|The Care and Feeding of ISDN4BSD|
|5.4.2 The Memory Address||5.4 Kernel Configuration for||5.4.4 The isic Driver|
5.4.3 The Interrupt Number
In the PC architecture, the following interrupts (IRQ2) are available for use by an add-on card:
IRQ normally used by may be used by us 0 timer/counter no 1 keyboard no 2 interrupt controller no 3 com2 if free, yes 4 com1 if free, yes 5 lpt2 if free, yes 6 floppy controller no 7 lpt1 not available for Teles S0/16 8 real time clock no 9 unassigned if free, yes 10 unassigned if free, yes 11 unassigned if free, yes 12 ps/2 mouse not recommended 13 floating point coprocessor no 14 IDE hard disk controller 1 not available for Teles S0/16 15 IDE hard disk controller 2 if free, yes
Again, for our example, lets assume you don't have a second printer adapter or anything else which might already use IRQ 5 installed, so we will use it for the Teles S0/16.