HelenOS sources

TTY_ISA_IRQ       114 kernel/arch/mips32/src/mach/malta/malta.c 	tty_instance = ns16550_init((ioport8_t *) TTY_BASE, 0, TTY_ISA_IRQ,
TTY_ISA_IRQ       148 kernel/arch/mips32/src/mach/malta/malta.c 			i8259_enable_irqs(1 << TTY_ISA_IRQ);