On Mon, 24 Apr 2006, Russell King wrote:
> On Mon, Apr 24, 2006 at 12:02:47PM -0700, Linus Torvalds wrote:
> > On Mon, 24 Apr 2006, Stephen Hemminger wrote:
> > > We should fail request_irq() if the SA_SHIRQ but the irq is edge-triggered.
> >
> > That would be HORRIBLE.
> >
> > Edge-triggered works perfectly fine for SA_SHIRQ, as long as there is just
> > one user and the driver is properly written. Making request_irq() fail
> > would break existing and working setups.
>
> Sorry, untrue. If you take a serial port and a network card on the same
> edge triggered interrupt line [ ... ]
Read what I wrote!
"..as long as there is just one user .."
In other words, you MUST NOT disallow request_irq(), just because the one
user happens to use SA_SHIRQ.
Linus
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
