comments added

git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@1485 6ac86273-5f31-0410-b378-82cca8765d1b
This commit is contained in:
Kenneth J Davis 2009-07-13 02:35:05 +00:00
parent 44e249282f
commit 5c8fb2fbec

View File

@ -27,12 +27,6 @@
/* Cambridge, MA 02139, USA. */ /* Cambridge, MA 02139, USA. */
/****************************************************************/ /****************************************************************/
#ifdef MAIN
#ifdef VERSION_STRINGS
static BYTE *device_hRcsId =
"$Id$";
#endif
#endif
/* /*
* Status Word Bits * Status Word Bits
@ -245,16 +239,16 @@ typedef struct ddtstruct {
} ddt; } ddt;
/* description flag bits */ /* description flag bits */
#define DF_FIXED 0x001 #define DF_FIXED 0x001 /* fixed media, ie hard drive */
#define DF_CHANGELINE 0x002 #define DF_CHANGELINE 0x002 /* door lock or disk change detection reported as supported */
#define DF_CURBPBLOCK 0x004 #define DF_CURBPBLOCK 0x004 /* current BPB locked, use existing BPB instead of building one */
#define DF_SAMESIZE 0x008 #define DF_SAMESIZE 0x008 /* all sectors in a track are the same size */
#define DF_MULTLOG 0x010 #define DF_MULTLOG 0x010 /* physical drive represents multiple logical ones, eg A: & B: */
#define DF_CURLOG 0x020 #define DF_CURLOG 0x020 /* active (current) logical drive for this physical drive */
#define DF_DISKCHANGE 0x040 #define DF_DISKCHANGE 0x040 /* disk change was detected */
#define DF_DPCHANGED 0x080 #define DF_DPCHANGED 0x080 /* device parameters changed */
#define DF_REFORMAT 0x100 #define DF_REFORMAT 0x100 /* disk formatted so BPB has changed */
#define DF_NOACCESS 0x200 #define DF_NOACCESS 0x200 /* don't allow access (read or write) to fixed media */
/* freedos specific flag bits */ /* freedos specific flag bits */
#define DF_LBA 0x400 #define DF_LBA 0x400
#define DF_WRTVERIFY 0x800 #define DF_WRTVERIFY 0x800