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Copyright 1991 David Jurgens |
INT 21,44,3 / IOCTL,3 - Write to Character Device
AH = 44h
AL = 03
BX = handle
CX = number of bytes to send
DS:DX = pointer to data buffer
on return
AX = number of bytes written if CF clear
= error code if CF set (see DOS ERROR CODES)
- see bit 14 if IOCTL function 00h to determine if
driver can support IOCTL control strings
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| Esc or Alt-X to exit |
int 21,44,3 |
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