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From: Robert Millan <rmh@aybabtu.com>
To: The development of GRUB 2 <grub-devel@gnu.org>
Subject: Re: [PATCH] reset USB controller
Date: Thu, 16 Jul 2009 17:56:31 +0200	[thread overview]
Message-ID: <20090716155631.GE6771@thorin> (raw)
In-Reply-To: <d7ead6de0907151351y302c59c3xed2c4aaf6bc9c75f@mail.gmail.com>

On Wed, Jul 15, 2009 at 10:51:55PM +0200, Vladimir 'phcoder' Serbinenko wrote:
> Hello, some BIOSes don't conform semaphore specification about handing
> over the control on UHCI and/or EHCI controller. Most OS cope with it
> by taking ownership regardless after some timeout. This however
> increases booting time. Also some OSes don't cope with this quirk
> correctly and are unable to access some devices. Here is a module to
> forcibly remove BIOS ownership without timeout. It adds 2 commands:
> ehcireste and uhcireset. I choose to name both functions analogously
> even if actually only UHCI is really reset

Is there some way we can make this simpler without compromising on boot
speed?  Adding more setup burden to the user should be the last ressort
IMO.

-- 
Robert Millan

  The DRM opt-in fallacy: "Your data belongs to us. We will decide when (and
  how) you may access your data; but nobody's threatening your freedom: we
  still allow you to remove your data and not access it at all."



  parent reply	other threads:[~2009-07-16 15:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-07-15 20:51 [PATCH] reset USB controller Vladimir 'phcoder' Serbinenko
2009-07-15 20:53 ` Vladimir 'phcoder' Serbinenko
2009-07-16 15:56 ` Robert Millan [this message]
2009-08-28 20:41   ` Vladimir 'phcoder' Serbinenko
2009-08-31 13:36     ` Mikko Rantalainen
2009-09-01 11:33       ` Robert Millan

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