INT 15 - Compaq SLT/286 - Modify Power Conservation/Modem Configuration
AX = 4601h
BL = system inactivity timeout (1-21 minutes)
= FFh do not change
CL = video display inactivity timeout (1-63 minutes)
= FFh do not change
DL = current fixed disk drive inactivity timeout (1-21 minutes)
= FFh do not change
DH = 00h turn modem OFF
= 01h turn modem ON
= FFh do not change modem state
Return: CF clear if successful
AH = 00h
BL = current system inactivity timeout (1-21 minutes)
CL = current video display inactivity timeout (1-63 minutes)
DL = current fixed disk drive inactivity timeout (1-21 minutes)
DH = FFh modem state unchanged
= 00h modem turned OFF
= 01h modem turned ON
CF set on error
AH = 01h input is out of range
= 02h - No modem present
SeeAlso: INT 77

See also: 154600

154601 - Compaq SLT/286 - Modify Power Conservation/Modem Configuration