From owner-freebsd-usb@FreeBSD.ORG  Thu Apr 16 09:01:46 2009
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Date: Thu, 16 Apr 2009 11:01:43 +0200 (CEST)
From: Alexander Best <alexbestms@math.uni-muenster.de>
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Subject: Suspend failed
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hi there,

i'm using the following commands to deactivate and activate my mouse:

usbconfig -u 1 -a 3 power_off
usbconfig -u 1 -a 3 power_on

which works great. if i issue the commands shortly after another this is what
happens:

ums0: at uhub1, port 2, addr 3 (disconnected)
ums0: <Razer Razer 1600dpi Mouse, class 0/0, rev 2.00/21.00, addr 3> on usbus1
ums0: 7 buttons and [XYZ] coordinates ID=0

however. if i wait for some time before re-activating the mouse it flashes
twice and this is what dmesg says:

ums0: at uhub1, port 2, addr 3 (disconnected)
ums0: <Razer Razer 1600dpi Mouse, class 0/0, rev 2.00/21.00, addr 3> on usbus1
ums0: 7 buttons and [XYZ] coordinates ID=0
ums0: Suspend failed

the "Suspend failed" warning however isn't causing any problems. the mouse
attaches just fine.

i'm running r191076 (-CURRENT/usb2).

cheers.
alex