Oliver Neukum <oneukum(a)suse.de> writes:
Am Mittwoch 01 August 2007 schrieb Andreas Jaeger:
Playing with powertop, I got the following suggestion:
Suggestion: Enable the CONFIG_USB_SUSPEND kernel configuration option.
This option will automatically disable UHCI USB when not in use, and may
save approximately 1 Watt of power.
Is this something we should do in our kernel? Or what is the risk for
this? Will it break automatic access to hot-pluggable devices?
It will _not_ break hotplug. But it'll break all non-compliant devices
unless they are in the list list of quirky devices.However, we know
that list is incomplete. But we don't know how incomplete.
As a compromise, we might change the default to enable it only for
devices with drivers in the kernel. That would be a kind of whitelist.
So, what is the best way to move forward? Enable it directly after 10.3
is out so that people using alpha releases can report problems?
Andreas Jaeger, Director Platform/openSUSE, aj(a)suse.de
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
Maxfeldstr. 5, 90409 Nürnberg, Germany
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