On Fri, 23 Nov 2007 21:10:39 -0800
Greg KH <[EMAIL PROTECTED]> wrote:
> On Fri, Nov 23, 2007 at 05:24:31PM -0700, Grant Likely wrote:
> > From: Peter Korsgaard <[EMAIL PROTECTED]>
> >
> > Some multi-role (host/peripheral) USB controllers use a shared interrupt
> > line for all parts of the chip. Export usb_hcd_irq so drivers can call it
> > from their interrupt handler instead of duplicating code.
> > Drivers pass an irqnum of 0 to usb_add_hcd to signal that the interrupt
> > handler
> > shouldn't be registerred by the core.
>
> What about for platforms where irq 0 is a valid irq?
There are no such platforms. Linus made that absolutely clear every time
this came up before
0 - No IRQ
A platform with a physical or bus IRQ of 0 needs to remap it to a
different constant.
Alan
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