$ cat /proc/interrupts
           CPU0       
 19:      40108   MPIC 1    Level     ide0
 20:      67698   MPIC 1    Level     ide1
 25:     173176   MPIC 1    Level     VIA-PMU
 26:        131   MPIC 1    Level     keywest i2c
 27:      15813   MPIC 1    Level     ohci_hcd:usb1
 28:    1308892   MPIC 1    Level     ohci_hcd:usb2
 30:       1358   MPIC 1    Edge      PMac Output
 31:          1   MPIC 1    Edge      PMac Input
 40:          2   MPIC 1    Level     ohci1394
 41:       7258   MPIC 1    Level     eth0
 42:          0   MPIC 1    Level     keywest i2c
 47:       8400   MPIC 1    Level     GPIO1 ADB
 48:     453938   MPIC 1    Level     radeon@pci:0000:00:10.0
 57:      13623   MPIC 1    Level     eth1
 58:          1   MPIC 1    Level     yenta
 61:          1   MPIC 1    Edge      Sound Headphone Detection
BAD:          0