Re: How-to?
Philip Blundell (Philip.Blundell@pobox.com)
Fri, 02 Jul 1999 19:34:47 +0100
>> Also, in the interest of debugging the PCI card (it is a brand new
>> card), I wanted to access it in usermode.
>
>Well, I'm not sure how to do this, but the next best thing is
>to provide simple ioctl()s for reading and writing the PLX registers
>and the local bus, then call them from user space. But even
>kernel-level debugging is fairly quick and easy given printk()
>and the ability to insert and remove kernel modules.
You can look up the address of the card in /proc and then use inb/outb or
mmap(/dev/mem) to poke around with it.
p.
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