diff options
| author | wollman <wollman@FreeBSD.org> | 1998-02-01 04:13:13 +0000 |
|---|---|---|
| committer | wollman <wollman@FreeBSD.org> | 1998-02-01 04:13:13 +0000 |
| commit | f3d9b9b0a498f13f1dfbbc21093a6476b25a726f (patch) | |
| tree | 32115aab458b73bbbb04f8dfd6b019788f244ef7 | |
| parent | ef6e7f7b8d227ee0ee75d6620fcc51a7e3343d0f (diff) | |
| download | FreeBSD-src-f3d9b9b0a498f13f1dfbbc21093a6476b25a726f.zip FreeBSD-src-f3d9b9b0a498f13f1dfbbc21093a6476b25a726f.tar.gz | |
Add a new ioctl, SCSIOCGETDEVINFO, which takes a device ID and uses it
to look up information about that device. Right now, all it does
is give back the dev_t for the device, if known, since that's all
I needed, but hopefully the SCSI mavens will come up with a more generally
useful structure.
| -rw-r--r-- | sys/scsi/scsi_ioctl.c | 18 | ||||
| -rw-r--r-- | sys/sys/scsiio.h | 10 |
2 files changed, 25 insertions, 3 deletions
diff --git a/sys/scsi/scsi_ioctl.c b/sys/scsi/scsi_ioctl.c index ceafe78..8e340f7 100644 --- a/sys/scsi/scsi_ioctl.c +++ b/sys/scsi/scsi_ioctl.c @@ -36,7 +36,7 @@ * SUCH DAMAGE. *End copyright * - * $Id: scsi_ioctl.c,v 1.26 1997/09/02 20:06:34 bde Exp $ + * $Id: scsi_ioctl.c,v 1.27 1997/12/02 21:07:01 phk Exp $ * * */ @@ -256,7 +256,7 @@ struct proc *p, struct scsi_link *sc_link) /* If we can't write the device we can't permit much: */ - if (cmd != SCIOCIDENTIFY && !(flags & FWRITE)) + if (cmd != SCIOCIDENTIFY && cmd != SCSIOCGETDEVINFO&& !(flags & FWRITE)) return EACCES; SC_DEBUG(sc_link,SDEV_DB2,("scsi_do_ioctl(0x%x)\n",cmd)); @@ -363,6 +363,20 @@ struct proc *p, struct scsi_link *sc_link) sca->lun = sc_link->lun; break; } + case SCIOCGETDEVINFO: + { + struct scsi_devinfo *scd = (struct scsi_devinfo *)addr; + struct scsi_link *scl; + scl = scsi_link_get(scd->addr.bus, scd->addr.target, + scd->addr.lun); + if (scl != 0) { + scd->dev = scl->dev; + ret = 0; + } else { + ret = ENXIO; + } + break; + } default: ret = ENOTTY; diff --git a/sys/sys/scsiio.h b/sys/sys/scsiio.h index 34842bb..af6d2e0 100644 --- a/sys/sys/scsiio.h +++ b/sys/sys/scsiio.h @@ -1,5 +1,5 @@ /* - * $Id$ + * $Id: scsiio.h,v 1.8 1997/02/22 09:45:49 peter Exp $ */ #ifndef _SYS_SCSIIO_H_ #define _SYS_SCSIIO_H_ @@ -67,4 +67,12 @@ struct scsi_addr { #define SCIOCFREEZETHAW _IOW('Q', 11, int) /* Freeze SCSI for some seconds */ #define SCIOCWAITTHAW _IO('Q', 12) /* Wait for SCSI to thaw */ +struct scsi_getdevinfo { + struct scsi_addr addr; + dev_t dev; +}; + +#define SCIOCGETDEVINFO _IOWR('Q', 13, struct scsi_getdevinfo) + + #endif /* !_SYS_SCSIIO_H_ */ |
