ide interrupts

Trevor Woerner ppc339 at
Mon May 26 09:12:24 EST 2003

On May 23, 2003 12:09 pm, Benjamin Herrenschmidt wrote:
> On Fri, 2003-05-23 at 17:36, Trevor Woerner wrote:
> > There seems to be a lot of code in the IDE subsystem relating to
> > interrupts. Is there a way to set a device in polled (i.e.
> > non-interrupt) mode? Maybe some way to run the tasklet/bh
> > periodically?
> >
> > Does the IDE system want to monitor my ATA device's Ready_NotBusy
> > interrupt?
> No, linux IDE layer can't do that in a sane way, you are asking for
> a _lot_ of trouble... (especially if doing DMA)

"No" there isn't a way to set the device into polled mode, or "No" it
doesn't monitor the Ready_NotBusy interrupt?


** Sent via the linuxppc-dev mail list. See

More information about the Linuxppc-dev mailing list