/* Yields most of first 36 bytes of a standard INQUIRY (evpd==0) response.
* Returns 0 when successful, various SG_LIB_CAT_* positive values or
* -1 -> other errors */
int
sg_simple_inquiry(int sg_fd, struct sg_simple_inquiry_resp * inq_data,
bool noisy, int verbose)
{
int ret;
unsigned char inq_resp[SAFE_STD_INQ_RESP_LEN];
if (inq_data) {
memset(inq_data, 0, sizeof(* inq_data));
inq_data->peripheral_qualifier = 0x3;
inq_data->peripheral_type = 0x1f;
}
ret = sg_ll_inquiry_com(sg_fd, false, false, 0, inq_resp,
sizeof(inq_resp), 0, NULL, noisy, verbose);
if (inq_data && (0 == ret)) {
inq_data->peripheral_qualifier = (inq_resp[0] >> 5) & 0x7;
inq_data->peripheral_type = inq_resp[0] & 0x1f;
inq_data->byte_1 = inq_resp[1];
inq_data->version = inq_resp[2];
inq_data->byte_3 = inq_resp[3];
inq_data->byte_5 = inq_resp[5];
inq_data->byte_6 = inq_resp[6];
inq_data->byte_7 = inq_resp[7];
memcpy(inq_data->vendor, inq_resp + 8, 8);
memcpy(inq_data->product, inq_resp + 16, 16);
memcpy(inq_data->revision, inq_resp + 32, 4);
}
/* Invokes a SCSI INQUIRY command and yields the response. Returns 0 when
* successful, various SG_LIB_CAT_* positive values or -1 -> other errors.
* The CMDDT field is obsolete in the INQUIRY cdb. */
int
sg_ll_inquiry(int sg_fd, bool cmddt, bool evpd, int pg_op, void * resp,
int mx_resp_len, bool noisy, int verbose)
{
return sg_ll_inquiry_com(sg_fd, cmddt, evpd, pg_op, resp, mx_resp_len,
0 /* timeout_sec */, NULL, noisy, verbose);
}
/* Similar to _v2 but takes a pointer to an object (derived from) sg_pt_base.
* That object is assumed to be constructed and have a device file descriptor
* associated with it. Caller is responsible for lifetime of ptp. */
int
sg_ll_inquiry_pt(struct sg_pt_base * ptvp, bool evpd, int pg_op, void * resp,
int mx_resp_len, int timeout_secs, int * residp, bool noisy,
int verbose)
{
clear_scsi_pt_obj(ptvp);
return sg_ll_inquiry_com(ptvp, false, evpd, pg_op, resp, mx_resp_len,
timeout_secs, residp, noisy, verbose);
}
/* Invokes a SCSI INQUIRY command and yields the response. Returns 0 when
* successful, various SG_LIB_CAT_* positive values, negated errno or
* -1 -> other errors. The CMDDT field is obsolete in the INQUIRY cdb. */
int
sg_ll_inquiry(int sg_fd, bool cmddt, bool evpd, int pg_op, void * resp,
int mx_resp_len, bool noisy, int verbose)
{
int ret;
struct sg_pt_base * ptvp;
ptvp = construct_scsi_pt_obj_with_fd(sg_fd, verbose);
if (NULL == ptvp)
return sg_convert_errno(ENOMEM);
ret = sg_ll_inquiry_com(ptvp, cmddt, evpd, pg_op, resp, mx_resp_len,
0 /* timeout_sec */, NULL, noisy, verbose);
destruct_scsi_pt_obj(ptvp);
return ret;
}
/* Invokes a SCSI INQUIRY command and yields the response. Returns 0 when
* successful, various SG_LIB_CAT_* positive values or -1 -> other errors.
* The CMDDT field is obsolete in the INQUIRY cdb (since spc3r16 in 2003) so
* an argument to set it has been removed (use the REPORT SUPPORTED OPERATION
* CODES command instead). Adds the ability to set the command abort timeout
* and the ability to report the residual count. If timeout_secs is zero
* or less the default command abort timeout (60 seconds) is used.
* If residp is non-NULL then the residual value is written where residp
* points. A residual value of 0 implies mx_resp_len bytes have be written
* where resp points. If the residual value equals mx_resp_len then no
* bytes have been written. */
int
sg_ll_inquiry_v2(int sg_fd, bool evpd, int pg_op, void * resp,
int mx_resp_len, int timeout_secs, int * residp,
bool noisy, int verbose)
{
int ret;
struct sg_pt_base * ptvp;
ptvp = construct_scsi_pt_obj_with_fd(sg_fd, verbose);
if (NULL == ptvp)
return sg_convert_errno(ENOMEM);
ret = sg_ll_inquiry_com(ptvp, false, evpd, pg_op, resp, mx_resp_len,
timeout_secs, residp, noisy, verbose);
destruct_scsi_pt_obj(ptvp);
return ret;
}
