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Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-usb')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-usb | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb new file mode 100644 index 000000000000..00a84326325f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-usb | |||
| @@ -0,0 +1,15 @@ | |||
| 1 | What: /sys/bus/usb/devices/.../power/autosuspend | ||
| 2 | Date: March 2007 | ||
| 3 | KernelVersion: 2.6.21 | ||
| 4 | Contact: Alan Stern <stern@rowland.harvard.edu> | ||
| 5 | Description: | ||
| 6 | Each USB device directory will contain a file named | ||
| 7 | power/autosuspend. This file holds the time (in seconds) | ||
| 8 | the device must be idle before it will be autosuspended. | ||
| 9 | 0 means the device will be autosuspended as soon as | ||
| 10 | possible. Negative values will prevent the device from | ||
| 11 | being autosuspended at all, and writing a negative value | ||
| 12 | will resume the device if it is already suspended. | ||
| 13 | |||
| 14 | The autosuspend delay for newly-created devices is set to | ||
| 15 | the value of the usbcore.autosuspend module parameter. | ||