> while trying to limit the speed of DVD drives during DVD playback I've > come under the impression that GPCMD_SET_STREAMING via SG_IO doesn't yet > work with libata/PATA (AMD/NVIDIA PATA support). I tested on an NForce2 > board (all IDE, no SATA) and kernel 2.6.22.12. When I use the "old" ATA > kernel driver my drive slows down, with libata it doesn't. Is this a > known issue or has this slipped by unnoticed?
It isn't a known issue, and it suprises me as SG_IO basically passes commands through to the drive. We don't support speed change via xfermode setting but GPCMD_SET_STREAMING sohuld behave. > > I tried with mplayer dvd:// -dvd-device /dev/sr0 -dvd-speed BTW . I get > no errors in syslog/dmesg. Also mplayer doesn't report a problem (so > ioctl(fd, SG_IO, &sghdr) doesn't have a return < 0). Do you have a simple code example that shows the problem ? - 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/
