[Bug 206897] New: Huion tablet not recognized from kernel 5.3.1

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=206897

            Bug ID: 206897
           Summary: Huion tablet not recognized from kernel 5.3.1
           Product: Drivers
           Version: 2.5
    Kernel Version: from 5.3.1 to 5.6-rc6
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: USB
          Assignee: drivers_usb@kernel-bugs.kernel.org
          Reporter: hebm12@gmail.com
        Regression: No

Hi Kernel Experts!

My Huion 1060plus tablet is not recognized from kernel version 5.3.1

dmesg output is:


[ 4168.587592] usb 1-1.1: new full-speed USB device number 13 using xhci_hcd
[ 4168.990456] usb 1-1.1: New USB device found, idVendor=256c, idProduct=006e,
bcdDevice=30.00
[ 4168.990461] usb 1-1.1: New USB device strings: Mfr=5, Product=6,
SerialNumber=0
[ 4168.990463] usb 1-1.1: Product: PenTablet 
[ 4169.003082] usb 1-1.1: can't set config #1, error -32


Previous working versions have this output:

[   62.724538] usb 2-3.1: new full-speed USB device number 3 using xhci_hcd
[   62.851463] usb 2-3.1: New USB device found, idVendor=256c, idProduct=006e,
bcdDevice=30.00
[   62.851470] usb 2-3.1: New USB device strings: Mfr=5, Product=6,
SerialNumber=0
[   62.851475] usb 2-3.1: Product: PenTablet 
[   62.909757] hidraw: raw HID events driver (C) Jiri Kosina
[   62.929599] usbcore: registered new interface driver usbhid
[   62.929601] usbhid: USB HID core driver
[   62.939433] input: PenTablet  as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.0/0003:256C:006E.0001/input/input15
[   62.939691] input: PenTablet  Mouse as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.0/0003:256C:006E.0001/input/input16
[   62.939804] hid-generic 0003:256C:006E.0001: input,hidraw0: USB HID v1.11
Mouse [PenTablet ] on usb-0000:00:14.0-3.1/input0
[   62.943515] input: PenTablet  Mouse as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.1/0003:256C:006E.0002/input/input17
[   62.943646] input: PenTablet  as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.1/0003:256C:006E.0002/input/input18
[   62.943805] hid-generic 0003:256C:006E.0002: input,hiddev0,hidraw1: USB HID
v1.11 Mouse [PenTablet ] on usb-0000:00:14.0-3.1/input1
[   62.944370] input: PenTablet  Keyboard as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.2/0003:256C:006E.0003/input/input19
[   62.951136] usb 2-3.4: new high-speed USB device number 4 using xhci_hcd
[   62.997966] input: PenTablet  Consumer Control as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.2/0003:256C:006E.0003/input/input20
[   62.998070] input: PenTablet  System Control as
/devices/pci0000:00/0000:00:14.0/usb2/2-3/2-3.1/2-3.1:1.2/0003:256C:006E.0003/input/input21
[   62.998161] hid-generic 0003:256C:006E.0003: input,hidraw2: USB HID v1.0b
Keyboard [PenTablet ] on usb-0000:00:14.0-3.1/input2


Looking further down, the commit that creates the problem is (thanks to
https://bbs.archlinux.org/viewtopic.php?pid=1878478#p1878478):

commit ef513be0a9057cc6baf5d29566aaaefa214ba344
Author: Jim Lin <jilin@nvidia.com>
Date:   Mon Jun 3 18:53:44 2019 +0800

    usb: xhci: Add Clear_TT_Buffer

    USB 2.0 specification chapter 11.17.5 says "as part of endpoint halt
    processing for full-/low-speed endpoints connected via a TT, the host
    software must use the Clear_TT_Buffer request to the TT to ensure
    that the buffer is not in the busy state".

    In our case, a full-speed speaker (ConferenceCam) is behind a high-
    speed hub (ConferenceCam Connect), sometimes once we get STALL on a
    request we may continue to get STALL with the folllowing requests,
    like Set_Interface.

    Here we invoke usb_hub_clear_tt_buffer() to send Clear_TT_Buffer
    request to the hub of the device for the following Set_Interface
    requests to the device to get ACK successfully.

    Signed-off-by: Jim Lin <jilin@nvidia.com>
    Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-ring.c | 27 ++++++++++++++++++++++++++-
drivers/usb/host/xhci.c      | 21 +++++++++++++++++++++
drivers/usb/host/xhci.h      |  5 +++++
3 files changed, 52 insertions(+), 1 deletion(-)


Thanks for your help!

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