Peter Miller wrote: > Dear Lazy Web, > > I know Nautilus can figure it out, but that's a big code base, and while > I'm reading, I thought I'd ask you guys, too. > > Does anyone know what ioctl() or ioctl()s does Nautilus use to tell the > kind of blank media is in the CD-Rom drive?
Perhaps naïvely, I'd expect Nautilus would ask HAL rather than do the ioctl()ing itself. A quick bit of searching with codesearch.google.com suggests I might be right: <http://www.google.com/codesearch/p?hl=en#WUhbbSwuY44/nautilus-cd-burner-2.17.2/src/nautilus-burn-drive-monitor.c&q=package:nautilus-cd-burner%20%22volume.disc.capacity%22> Relevant snippet of src/nautilus-burn-drive-monitor.c of nautilus-cd-burner 2.17.2: size = libhal_device_get_property_uint64 (monitor->priv->ctx, drive->priv->media_udi, "volume.disc.capacity", &error); In hal, it looks like hald/linux/probing/linux_dvd_rw_utils.c's get_disc_capacity_for_type is where volume.disc.capacity is set (on Linux anyway)... apparently via issuing SCSI commands via ioctls! Codesearch link: <http://www.google.com/codesearch/p?hl=en#CJAAg7rNO1A/hal-0.5.9/hald/linux/probing/linux_dvd_rw_utils.c&q=package:hal%20function:get_disc_capacity_for_type> -Andrew. _______________________________________________ coders mailing list coders@slug.org.au http://lists.slug.org.au/listinfo/coders
