John Que wrote:
I had noticed that the zd1211 driver does call request_irq() in zd1205_open(), file zd1205.c;

Look at it in context:

#ifndef HOST_IF_USB     
if ((rc = request_irq(dev->irq, &zd1205_intr, SA_SHIRQ, dev->name, dev)) != 0) {
                printk(KERN_ERR "zd1205: failed to request_irq\n");   

The ZD1211 vendor driver appears to be an adapted version of another ZyDAS driver which supports a PCI wifi chip, presumably there are some similarities. There are many such headaches when trying to read through this driver...

request_irq never happens because HOST_IF_USB gets defined.

Daniel

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