linux-kernel - Re: appletouch regression

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Date:	Sat, 18 Oct 2008 13:32:56 -0700
From:	"Justin Mattock" <justinmattock@...il.com>
To:	"Jiri Slaby" <jirislaby@...il.com>
Cc:	"Steven Noonan" <steven@...inklabs.net>,
	"Jiri Kosina" <jkosina@...e.cz>, "Sven Anders" <anders@...uras.de>,
	linux-kernel@...r.kernel.org
Subject: Re: appletouch regression

On Sat, Oct 18, 2008 at 12:56 PM, Jiri Slaby <jirislaby@...il.com> wrote:
> Steven Noonan wrote:
>> On Sat, Oct 18, 2008 at 10:29 AM, Justin Mattock
>> <justinmattock@...il.com> wrote:
>>> On Sat, Oct 18, 2008 at 9:44 AM, Steven Noonan <steven@...inklabs.net> wrote:
>>>> 2008/10/18 Sven Anders <anders@...uras.de>:
>>>>> Steven Noonan schrieb:
>>>>>> It seems that the appletouch driver is (sporadically) not detecting my
>>>>>> Apple Trackpad anymore on Linus' current tree (2.6.27-05577-g0cfd810).
>>>>>> When it is misbehaving, it doesn't have any /dev/input/event* entry
>>>>>> that corresponds to the input from appletouch, and dmesg -should- show
>>>>>> the following, as 2.6.27.1 does, but does not:
>>>>>>
>>>>>> appletouch: Geyser mode initialized.
>>>>>> input: appletouch as /class/input/input4
>>>>>> usbcore: registered new interface driver appletouch
>>>>>> appletouch: 17" model detected
>>>>>>
>>>>>> On the current tree, occasionally all I get is:
>>>>>>
>>>>>> usbcore: registered new interface driver appletouch
> [...]
>> Any ideas, gentlemen?
>
> Yeah, I see the problem. The device is grabbed by the hid bus and not
> released even if apple driver says ENODEV (this is expected behaviour
> and noted in the driver).
>
> Could you try this patch? (Not ready for merge, it needs to be cleaned
> up.)
>
> ---
>  drivers/hid/hid-core.c |   34 ++++++++++++++++++++++++++++++++++
>  1 files changed, 34 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
> index 8a7d9db..94cf1db 100644
> --- a/drivers/hid/hid-core.c
> +++ b/drivers/hid/hid-core.c
> @@ -1539,6 +1539,34 @@ static const struct hid_device_id hid_ignore_list[] = {
>        { }
>  };
>
> +static const struct hid_device_id hid_mouse_ignore_list[] = {
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
> +       { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
> +       { }
> +};
> +
> +#include <linux/usb.h>
> +
>  static bool hid_ignore(struct hid_device *hdev)
>  {
>        switch (hdev->vendor) {
> @@ -1555,6 +1583,12 @@ static bool hid_ignore(struct hid_device *hdev)
>                break;
>        }
>
> +       if (hdev->bus == BUS_USB && to_usb_interface(hdev->dev.parent)->
> +                       cur_altsetting->desc.bInterfaceProtocol ==
> +                       USB_INTERFACE_PROTOCOL_MOUSE &&
> +                       hid_match_id(hdev, hid_mouse_ignore_list))
> +               return true;
> +
>        return !!hid_match_id(hdev, hid_ignore_list);
>  }
>
> --
> 1.6.0.2
>
>

Applied and can confirm
my appletouchpad is alive and reacting,
Thanks a lot man.

regards;

-- 
Justin P. Mattock
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