From mboxrd@z Thu Jan  1 00:00:00 1970
From: greg@kroah.com (Greg KH)
Date: Mon, 18 Aug 2014 03:35:03 -0500
Subject: Linux PCI driver.
In-Reply-To: <53F1B054.2020100@gmail.com>
References: <53F1B054.2020100@gmail.com>
Message-ID: <20140818083503.GA1550@kroah.com>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org

On Mon, Aug 18, 2014 at 09:50:44AM +0200, testlaster wrote:
> Hey Guys
> 
> Im writing a PCI driver in Linux ( Lubuntu ). Now its not an entire 
> driver its really just a little program that will latch onto a space of 
> ram and dump the entire content of the ram into a file.
> I have done this before in a Unix/Linux based OS and it took me quite a 
> while to figure it out.
> 
> So at startup the configuration for the PCI is already done so I wont 
> have to do any of that myself.
> I really just need to set a pointer to a register.
> 
> My problem is that I cant find the functions to do that for linux.
> I cant find similar functions to things like :
> PCI_ATTACH()
> pci_attach_device();
> mmap_device_memory();
> 
> I think that is really all I need at the moment.
> Anybody have some ideas of where I can start looking?

Have you read the book, Linux Device Drivers, 3rd edition, it's free
online and has a whole chapter on PCI that should answer these questions
for you.

If not, please feel free to post your code and we will be glad to review
it.

thanks,

greg k-h