I'm pretty sure this is also the code that fails with a pci express serial
card if you define the irq and i/o port in the kernel serial.h header with
earlier kernels.
On Sat, 26 Jun 2010, Chris Brannon wrote:
> Apparently, what we have isn't working for some people, as of the 2.6.34
> kernel.
> Here's the piece of code from src/serialio.c which is failing:
>
> if (synth_request_region(ser->port, 8)) {
> /* try to take it back. */
> printk("Ports not available, trying to steal them\n");
> __release_region(&ioport_resource, ser->port, 8);
> if (synth_request_region(ser->port, 8))
> return NULL;
> }
>
> -- Chris
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