diff options
| author | dufault <dufault@FreeBSD.org> | 1995-03-21 11:21:37 +0000 |
|---|---|---|
| committer | dufault <dufault@FreeBSD.org> | 1995-03-21 11:21:37 +0000 |
| commit | 0015f4c42bcc7da928de9f828fdbd46603010eca (patch) | |
| tree | 66859dfdccd28b4c903d0f86f74bc37da2203eb8 | |
| parent | 274a8d5ee2f5e2f80b359cbb60feedce7879b4fe (diff) | |
| download | FreeBSD-src-0015f4c42bcc7da928de9f828fdbd46603010eca.zip FreeBSD-src-0015f4c42bcc7da928de9f828fdbd46603010eca.tar.gz | |
Julian's suport of compressed tape drives.
| -rw-r--r-- | sys/sys/mtio.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/sys/sys/mtio.h b/sys/sys/mtio.h index 0474239..8dbdd8b 100644 --- a/sys/sys/mtio.h +++ b/sys/sys/mtio.h @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)mtio.h 8.1 (Berkeley) 6/2/93 - * $Id: mtio.h,v 1.3 1994/08/02 07:53:17 davidg Exp $ + * $Id: mtio.h,v 1.4 1994/10/28 13:19:42 jkh Exp $ */ #ifndef _SYS_MTIO_H_ @@ -68,7 +68,7 @@ struct mtop { #define MTSETBSIZ 10 -/* Set density values for device. Thye aredefined in the SCSI II spec */ +/* Set density values for device. They are defined in the SCSI II spec */ /* and range from 0 to 0x17. Sets the value for the openned mode only */ #define MTSETDNSTY 11 @@ -76,7 +76,9 @@ struct mtop { /* ** Tape erase function - AKL: Andreas Klemm <andreas@knobel.gun.de> */ -#define MTERASE 12 +#define MTERASE 12 /* erase to EOM */ +#define MTEOD 13 /* Space to EOM *//* lost the code for this */ +#define MTCOMP 14 /* select compression mode 0=off, 1=def */ #endif @@ -90,8 +92,9 @@ struct mtget { /* end device-dependent registers */ short mt_resid; /* residual count */ #if defined (__FreeBSD__) - daddr_t mt_blksiz; /* presently operatin blocksize */ - daddr_t mt_density; /* presently operatin density */ + daddr_t mt_blksiz; /* presently operating blocksize */ + daddr_t mt_density; /* presently operating density */ + daddr_t mt_comp; /* presently operating compresion */ daddr_t mt_blksiz0; /* blocksize for mode 0 */ daddr_t mt_blksiz1; /* blocksize for mode 1 */ daddr_t mt_blksiz2; /* blocksize for mode 2 */ @@ -100,8 +103,12 @@ struct mtget { daddr_t mt_density1; /* density for mode 1 */ daddr_t mt_density2; /* density for mode 2 */ daddr_t mt_density3; /* density for mode 3 */ +/* the following are not yet implemented */ + u_char mt_comp0; /* compression type for mode 0 */ + u_char mt_comp1; /* compression type for mode 1 */ + u_char mt_comp2; /* compression type for mode 2 */ + u_char mt_comp3; /* compression type for mode 3 */ #endif -/* the following two are not yet implemented */ daddr_t mt_fileno; /* file number of current position */ daddr_t mt_blkno; /* block number of current position */ /* end not yet implemented */ |
