On Mon, 02 Jul 2007 11:22:09 +0200
Juan Antonio Martinez <[email protected]> wrote:
> I've reported this error to Fedora Bugzilla:
>
> http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=246406
>
> In sort: to use libieee1284 I need to disable ppdev usage with
> kernel 2.6.21. Kernel 2.6.20 works fine
>
> [root@drake char]# uname -a
> Linux drake.micasa.es 2.6.21-1.3228.fc7 #1 SMP Tue Jun 12 15:37:31 EDT
> 2007 i686 athlon i386 GNU/Linux
>
> By doing "echo disallow method ppdev > /etc/ieee1284.conf" everything
> works fine on both kernels
>
> Seems affect several distributions, not Fedora specific:
> http://bugs.archlinux.org/task/7438
> http://sourceforge.net/tracker/index.php?func=detail&aid=1739643&group_id=29314&atid=395778
> http://www.digipedia.pl/man/libieee1284.3.html
>
> Not sure if a kernel bug or a library one, so my apologizes if
> this is not the propper list
>
Not much has changed in ppdev.c. Possibly this:
commit da6752964290567a6b4ea180d1becda75e810e87
Author: David Brownell <[email protected]>
Date: Tue May 8 00:27:42 2007 -0700
layered parport code uses parport->dev
Update some of the layered parport_driver code to use parport->dev:
- i2c-parport (parent of i2c_adapter)
- spi_butterfly (parent of spi_master, allowing cruft removal)
- lp (creating class_device)
- ppdev (parent of parportN device)
- tipar (creating class_device)
There are still drivers that should be updated, like some of the input
drivers; but they won't be any worse off than they are today.
broke something.
Can you test a kernel with this change applied?
--- a/drivers/char/ppdev.c~a
+++ a/drivers/char/ppdev.c
@@ -751,7 +751,7 @@ static const struct file_operations pp_f
static void pp_attach(struct parport *port)
{
- device_create(ppdev_class, port->dev, MKDEV(PP_MAJOR, port->number),
+ device_create(ppdev_class, NULL, MKDEV(PP_MAJOR, port->number),
"parport%d", port->number);
}
_
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