SIOC_INQUIRY
This IOCTL command collects the inquiry data from the device.
The data structure is
struct inquiry_data {
uint qual :3, /* peripheral qualifier */
type :5; /* device type */
uint rm :1, /* removable medium */
mod :7; /* device type modifier */
uint iso :2, /* ISO version */
ecma :3, /* EMCA version */
ansi :3; /* ANSI version */
uint aenc :1, /* asynchronous event notification */
trmiop :1, /* terminate I/O process message */
:2, /* reserved */
rdf :4; /* response data format */
unchar len; /* additional length */
unchar resvd1; /* reserved */
uint :4, /* reserved */
mchngr :1, /* medium changer mode (SCSI-3 only) */
:3; /* reserved */
uint reladr :1, /* relative addressing */
wbus32 :1, /* 32-bit wide data transfers */
wbus16 :1, /* 16-bit wide data transfers */
sync :1, /* synchronous data transfers */
linked :1, /* linked commands */
:1, /* reserved */
cmdque :1, /* command queueing */
sftre :1; /* soft reset */
unchar vid[8]; /* vendor ID */
unchar pid[16]; /* product ID */
unchar revision[4]; /* product revision level */
unchar vendor1[20]; /* vendor specific */
unchar resvd2[40]; /* reserve */
unchar vendor2[31]; /* vendor specific (padded to 127) */
};An example of the SIOC_INQUIRY command is
#include <sys/IBM_tape.h>
char vid[9];
char pid[17];
char revision[5];
struct inquiry_data inqdata;
printf("Issuing inquiry...\n");
memset(&inqdata, 0, sizeof(struct inquiry_data));
if (!ioctl (fd, SIOC_INQUIRY, &inqdata)) {
printf ("The SIOC_INQUIRY ioctl succeeded\n");
printf ("\nThe inquiry data is:\n");
/*-
* Just a dump byte won't work because of the compiler
* bit field mapping
-*/
/* print out structure data field */
printf("\nInquiry Data:\n");
printf("Peripheral Qualifer-----------------0x%02x\n", inqdata.qual);
printf("Peripheral Device Type--------------0x%02x\n", inqdata.type);
printf("Removal Medium Bit------------------%d\n", inqdata.rm);
printf("Device Type Modifier----------------0x%02x\n", inqdata.mod);
printf("ISO version-------------------------0x%02x\n", inqdata.iso);
printf("ECMA version------------------------0x%02x\n", inqdata.ecma);
printf("ANSI version------------------------0x%02x\n", inqdata.ansi);
printf("Asynchronous Event Notification Bit-%d\n", inqdata.aenc);
printf("Terminate I/O Process Message Bit---%d\n", inqdata.trmiop);
printf("Response Data Format----------------0x%02x\n", inqdata.rdf);
printf("Additional Length-------------------0x%02x\n", inqdata.len);
printf("Medium Changer Mode-----------------0x%02x\n", inqdata.mchngr);
printf("Relative Addressing Bit-------------%d\n", inqdata.reladr);
printf("32 Bit Wide Data Transfers Bit------%d\n", inqdata.wbus32);
printf("16 Bit Wide Data Transfers Bit------%d\n", inqdata.wbus16);
printf("Synchronous Data Transfers Bit------%d\n", inqdata.sync);
printf("Linked Commands Bit-----------------%d\n", inqdata.linked);
printf("Command Queueing Bit----------------%d\n", inqdata.cmdque);
printf("Soft Reset Bit----------------------%d\n", inqdata.sftre);
strncpy(vid, inqdata.vid, 8);
vid[8] = '\0';
strncpy(pid, inqdata.pid, 16);
pid[16] = '\0';
strncpy(revision, inqdata.revision, 4);
revision[4] = '\0';
printf("Vendor ID-----------------------------%s\n", vid);
printf("Product ID----------------------------%s\n", pid);
printf("Product Revision Level----------------%s\n", revision);
dump_bytes(inqdata.vendor1, 20, "vendor1");
dump_bytes(inqdata.vendor2, 31, "vendor2");
}
else {
perror ("The SIOC_INQUIRY ioctl failed");
sioc_request_sense();
}