay values for already existing devices | |||
206 | will not be affected.) | 210 | will not be affected.) |
207 | 211 | ||
208 | Setting the initial default idle-delay to -1 will prevent any | 212 | Setting the initial default idle-delay to -1 will prevent any |
209 | autosuspend of any USB device. This is a simple alternative to | 213 | autosuspend of any USB device. This has the benefit of allowing you |
210 | disabling CONFIG_USB_SUSPEND and rebuilding the kernel, and it has the | 214 | then to enable autosuspend for selected devices. |
211 | added benefit of allowing you to enable autosuspend for selected | ||
212 | devices. | ||
213 | 215 | ||
214 | 216 | ||
215 | Warnings | 217 | Warnings |