{{page>en:templates:dosint}} ====== Int 21H, AH=44H, AL=01H ====== ===== Version ===== 2 and higher ===== Brief ===== SET DEVICE INFORMATION ===== Family API ===== ===== Input ===== AX = 4401h BX = handle (must refer to character device) DX = device information word (see #01423) (DH must be zero for DOS version prior to 6.x) ===== Return ===== CF clear if successful CF set on error AX = error code (01h,05h,06h,0Dh) (see #01680 at AH=59h/BX=0000h) ===== Macro ===== ===== Notes ===== this function was not supported by Digital Research's DOS Plus ===== See also ===== AX=4400h,INT 2F/AX=122Bh ===== Note ===== Text based on [[http://www.cs.cmu.edu/~ralf/files.html|Ralf Brown Interrupt List Release 61]] {{page>en:templates:int}} {{page>en:templates:fapi}}