I was wondering if I did a simple writev to a SCSI disk, does it take the sg path to the device? I am guessing sg (REQ_SPECIAL) is only true for character devices (and ioctl's) and not block devices. These are my questions: - Is sg a common feature among SCSI disks these days? How do I know what disks support this feature (any capabilities published by the driver)? - How does one make writev work for SCSI disk (as a block device) in direct_io? - If I use SCSI disks as character device, can I simply use writev on the character device file, and will sg codepath be taken? - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
