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Comment what the PF bit means in the MODE SELECT command, and

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define a scsipi_mode_page_header, which has the common fields
(page code and page length) of all mode pages.
This commit is contained in:
thorpej 2001-09-02 22:06:16 +00:00
parent cbf30c4010
commit 3ac8a43f8b
1 changed files with 8 additions and 4 deletions
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12
sys/dev/scsipi/scsipi_all.h
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@ -1,4 +1,4 @@
/* $NetBSD: scsipi_all.h,v 1.20 2001/09/02 19:35:21 thorpej Exp $ */
/* $NetBSD: scsipi_all.h,v 1.21 2001/09/02 22:06:16 thorpej Exp $ */
/*
* SCSI and SCSI-like general interface description
@ -110,7 +110,7 @@ struct scsipi_mode_select {
u_int8_t opcode;
u_int8_t byte2;
#define SMS_SP 0x01 /* save page */
#define SMS_PF 0x10
#define SMS_PF 0x10 /* page format (0 = SCSI-1, 1 = SCSI-2) */
u_int8_t unused;
union {
struct {
@ -312,9 +312,13 @@ struct scsipi_mode_header_big {
} __attribute__((packed));
/*
* Bits present in the page code octet of the returned mode page.
* This part is common to all mode pages.
*/
#define PGCODE_MASK 0x3f /* page code */
struct scsipi_mode_page_header {
u_int8_t pg_code; /* page code */
#define PGCODE_MASK 0x3f /* page code mask */
#define PGCODE_PS 0x80 /* page is savable */
u_int8_t pg_length; /* page length (not including hdr) */
} __attribute__((__packed__));
#endif /* _DEV_SCSIPI_SCSIPI_ALL_H_ */