Re: [Bug 15893] Alps: No edge-scrolling since 2.6.34-rc5

Re: [Bug 15893] Alps: No edge-scrolling since 2.6.34-rc5

[Dan Carpenter]

It looks like the "Acer Aspire One 532h" and the "HP Pavilion dm3" 
have the same signature but they behave differently.

As a result commit 5e28d8eb68 "Input: ALPS - add signature for HP 
Pavilion dm3 laptops" fixes things for dm3 but breaks the Acer Aspire
One 532h which was working (with a userspace driver maybe??).

Here is the relevant "i8042.debug" output from bz 15893:

drivers/input/serio/i8042.c: d4 -> i8042 (command) [535]
drivers/input/serio/i8042.c: e9 -> i8042 (parameter) [535]
drivers/input/serio/i8042.c: fa <- i8042 (interrupt, 1, 12) [535]
drivers/input/serio/i8042.c: 73 <- i8042 (interrupt, 1, 12) [536]
drivers/input/serio/i8042.c: 02 <- i8042 (interrupt, 1, 12) [536]
drivers/input/serio/i8042.c: 64 <- i8042 (interrupt, 1, 12) [536]

What's the right way to handle this?

regards,
dan carpenter

Re: [Bug 15893] Alps: No edge-scrolling since 2.6.34-rc5

[Chase Douglas]

Hi Dan,

On Mon, May 3, 2010 at 6:06 PM, Dan Carpenter <error27@gmail.com> wrote:
> It looks like the "Acer Aspire One 532h" and the "HP Pavilion dm3"
> have the same signature but they behave differently.
>
> As a result commit 5e28d8eb68 "Input: ALPS - add signature for HP
> Pavilion dm3 laptops" fixes things for dm3 but breaks the Acer Aspire
> One 532h which was working (with a userspace driver maybe??).

There were issues with this change, so it was reverted in the input
tree. Specifically, it seems that these devices operate under a
different protocol that the Linux driver does not understand yet.

As for when it should propagate to Linus' tree, Dmitry should have a
better idea.

I'm sorry the change has caused you issues.

-- Chase

Re: [Bug 15893] Alps: No edge-scrolling since 2.6.34-rc5

[Dan Carpenter]

On Mon, May 03, 2010 at 07:27:31PM -0400, Chase Douglas wrote:
> Hi Dan,
> 
> On Mon, May 3, 2010 at 6:06 PM, Dan Carpenter <error27@gmail.com> wrote:
> > It looks like the "Acer Aspire One 532h" and the "HP Pavilion dm3"
> > have the same signature but they behave differently.
> >
> > As a result commit 5e28d8eb68 "Input: ALPS - add signature for HP
> > Pavilion dm3 laptops" fixes things for dm3 but breaks the Acer Aspire
> > One 532h which was working (with a userspace driver maybe??).
> 
> There were issues with this change, so it was reverted in the input
> tree. Specifically, it seems that these devices operate under a
> different protocol that the Linux driver does not understand yet.
> 

OK.  Is there any info we need from Felix Zweig about the Acer so that
we don't run into this next time when we add support for the HP again?

It might be good to leave a comment in the source that these two conflict.

Anyway, thanks for the info.

regards,
dan carpenter

[Bug #15893] Alps: No edge-scrolling since 2.6.34-rc5

[Rafael J. Wysocki]

This message has been generated automatically as a part of a summary report
of recent regressions.

The following bug entry is on the current list of known regressions
from 2.6.33.  Please verify if it still should be listed and let the tracking team
know (either way).


Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=15893
Subject		: Alps: No edge-scrolling since 2.6.34-rc5
Submitter	: Felix Zweig <f.zweig@yahoo.de>
Date		: 2010-05-01 16:23 (4 days old)
Handled-By	:  Dan Carpenter <error27@gmail.com>
Patch		: https://bugzilla.kernel.org/attachment.cgi?id=26218