On Thu, 2007-02-22 at 11:59 +0530, MASTHAN DUDEKULA wrote:
> Hi JAMES,
>
>
> The following code is SG_IO equivalent of scsi ioctls
> SCSI_TEST_UNIT_READY
>
> unsigned char sense_b[32];
> unsigned char turCmbBlk[] = {0x00, 0, 0, 0, 0, 0};
> struct sg_io_hdr io_hdr;
>
> memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
> io_hdr.interface_id = 'S';
> io_hdr.cmd_len = sizeof(turCmbBlk);
> io_hdr.mx_sb_len = sizeof(sense_b);
> io_hdr.dxfer_direction = SG_DXFER_NONE;
> io_hdr.cmdp = turCmbBlk;
> io_hdr.sbp = sense_b;
> io_hdr.timeout = DEF_TIMEOUT;
>
> if (ioctl(fd, SG_IO, &io_hdr) < 0) {
>
> Like this What is the SG_IO equivalent for SCSI_IOCTL_SCSI_COMMAND ?
I don't understand your question ... SCSI_IOCTL_SEND_COMMAND sends a
SCSI command to the device. Your example of test unit ready above does
just that ... it sends a Test Unit Ready command to the device using
SG_IO ... exactly what do you not understand about using SG_IO to send
commands to the device?
James
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