HelenOS sources
SR_INT 132 kernel/genarch/src/drivers/via-cuda/cuda.c pio_write_8(&dev->ier, IER_SET | SR_INT);
SR_INT 148 kernel/genarch/src/drivers/via-cuda/cuda.c if ((ifr & SR_INT) == 0)
SR_INT 167 kernel/genarch/src/drivers/via-cuda/cuda.c pio_write_8(&instance->cuda->ifr, SR_INT);
SR_INT 88 uspace/drv/bus/adb/cuda_adb/cuda_adb.c .value = SR_INT,
SR_INT 256 uspace/drv/bus/adb/cuda_adb/cuda_adb.c pio_write_8(&cuda->regs->ier, IER_SET | SR_INT);
SR_INT 277 uspace/drv/bus/adb/cuda_adb/cuda_adb.c pio_write_8(&cuda->regs->ifr, SR_INT);
HelenOS homepage, sources at GitHub