2011-06-15 07:16:53

by Ortwin Glück

[permalink] [raw]
Subject: 2.6.39.1 input regression

Hi Greg,

This patch in 2.6.39.1 breaks magicmouse support for me completely.
a5ccaac64c17ce3cc1878a6d479a6f1b16092c24
HID: magicmouse: ignore 'ivalid report id' while switching modes

The device will no longer work at all:
magicmouse 0005:05AC:030D.0005: input,hidraw2: BLUETOOTH HID v0.84 Mouse
[gandalf mouse] on 7C:6D:62:9F:DB:2D
magicmouse 0005:05AC:030D.0005: unable to request touch data (2)

Fine in previous kernels.

Thanks.

Ortwin


2011-06-15 15:29:26

by Greg KH

[permalink] [raw]
Subject: Re: 2.6.39.1 input regression

On Wed, Jun 15, 2011 at 09:16:47AM +0200, Ortwin Gl?ck wrote:
> Hi Greg,
>
> This patch in 2.6.39.1 breaks magicmouse support for me completely.
> a5ccaac64c17ce3cc1878a6d479a6f1b16092c24
> HID: magicmouse: ignore 'ivalid report id' while switching modes
>
> The device will no longer work at all:
> magicmouse 0005:05AC:030D.0005: input,hidraw2: BLUETOOTH HID v0.84 Mouse
> [gandalf mouse] on 7C:6D:62:9F:DB:2D
> magicmouse 0005:05AC:030D.0005: unable to request touch data (2)
>
> Fine in previous kernels.

This has been discussed already, and it should be fixed in Linus's tree
right now, right?

If so, can someone please send [email protected] the proper fix for
this?

thanks,

greg k-h

2011-06-16 07:44:11

by Ortwin Glück

[permalink] [raw]
Subject: Re: 2.6.39.1 input regression



On 15.06.2011 17:03, Greg KH wrote:
> On Wed, Jun 15, 2011 at 09:16:47AM +0200, Ortwin Gl?ck wrote:
>> Hi Greg,
>>
>> This patch in 2.6.39.1 breaks magicmouse support for me completely.
>> a5ccaac64c17ce3cc1878a6d479a6f1b16092c24
>> HID: magicmouse: ignore 'ivalid report id' while switching modes
>>
>> The device will no longer work at all:
>> magicmouse 0005:05AC:030D.0005: input,hidraw2: BLUETOOTH HID v0.84 Mouse
>> [gandalf mouse] on 7C:6D:62:9F:DB:2D
>> magicmouse 0005:05AC:030D.0005: unable to request touch data (2)
>>
>> Fine in previous kernels.
>
> This has been discussed already, and it should be fixed in Linus's tree
> right now, right?
>
> If so, can someone please send [email protected] the proper fix for
> this?
>
> thanks,
>
> greg k-h

If it's in Linus' tree then I can't find it. To me this issue just looks
like a silly typo anyway:

- if (ret != sizeof(feature)) {
+ if (ret != -EIO) {
hid_err(hdev, "unable to request touch data (%d)\n", ret);
goto err_stop_hw;
}

Should this not be (ret == -EIO)?

Ortwin

2011-06-16 10:03:40

by Jiri Kosina

[permalink] [raw]
Subject: Re: 2.6.39.1 input regression

On Wed, 15 Jun 2011, Greg KH wrote:

> > This patch in 2.6.39.1 breaks magicmouse support for me completely.
> > a5ccaac64c17ce3cc1878a6d479a6f1b16092c24
> > HID: magicmouse: ignore 'ivalid report id' while switching modes
> >
> > The device will no longer work at all:
> > magicmouse 0005:05AC:030D.0005: input,hidraw2: BLUETOOTH HID v0.84 Mouse
> > [gandalf mouse] on 7C:6D:62:9F:DB:2D
> > magicmouse 0005:05AC:030D.0005: unable to request touch data (2)
> >
> > Fine in previous kernels.
>
> This has been discussed already, and it should be fixed in Linus's tree
> right now, right?

It's not yet -- apparently the symptoms aer different for different
people, probably because of differences in firmware.

Plus one of the testers is now quite busy, so the turnaround was rather
slow.

I already have patch in my tree that should cover all the cases. Will be
sending pull request to Linus likely today.

> If so, can someone please send [email protected] the proper fix for
> this?

Yes, I will then send the patch stable-way as well.

--
Jiri Kosina
SUSE Labs