linux-kernel - Re: PCI Interrupt Problems Since Kernel-2.6.19

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Message-id: <47952F7B.7080506@shaw.ca>
Date:	Mon, 21 Jan 2008 17:49:15 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Lost Garden <yuanzhiqiang13@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: PCI Interrupt Problems Since Kernel-2.6.19

Lost Garden wrote:
>     I'm writing a driver for DVB-C PCI receiving cards these days and
> I found a tricky problem of interrupts. Since kernel-2.6.19 the
> interrupt handlers get rid of "struct pt_regs*" argument  and I think
> it will be easy for me to modify the driver to fit for the recent
> kernel.
>    I simply delete the "struct pt_regs *" argument of my interrupt
> handler and compile the driver again. But then I met a rather tricky
> problem. I cann't get the PCI intterrupt now! I found that the chip on
> the card actually had generate an interrupt and it should not be the
> hardware problem.
>   I'm get seriously confused. My driver works well under kernel-2.6.18
> but not generates a single interrupt signal when works above
> kernel-2.6.19.
>  Does anybody meet similar problems?
>  Sincerely
>  Yours, Lost Graden.
> 1,21. 2008

Need more details, like dmesg output. The source code of your driver 
would also be useful. One common problem is not calling 
pci_enable_device before requesting the interrupt..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@...pamshaw.ca
Home Page: http://www.roberthancock.com/

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