Re: [<02282da7>] (usb_hcd_irq+0x0/0x4b) Disabling IRQ #5 - USBDevices do not work
From: Florian Krammel
Date: Sun Dec 12 2004 - 08:41:03 EST
Am Mittwoch, den 08.12.2004, 11:03 +0000 schrieb Alan Cox:
> On Maw, 2004-12-07 at 20:52, Florian Krammel wrote:
> > > > Ditto, and this is quite possibly the root cause. That suggests the BIOS
> > > > handover code for EHCI is insufficient for some cases (and it appears to
> > > > be looking at the code quickly - it should register IRQ 5 before doing a
> > > > handover which it does but it probably needs to just ack and mask IRQ 5
> > > > during the handover. It could be another device breaking IRQ5 however)
> > > >
> > > >
> > > > What occurs if you build a kernel with EHCI disabled, ditto what occurs
> > > > if you boot with init=/bin/sh and then load ohci before ehci ?
> > I don't tested this because "irqpoll" solve my problem. Are you
> > interested in the result? I can try it.
> I would be very interested to know if this makes a difference yes
today I've tested this and there is no difference...
maybe it is the unsopported ATI chip?
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