Hi,

I had a little bit of sleep deprived free time to look into this a bit more.  
Changes are required to configure, drv/gpio.h and drv/gpio.c

I don't fully understand all of the ramifications of the changes I made (not 
enough time to read all the google hits) but it does compile which is a start.  
The changes made are likely incompatible with kernel 2.6 and older due to name 
changes of functions.

Here are the changes:

./configure -> Added an if for Kernel 3.2

drv/gpio.h -> Changed:

-#include <linux/autoconf.h>
+#include <generated/autoconf.h>

Autoconf had moved to generated as per a git commit in 2009:

https://forums.virtualbox.org/viewtopic.php?f=7&p=173096 (was the first useful 
result I could find relating to this)

drv/gpio.c

This one needed a few amendments first off, line 37:

-spinlock_t gpio_spinlock=SPIN_LOCK_UNLOCKED;
+spinlock_t gpio_spinlock;

The SPIN_LOCK_UNLOCKED doesn't seem to exist anymore, I'm not sure what 
ramifications not properly initialising this variable will have.  Fred/a C 
programmers input would be nice here.

After a bit more Googling other people suggest using:

DEFINE_SPINLOCK(gpio_spinlock); 

instead of the spinlock_t thing.  Both methods compile so I'm not sure which to 
use.

Line 403:

-  ioctl:gpio_ioctl,
+  unlocked_ioctl:gpio_ioctl,

The old ioctl function has been reworked to make it happy about multi-threaded 
ways of working.  As such ioctl doesn't really exist anymore and has been 
directly replaced with unlocked_ioctl.

http://stackoverflow.com/questions/5868908/using-ioctl-communication-between-kernel-mode-and-user-mode
http://unix.stackexchange.com/questions/4711/what-is-the-difference-between-ioctl-unlocked-ioctl-and-compat-ioctl

Several lines starting from 530:

-  while(((dev=pci_find_device(GPIO_CBOARDS_VENDOR_ID,
+  while(((dev=pci_get_device(GPIO_CBOARDS_VENDOR_ID,

Simple function rename by the looks of it, finding and replacing all the 
pci_find_device with pci_get_device gave me 4 hits.

Couldn't find any good Google pages for this one except for a guy saying, 
"replace pci_find_device with pci_get_device."

http://forums.xilinx.com/t5/PCI-Express/Linux-Driver-for-xapp1022-and-xapp1052/td-p/104903

Hopefully (message size limit pending) I've attached the three patch files with 
this email.

Hope this helps, I'll be trying to test with real hardware sometime tomorrow.

-----Original Message-----
From: [email protected] on behalf of Fred Gleason
Sent: Tue 20/11/2012 15:21
To: User discussion about the Rivendell Radio Automation System
Subject: Re: [RDD] Rivendell GPIO with Kernel 3.2+
 
On Nov 19, 2012, at 20:34 32, Wayne Merricks wrote:

> So heres the current error:
> 
> In file included from /root/gpio-1.1.0/drv/gpio.c:30:0:
> /root/gpio-1.1.0/drv/gpio.h:77:28: fatal error: linux/autoconf.h: No such 
> file or directory
> compilation terminated.

Lovely.  Sounds like it's time to load up a 3.2.x kernel and get it sorted.  
Perhaps a project for the long weekend...

Cheers!


|-------------------------------------------------------------------------|
| Frederick F. Gleason, Jr. |               Chief Developer               |
|                           |               Paravel Systems               |
|-------------------------------------------------------------------------|
|             Some changes are so slow, you don't notice them.            |
|             Others are so fast, they don't notice you.                  |
|                                          -- Anonymous                   |
|-------------------------------------------------------------------------|

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