Greg KH wrote:
On Wed, Sep 12, 2007 at 10:50:26PM -0400, Mark Lord wrote:
Michal Piotrowski wrote:
Hi all,
Here is a list of some known regressions in 2.6.23-rc6.
...
Missing from the list:
USB "autosuspend" feature (new in 2.6.23) breaks *lots* of devices.
Many have since been blacklisted in one-at-a-time discovery patches,
but that's really just the tip of the iceberg.
This "feature" breaks a TON of user-visible things,
mostly USB storage devices (USB drives/pens, digicams, etc..).
The functionality is broken for just too much stuff,
and needs to either be reverted or defaulted to "off" rather than "on".
Ok, after conferring with Oliver this morning, I think the best solution
here is to both revert the usb-storage suspend patch as it has some
basic problems that can cause data loss, _and_ add the change to the
kernel that by default disables autosuspend on all USB devices except
hubs.
Sounds like a sane approach.
Hopefully the kinks can be worked out in time for a reattempt in 2.6.24.
I understand how important this stuff is for battery powered devices,
but it just doesn't appear to be ready yet.
Cheers
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