usb: add decriptor of persist fail for some morph usb devices

Some morph devices will morph after being reset and cause persist
to fail. This patch is to add descriptor about this in the
Document/usb/persist.txt

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lan Tianyu 2012-08-03 16:30:36 +08:00 committed by Greg Kroah-Hartman
parent 7fc2cc320c
commit 4d9e4088e0
1 changed files with 3 additions and 0 deletions

View File

@ -155,6 +155,9 @@ If the kernel gets fooled in this way, it's almost certain to cause
data corruption and to crash your system. You'll have no one to blame
but yourself.
For those devices with avoid_reset_quirk attribute being set, persist
maybe fail because they may morph after reset.
YOU HAVE BEEN WARNED! USE AT YOUR OWN RISK!
That having been said, most of the time there shouldn't be any trouble