[haiku-bugs] Re: [Haiku] #2083: EHCI bus hanging at boot.
- From: "mmlr" <trac@xxxxxxxxxxxx>
- Date: Sun, 07 Mar 2010 23:01:45 -0000
#2083: EHCI bus hanging at boot.
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Reporter: bga | Owner: mmlr
Type: bug | Status: in-progress
Priority: blocker | Milestone: R1
Component: Drivers/USB | Version: R1/pre-alpha1
Keywords: | Blockedby:
Platform: All | Blocking:
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Comment(by mmlr):
I've applied something similar in r35780. It also removes the no-op loop
in that case. I'm still in the "broken BIOS" department though, as
indicating that we want ownership shouldn't cause this. The specs describe
this as fairly unconditional action to take when the OS intends to use the
controller exclusively. Since it also states that the BIOS may only take
ownership during POST and when the OS gives up control this interpretation
can work though (since the BIOS obviously didn't care during POST and
giving up ownership can never happen since we can't claim it in the first
place due to this exact problem). Pretty much kills off the possibility to
actively hand over the host controller control back to the BIOS, but we
don't do that anyway.
--
Ticket URL: <http://dev.haiku-os.org/ticket/2083#comment:35>
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