On Wed, 2 Jul 2014, Paul Bolle wrote: > There's no power/persist file for hubs. And CONFIG_USB_PERSIST was > removed in v2.6.26. Update the description of power/persist accordingly. > Also remove the line on its default value. It is not entirely correct, as > CONFIG_USB_DEFAULT_PERSIST and the USB_QUIRK_RESET flag influence the > default. It is not needed to understand this file anyhow. > > Signed-off-by: Paul Bolle <pebolle@xxxxxxxxxx> > --- > v2: incorporate Alan's feedback. The clearest way to do that was to not > mention the default value at all. Trying to do handle the default > correctly made the text way too complicated. I hope Alan agrees. > > Perhaps the line on hubs should not be added, as the text now states > that device directories "can" contain this file. > > Documentation/ABI/stable/sysfs-bus-usb | 14 +++++++------- > 1 file changed, 7 insertions(+), 7 deletions(-) > > diff --git a/Documentation/ABI/stable/sysfs-bus-usb b/Documentation/ABI/stable/sysfs-bus-usb > index a6b685724740..e2bc700a6f9c 100644 > --- a/Documentation/ABI/stable/sysfs-bus-usb > +++ b/Documentation/ABI/stable/sysfs-bus-usb > @@ -3,13 +3,13 @@ Date: May 2007 > KernelVersion: 2.6.23 > Contact: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> > Description: > - If CONFIG_USB_PERSIST is set, then each USB device directory > - will contain a file named power/persist. The file holds a > - boolean value (0 or 1) indicating whether or not the > - "USB-Persist" facility is enabled for the device. Since the > - facility is inherently dangerous, it is disabled by default > - for all devices except hubs. For more information, see > - Documentation/usb/persist.txt. > + USB device directories can contain a file named power/persist. > + The file holds a boolean value (0 or 1) indicating whether or > + not the "USB-Persist" facility is enabled for the device. For > + hubs this facility is always enabled and their device > + directories will not contain this file. > + > + For more information, see Documentation/usb/persist.txt. > > What: /sys/bus/usb/devices/.../power/autosuspend > Date: March 2007 > Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
