Exit; Comments; Get/Set Idle Timeout [+] - Husky MP2500 Manual

Exit

Most of these functions return a status byte in AH, indicating success or
failure of the operation:
AH Operation
0 Successful
FF Failed

Comments

In the IBM PC-AT and IBM PS/2 BIOS, INT 15 is used to implement a
variety of enhancements (functions 80..91H).
On the MP2500, many of these functions are used to change the
subsequent behaviour of the MP2500; behaviour remains changed until the
next cold start, which restores the default (normal) behaviour. (A cold start
is produced by a power up in non-resume mode or after using emergency
breakout or losing all power.)

Get/set idle timeout [+]

Entry
Exit
Description
236
AH=63H AL=0 (get) or 1 (set)
BX=time (0..0E10H) if set
AH=status
BX=time (0..0E10H) if get
MP2500 will normally turn off automatically if left idle
(no keyboard input or communications activity) for 5
minutes.
Use this function to get or set the idle timeout:
BX Timeout
0 Do not timeout
1..0E10H 1 second to 3600 seconds
For optimum battery life, set the time as short as
possible while still convenient to the user and
application. It is not normally advisable to set BX to 0
(no timeout).
H MP2500 System Developer's Guide
USKY