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AX = 4404h BL = drive number (00h = default, 01h = A:, etc) CX = 001Ah (length of data packet) DS:DX -> buffer for data packet (see #01536)
Return:
CF clear if successful AX = number of bytes actually transferred CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h)
Program: SFS (Secure FileSystem) is a shareware encrypting disk driver by Peter C. Gutmann
See Also: AX=4405h"SFS"
Format of SFS data packet: Offset Size Description (Table 01536) 00h 4 BYTEs signature string "SFS1" 04h WORD SFS unit number (0-based) 06h WORD drive on which the SFS volume is mounted 08h DWORD sector offset of logical volume from start of physical volume 0 if logical volume = physical volume
0Ch WORD flag:
00h = no disk mounted, 01h = disk mounted0Eh WORD flag:
00h read/write, 01h read-only 10h WORD quick-unmount hotkey (high byte = shift state, low = scan code) (see #00006) 12h WORD auto-unmount time in minutes, or 0000h if already expired, or FFFFh if not set 14h WORD time in minutes remaining before auto-unmount 16h WORD internal driver check code 0000h no error 0001h driver consistency check failed 0002h unit consistency check failed 18h WORD disk access mode 0000h BIOS 0001h IDE direct access 0002h SCSI direct access
Category: Disk I/O Enhancements - Int 21h - S
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