Subject: Re: [linux-usb-devel] [PATCH RFC] ZyDAS ZD1211 USB-WLAN driver

From: Daniel Drake <[email-masked]>
Date: Sun, 04 Jun 2006 22:45:47 +0100

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