Re: [PATCH v4 0/4] Add support for XP-PEN Deco L

From: Jiri Kosina
Date: Wed Jun 15 2022 - 09:52:55 EST


On Sat, 11 Jun 2022, José Expósito wrote:

> Hello everyone,
>
> This patchset adds support for the UGEE XP-PEN Deco L tablet.
> This device belongs to a family of tablets that must receive a chunk of
> magic data in order to be enabled (named UGEE v2 internally).
>
> Once the device is enabled, its parameters can be discovered by parsing
> a report descriptor. HUION v1 tablets have a similar report descriptor
> but, in the case of UGEE v2 tablets, the number of buttons are also
> discoverable [1].
>
> The ability to discover the number of buttons is the reason for the
> first 3 patches. They enable frame templates.
> Because I lack the hardware to fully test this driver, I added some
> KUnit tests to make sure no bugs are introduced.
> I didn't see any other test in the subsystem (and I doubt I'm the first
> person writing one) so please let me know if I need to move the test to
> a different place.
>
> The last patch enables the tablet.
>
> Best wishes,
> José Expósito
>
> [1] I don't own a HUION v1 device, so I'm not sure if the information
> about the number of buttons is also present and it is not used in
> the driver for some reason.
> [2] https://lore.kernel.org/linux-input/20220516112159.GA74406@elementary/T/#t
>
> ---
>
> v1 - https://lore.kernel.org/linux-input/20220518224702.1409327-1-jose.exposito89@xxxxxxxxx/
>
> v2 - https://lore.kernel.org/linux-input/20220518224702.1409327-1-jose.exposito89@xxxxxxxxx/T/
>
> - Add MODULE_DESCRIPTION/LICENSE/AUTHOR to hid-uclogic-rdesc-test.c
> - Remove unused variable in uclogic_params_ugee_v2_init
> - Add sparse __force anotation in the result of cpu_to_le16
> - Add DISABLE_STRUCTLEAK_PLUGIN for KUnit tests
>
> v3 - https://lore.kernel.org/linux-input/nycvar.YFH.7.76.2206081150060.10851@xxxxxxxxxxxxx/T/
>
> - Improve Kconfig message
> - Add .kunitconfig. Thanks to Daniel Latypov for suggesting it in an
> unrelated patch:
> https://lore.kernel.org/dri-devel/CAGS_qxpV2SsihEdgXZ6+7N0dxLmdRANq+qE4iUZ2aNrf6vuLYg@xxxxxxxxxxxxxx/
>
> v4:
>
> - Group all the test of the subsystem under HID_KUNIT_TEST:
> HID_UCLOGIC_KUNIT_TEST -> HID_KUNIT_TEST
> - Remove DISABLE_STRUCTLEAK_PLUGIN:
> https://lore.kernel.org/dri-devel/CAGS_qxpFO4ixW=08ZcdcD9J1kU=B3mwoBJkPW8AKu0sKs8aKfA@xxxxxxxxxxxxxx/
>

Now in hid.git#for-5.20/uclogic. Thanks,

--
Jiri Kosina
SUSE Labs