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>well if the only thing the card does is issue an interrupt and fill a
>buffer you will be forced to look at that buffer to know who triggert >the interrupt. depending on the data-buffer size to read it might be >the simplest method of copying both data areas from the card. But to >give you any resonable hint a bit more info on this hardware would help... >shure the thing can't access more than one IRQ line ?? many multiport >cards like multiport ethernet cards can assigne individual interrupts >to the devices. I think in PCI configuarion registers, there is
just only one IRQ Line.
You idea sounds interesting. If there are two, I want to know how to make
the port related with Irq. In normal linux, it seems that you can have
more
parameter in the ISR.( I need to study it
later)
BTW, I am confused with one thing. In my
drvier, if I use
pci_read_config_byte(dev,PCI_INTERRUPT_LINE,&irq)
then the irq = 5, but if I use irq = dev->irq, then I get
16.
It is so confused. At first I think 5 is the right one, but if I use
5,
then NONE ISR is triggered. if I use later, anything is
OK.
I still don't know the reason.
Liu
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