Int 13/AH=2Eh

AH = 2Eh
BX = flush count

Return:
AX = status (0000h successful)

Desc: Specify how many dirty sectors the cache should write after each flush interval (see AH=25h"QUICKCACHE") when buffered writes are enabled

See Also: AH=21h"QUICKCACHE" - AH=25h"QUICKCACHE" - AH=2Ch