On Feb 18 2015 or thereabouts, jsanchezf wrote:
> > So could you run "sudo hid-recorder /dev/hidraw*" while making some
> > inputs on the touchpad?
> 
> Moving my finger and pressing the buttons on the touchpad seemed to show no
> events on hid-recorder. This is the full log for it:
> http://pastebin.com/YqZfkvLy
> 
> I just realised maybe you meant stylus input, so this is another log with
> some stylus input on it: http://pastebin.com/WSCY6Zq0
> 

Arf, it looks like the wacom driver ignores the debug interface.
Can you re-run hid-recorder on all interfaces with the stock 3.19 kernel
(or whichever you had that allowed the pen to work, but without my
latest patches).

Cheers,
Benjamin

> 
> 
> 2015-02-18 23:07 GMT+01:00 Benjamin Tissoires <benjamin.tissoi...@redhat.com
> >:
> 
> > On Feb 18 2015 or thereabouts, jsanchezf wrote:
> > > Hello Benjamin
> > >
> > > Following your instructions I managed to compile and install the wacom
> > > module properly (actually I had to run automake and autoconf to make it
> > all
> > > work but no problems after that).
> > >
> > > The stylus is working just fine now. Unfortunately the touch pad part
> > > doesn't seem to be working at all, and Xorg isn't mapping it to an event
> > > file like it used to. The stylus event file is not seeing any data when I
> > > touch the pad either.
> > >
> > > By the way, I'm actually using the USB variant of the Bamboo Pad.
> > >
> >
> > Yep, I know. That's why I asked you to test :)
> >
> > So could you run "sudo hid-recorder /dev/hidraw*" while making some
> > inputs on the touchpad?
> >
> > I'd like to check if your touchpad is actually switched to the debug
> > mode.
> >
> > Cheers,
> > Benjamin
> >
> > > Looking at the log file from Xorg, though, I can see how it's properly
> > > detecting the "Wacom USB Bamboo PAD Pen stylus" device and adding "Wacom
> > > USB Bamboo PAD Pen touch" as an extended input device. Here's the full
> > log:
> > > http://pastebin.com/k3SqtQN5
> > >
> > > I should mention I have no Xorg configuration done whatsoever besides the
> > > monitor resolution setup (which is not really relevant
> > >
> > >
> > >
> > > 2015-02-17 20:27 GMT+01:00 Benjamin Tissoires <
> > benjamin.tissoi...@redhat.com
> > > >:
> > >
> > > > The stylus of this device works just fine out of the box.
> > > > The touch is seen by default as a mouse with relative events and some
> > > > gestures.
> > > > Switching the default in raw mode allows us to retrieve the touch data
> > > > and have a consistent user experience accross all the multitouch
> > touchpads.
> > > >
> > > > Note that the buttons of this devices are reported through the touch
> > > > interface. There is no 'Pad' interface. It seemed more natural to have
> > > > the BTN_LEFT and BTN_RIGHT reported with the touch because they are
> > > > placed under the touch interface and it looks like they belong to the
> > > > touch part.
> > > >
> > > > Signed-off-by: Benjamin Tissoires <benjamin.tissoi...@redhat.com>
> > > > ---
> > > >
> > > > Hi,
> > > >
> > > > several things before we can merge this:
> > > >
> > > > Josep, Frederic:
> > > > Would you mind testing this patch with your Bamboo pads? I bought the
> > > > wireless
> > > > variant and the USB one has a different ProductID. Hopefully, it will
> > go
> > > > smoothly with the current patch.
> > > >
> > > > Peter, Ping, Jason:
> > > > Given the nature of the device, I did not exported the 2 buttons as a
> > > > separate
> > > > pad device.
> > > > Do you back me up with this choice?
> > > >
> > > > Jiri:
> > > > As mentioned to Josep and Frederic, this has not been tested against
> > the
> > > > USB
> > > > (wired) version of the device. So please wait at least for one
> > tested-by
> > > > before
> > > > considering including this patch.
> > > >
> > > > Thanks everyone!
> > > > Benjamin
> > > >
> > > >  drivers/hid/wacom_sys.c | 23 ++++++++++++++++++
> > > >  drivers/hid/wacom_wac.c | 62
> > > > +++++++++++++++++++++++++++++++++++++++++++++++++
> > > >  drivers/hid/wacom_wac.h |  3 +++
> > > >  3 files changed, 88 insertions(+)
> > > >
> > > > diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
> > > > index e1ec192..ef4d147 100644
> > > > --- a/drivers/hid/wacom_sys.c
> > > > +++ b/drivers/hid/wacom_sys.c
> > > > @@ -410,6 +410,9 @@ static int wacom_query_tablet_data(struct
> > hid_device
> > > > *hdev,
> > > >                 else if (features->type == WACOM_27QHDT) {
> > > >                         return wacom_set_device_mode(hdev, 131, 3, 2);
> > > >                 }
> > > > +               else if (features->type == BAMBOO_PAD) {
> > > > +                       return wacom_set_device_mode(hdev, 2, 2, 3);
> > > > +               }
> > > >         } else if (features->device_type == BTN_TOOL_PEN) {
> > > >                 if (features->type <= BAMBOO_PT && features->type !=
> > > > WIRELESS) {
> > > >                         return wacom_set_device_mode(hdev, 2, 2, 2);
> > > > @@ -1417,6 +1420,20 @@ static int wacom_probe(struct hid_device *hdev,
> > > >                         goto fail_allocate_inputs;
> > > >         }
> > > >
> > > > +       /*
> > > > +        * Bamboo Pad has a generic hid handling for the Pen, and we
> > > > switch it
> > > > +        * into debug mode for the touch part.
> > > > +        * We ignore the other interfaces.
> > > > +        */
> > > > +       if (features->type == BAMBOO_PAD) {
> > > > +               if (features->pktlen == WACOM_PKGLEN_PENABLED) {
> > > > +                       features->type = HID_GENERIC;
> > > > +               } else if (features->pktlen != WACOM_PKGLEN_BP_TOUCH) {
> > > > +                       error = -ENODEV;
> > > > +                       goto fail_shared_data;
> > > > +               }
> > > > +       }
> > > > +
> > > >         /* set the default size in case we do not get them from hid */
> > > >         wacom_set_default_phy(features);
> > > >
> > > > @@ -1451,6 +1468,12 @@ static int wacom_probe(struct hid_device *hdev,
> > > >                 features->y_max = 4096;
> > > >         }
> > > >
> > > > +       /*
> > > > +        * Same thing for Bamboo PAD
> > > > +        */
> > > > +       if (features->type == BAMBOO_PAD)
> > > > +               features->device_type = BTN_TOOL_FINGER;
> > > > +
> > > >         if (hdev->bus == BUS_BLUETOOTH)
> > > >                 features->quirks |= WACOM_QUIRK_BATTERY;
> > > >
> > > > diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
> > > > index 1a65079..8627581 100644
> > > > --- a/drivers/hid/wacom_wac.c
> > > > +++ b/drivers/hid/wacom_wac.c
> > > > @@ -1826,6 +1826,49 @@ static int wacom_bpt_irq(struct wacom_wac
> > *wacom,
> > > > size_t len)
> > > >         return 0;
> > > >  }
> > > >
> > > > +static int wacom_bamboo_pad_irq(struct wacom_wac *wacom, size_t len)
> > > > +{
> > > > +       struct input_dev *input = wacom->input;
> > > > +       unsigned char *data = wacom->data;
> > > > +       unsigned char *finger_data, prefix;
> > > > +       unsigned id;
> > > > +       int x, y;
> > > > +       bool valid;
> > > > +
> > > > +       /* bit 2 in data[1] is set when there is touch information
> > > > available */
> > > > +       if ((len != WACOM_PKGLEN_BP_TOUCH) ||
> > > > +           (data[0] != WACOM_REPORT_BP_TOUCH) ||
> > > > +           !(data[1] & 0x02))
> > > > +               return 0;
> > > > +
> > > > +       prefix = data[9];
> > > > +
> > > > +       for (id = 0; id < wacom->features.touch_max; id++) {
> > > > +               valid = !!(prefix & BIT(id)) &&
> > > > +                       !wacom->shared->stylus_in_proximity;
> > > > +
> > > > +               input_mt_slot(input, id);
> > > > +               input_mt_report_slot_state(input, MT_TOOL_FINGER,
> > valid);
> > > > +
> > > > +               if (!valid)
> > > > +                       continue;
> > > > +
> > > > +               finger_data = data + 10 + id * 3;
> > > > +               x = finger_data[0] | ((finger_data[1] & 0x0f) << 8);
> > > > +               y = (finger_data[2] << 4) | (finger_data[1] >> 4);
> > > > +
> > > > +               input_report_abs(input, ABS_MT_POSITION_X, x);
> > > > +               input_report_abs(input, ABS_MT_POSITION_Y, y);
> > > > +       }
> > > > +
> > > > +       input_mt_sync_frame(input);
> > > > +
> > > > +       input_report_key(input, BTN_LEFT, prefix & 0x40);
> > > > +       input_report_key(input, BTN_RIGHT, prefix & 0x80);
> > > > +
> > > > +       return 1;
> > > > +}
> > > > +
> > > >  static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
> > > >  {
> > > >         unsigned char *data = wacom->data;
> > > > @@ -1962,6 +2005,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac,
> > > > size_t len)
> > > >                 sync = wacom_bpt_irq(wacom_wac, len);
> > > >                 break;
> > > >
> > > > +       case BAMBOO_PAD:
> > > > +               sync = wacom_bamboo_pad_irq(wacom_wac, len);
> > > > +               break;
> > > > +
> > > >         case WIRELESS:
> > > >                 sync = wacom_wireless_irq(wacom_wac, len);
> > > >                 break;
> > > > @@ -2300,6 +2347,13 @@ int
> > wacom_setup_pentouch_input_capabilities(struct
> > > > input_dev *input_dev,
> > > >                                               0, 0);
> > > >                 }
> > > >                 break;
> > > > +       case BAMBOO_PAD:
> > > > +               __clear_bit(ABS_MISC, input_dev->absbit);
> > > > +               input_mt_init_slots(input_dev, features->touch_max,
> > > > +                                   INPUT_MT_POINTER);
> > > > +               __set_bit(BTN_LEFT, input_dev->keybit);
> > > > +               __set_bit(BTN_RIGHT, input_dev->keybit);
> > > > +               break;
> > > >         }
> > > >         return 0;
> > > >  }
> > > > @@ -2953,6 +3007,12 @@ static const struct wacom_features
> > > > wacom_features_0x30C =
> > > >         { "Wacom ISDv5 30C", .type = WACOM_24HDT, /* Touch */
> > > >           .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x30A, .touch_max = 10,
> > > >           .check_for_hid_type = true, .hid_type = HID_TYPE_USBNONE };
> > > > +static const struct wacom_features wacom_features_0x318 =
> > > > +       { "Wacom USB Bamboo PAD", 4095, 4095, /* Touch */
> > > > +         .type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
> > > > +static const struct wacom_features wacom_features_0x319 =
> > > > +       { "Wacom Wireless Bamboo PAD", 4095, 4095, /* Touch */
> > > > +         .type = BAMBOO_PAD, 35, 48, .touch_max = 4 };
> > > >  static const struct wacom_features wacom_features_0x323 =
> > > >         { "Wacom Intuos P M", 21600, 13500, 1023, 31,
> > > >           INTUOSHT, WACOM_INTUOS_RES, WACOM_INTUOS_RES,
> > > > @@ -3101,6 +3161,8 @@ const struct hid_device_id wacom_ids[] = {
> > > >         { USB_DEVICE_WACOM(0x314) },
> > > >         { USB_DEVICE_WACOM(0x315) },
> > > >         { USB_DEVICE_WACOM(0x317) },
> > > > +       { USB_DEVICE_WACOM(0x318) },
> > > > +       { USB_DEVICE_WACOM(0x319) },
> > > >         { USB_DEVICE_WACOM(0x323) },
> > > >         { USB_DEVICE_WACOM(0x32A) },
> > > >         { USB_DEVICE_WACOM(0x32B) },
> > > > diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
> > > > index 021ee1c..bf43e0f 100644
> > > > --- a/drivers/hid/wacom_wac.h
> > > > +++ b/drivers/hid/wacom_wac.h
> > > > @@ -33,6 +33,7 @@
> > > >  #define WACOM_PKGLEN_MTTPC     40
> > > >  #define WACOM_PKGLEN_DTUS      68
> > > >  #define WACOM_PKGLEN_PENABLED   8
> > > > +#define WACOM_PKGLEN_BP_TOUCH  32
> > > >
> > > >  /* wacom data size per MT contact */
> > > >  #define WACOM_BYTES_PER_MT_PACKET      11
> > > > @@ -67,6 +68,7 @@
> > > >  #define WACOM_REPORT_24HDT             1
> > > >  #define WACOM_REPORT_WL                        128
> > > >  #define WACOM_REPORT_USB               192
> > > > +#define WACOM_REPORT_BP_TOUCH          16
> > > >
> > > >  /* device quirks */
> > > >  #define WACOM_QUIRK_MULTI_INPUT                0x0001
> > > > @@ -122,6 +124,7 @@ enum {
> > > >         BAMBOO_PT,
> > > >         WACOM_24HDT,
> > > >         WACOM_27QHDT,
> > > > +       BAMBOO_PAD,
> > > >         TABLETPC,   /* add new TPC below */
> > > >         TABLETPCE,
> > > >         TABLETPC2FG,
> > > > --
> > > > 2.1.0
> > > >
> > > >
> >
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