Accessing a USB device

[Charles Hallenbeck]

Hi Ralph,

Nope, not this time. IRQ 5 is used only by three instances of uhci_hcd, 
and although it becomes disabled shortly after bootup, the USB interface 
continues to work anyway. My IRQ assignments look like this:

            CPU0
   0:    2094923    IO-APIC-edge  timer
   1:       2832    IO-APIC-edge  i8042
   2:          0          XT-PIC  cascade
   5:     100000   IO-APIC-level  uhci_hcd, uhci_hcd, uhci_hcd
   8:          4    IO-APIC-edge  rtc
  14:      10277    IO-APIC-edge  ide0
  15:      18332    IO-APIC-edge  ide1
  16:     258202   IO-APIC-level  ohci_hcd, hsfpcibasic2
  17:        329   IO-APIC-level  ohci_hcd, EMU10K1
  18:       1183   IO-APIC-level  ehci_hcd, eth0
  19:    2049001   IO-APIC-level  wctdm
NMI:          0 
LOC:    2094638 
ERR:          0
MIS:          0

I'm not sure why there should be three instances of uhci_hcd, but 
otherwise this layout looks okay to me. The important thing for me is 
that the Digium wctdm card does not have to share an interrupt with 
anybody. That seems critical to asterisk.

Chuck



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