From: Alan Stern <stern@rowland.harvard.edu>
To: Michel Bouissou <michel@bouissou.net>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>,
<linux-kernel@vger.kernel.org>
Subject: Re: Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble
Date: Tue, 12 Jul 2005 14:15:54 -0400 (EDT) [thread overview]
Message-ID: <Pine.LNX.4.44L0.0507121412490.5351-100000@iolanthe.rowland.org> (raw)
In-Reply-To: <200507121903.49792@totor.bouissou.net>
On Tue, 12 Jul 2005, Michel Bouissou wrote:
> > In case it's not already clear, when you install this patch the UHCI
> > controllers will not be useable.
>
> Okay, the patch applied easily and the kernel is now compiling. When
> installed, I'll try and boot it (and will use a PS/2 mouse instead of my
> current USB mouse, or should I rather try to plug my USB mouse to the
> ehci_hcd controller ?).
USB mice generally run at low speed. This means that you _can't_ plug it
into an EHCI controller -- the controller will see that it's not a
high-speed device and will hand it over to a companion controller, which
in your case will be UHCI.
> How would you like me to boot ? With or without the "usb-handoff" option ?
> With or without the BIOS "USB mouse support" option ?
Use "usb-handoff" and turn off BIOS USB mouse support.
> And once booted, what information will you be interested in ?
I'll be interested in seeing if you still get the "IRQ 21 nobody cared"
message.
Alan Stern
next prev parent reply other threads:[~2005-07-12 18:15 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-10 18:50 Kernel 2.6.12 + IO-APIC + uhci_hcd = Trouble Protasevich, Natalie
2005-07-11 9:06 ` Michel Bouissou
2005-07-11 18:36 ` Alan Stern
2005-07-11 19:33 ` [SOLVED ??] " Michel Bouissou
2005-07-11 19:43 ` Alan Stern
2005-07-11 20:02 ` Michel Bouissou
2005-07-11 20:16 ` Alan Stern
2005-07-11 20:46 ` Michel Bouissou
2005-07-11 20:58 ` Michel Bouissou
2005-07-11 21:21 ` [NOT solved] " Michel Bouissou
2005-07-11 21:21 ` [SOLVED ??] " Alan Stern
2005-07-11 21:34 ` Michel Bouissou
2005-07-12 1:54 ` Alan Stern
2005-07-12 7:54 ` Michel Bouissou
2005-07-12 14:12 ` Alan Stern
2005-07-12 17:03 ` Michel Bouissou
2005-07-12 18:15 ` Alan Stern [this message]
2005-07-12 18:16 ` Michel Bouissou
2005-07-12 18:57 ` Alan Stern
2005-07-12 20:40 ` Michel Bouissou
2005-07-12 21:37 ` Alan Stern
2005-07-12 22:01 ` Michel Bouissou
-- strict thread matches above, loose matches on Subject: below --
2005-07-12 23:16 Protasevich, Natalie
2005-07-13 6:46 ` Michel Bouissou
2005-07-12 21:02 Protasevich, Natalie
2005-07-10 8:11 Michel Bouissou
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