[haiku-bugs] Re: [Haiku] #4604: USB errors after unplugging Wacom tablet
- From: "idefix" <trac@xxxxxxxxxxxx>
- Date: Sat, 09 Jan 2010 19:33:12 -0000
#4604: USB errors after unplugging Wacom tablet
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Reporter: idefix | Owner: mmlr
Type: bug | Status: reopened
Priority: normal | Milestone: R1
Component: Drivers/Mouse/USB | Version: R1/alpha1
Resolution: | Keywords:
Blockedby: | Platform: All
Blocking: |
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Comment(by idefix):
Replying to [comment:16 idefix]:
> Replying to [comment:15 mmlr]:
> > There will always be such error output on unplug as there simply is a
time between the device not being connected anymore and the stack getting
the unplug event. These are totally harmless and expected.
> Yes, just as you said in comment:1, but then you wouldn't see this
linearity (like I said in comment:2).
I have tested this some more and for every minute since the last time that
the pen was in proximation there will be four errors when I unplug the
tablet. There is an upper limit however: there won't be more than ~20
errors when unplugging the tablet.
> I predict that this will still cause my computer to exhaust the USB
physical memory pool, but it will take longer and during that time the pen
must not be in proximity. I will test this this weekend.
Because of the upper limit in usb errors shown when unplugging the tablet,
I'm not entirely sure if my prediction still holds. It does however cause
my cardreader to stop working when the pen is not in proximation for ~4
minutes (see comment:ticket:2344:21).
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Ticket URL: <http://dev.haiku-os.org/ticket/4604#comment:19>
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