Hello,
I want to write a tape utility using the SG_IO interface (because I
don't have the expensive IBM one ;) ) but I have got a problem with the
SCSI interface.
My program looks as follows:
ioctl(g_fd,SG_IO,&io_hdr);
memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
struct read_attr_cmd cmd;
cmd.opcode = 0x8C;
cmd.s_action = 0;
cmd.pad1 = cmd.pad2 = cmd.pad3 = cmd.pad4 = 0;
cmd.volid = cmd.partition = 0;
cmd.attrib_id = htons(attribs[idx].id);
cmd.size = htonl(buffer_size);
cmd.control = 0;
assert(sizeof(struct read_attr_cmd) == 16);
io_hdr.interface_id='S';
io_hdr.cmd_len = 16;//sizeof cmd;
io_hdr.mx_sb_len= sizeof(sense_b);
io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
io_hdr.dxferp = buffer;
io_hdr.dxfer_len = buffer_size;
io_hdr.cmdp = (unsigned char *) &cmd;
io_hdr.sbp = sense_b;
io_hdr.timeout = 10000;
if(ioctl(g_fd,SG_IO,&io_hdr) == -1)
The IOCTL succeeds, but io_hdr.host_status contains SG_ERR_DID_ABORT.
All other fields are not touched. I am using an Adaptec 29160N(AIC7892)
with the adaptec aix7xxx driver on Linux 2.6.31 (ubuntu). As far as I
know this driver supports 16 Byte commands.
Thank you very much for your assistance,
-- Julian Bangert
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