Messages in this thread |  | | | Date | Thu, 9 Nov 2006 15:13:19 -0500 | | From | "Monty Montgomery" <> | | Subject | Re: 2.6.19-rc3 system freezes when ripping with cdparanoia at ioctl(SG_IO) |
| |
On 11/9/06, Jeff Garzik <jgarzik@pobox.com> wrote:
> Mapping 'bidirectional' is a bit difficult.
SGIO_TO_FROM_DEVICE is *not* bdirectional!
From the header that defines it:
#define SG_DXFER_TO_FROM_DEV -4 /* treated like SG_DXFER_FROM_DEV with the additional property than during indirect IO the user buffer is copied into the kernel buffers before the transfer */ That's pretty darned clear. TO_FROM_DEVICE is a straight-up read. Why the continuing confusion of what this mode is for?
> Given that there are stupid apps/libs out there in the field with this > behavior, even if the apps are fixed I think we are stuck with the > stupidities.
*ahem*
Monty - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |