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HID: uclogic: Support HUION devices with up to 20 buttons

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The HID descriptor for HUION tablets was limited to 13 buttons. However,
there are devices with more buttons in their frames.

So far, the device with more buttons released by HUION is the Huion
Kamvas Pro 24 (GT-240, QHD) [1], with 20 buttons.

Tweak the HID descriptor to support it.

Link: https://gitlab.freedesktop.org/libinput/libinput/-/issues/989  [1]
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
This commit is contained in:
José Expósito 2024-05-24 13:21:35 +02:00 committed by Jiri Kosina
parent 70ec81c2e2
commit 48144e83da
1 changed files with 3 additions and 3 deletions
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6
drivers/hid/hid-uclogic-rdesc.c
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@ -689,10 +689,10 @@ const size_t uclogic_rdesc_v2_pen_template_size =
0xA0, /* Collection (Physical), */ \
0x05, 0x09, /* Usage Page (Button), */ \
0x19, 0x01, /* Usage Minimum (01h), */ \
0x29, 0x03, /* Usage Maximum (03h), */ \
0x95, 0x03, /* Report Count (3), */ \
0x29, 0x0A, /* Usage Maximum (0Ah), */ \
0x95, 0x0A, /* Report Count (10), */ \
0x81, 0x02, /* Input (Variable), */ \
0x95, ((_size) * 8 - 45), \
0x95, ((_size) * 8 - 52), \
/* Report Count (padding), */ \
0x81, 0x01, /* Input (Constant), */ \
0xC0, /* End Collection, */ \