Re: Device Drivers and all for one interrupts, can it be done.
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Do you really have multiple serial drivers? Is it not several instances of
the same driver? So the serial interrupt handler thread (IST) gets created
at XXX_Init time. The IST will then detect which serial port requires
service in the IST and then goes off and service it.
A bit about nomenclature:
An interrupt vector is the location that gets executed when an interrupt
exception occurs, on an ARM this is eitehr the IRQ or FIQ vector. In CE this
will then leap magnificently into the InterruptHandler, which search for the
cause on the interrupt. It finds is it then tells the kernel via a System
Interrupt number (SysIntr). The kernel will then kick any events associated
with that SysIntr (via interruptinitialize).
Geoff
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Relevant Pages
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(Linux-Kernel) |
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